2024-03-29T00:37:26Z
https://jpp.journals.ekb.eg/?_action=export&rf=summon&issue=17817
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
EFFECT OF SOWING METHODS AND SOME WEED CONTROL TREATMENTS ON DODDER CONTROL IN FLAX CROP
I.
Soliman
M.
Abd El-Hamid
Two field experiments were conducted at Sakha Experimental Station during 2004/2005 and 2005/2006 seasons to determine the effect of different sowing methods {dry method (afir) and dry method after false irrigation (hyrathy)} and weed control treatments (hand combing, imazethapyr, imazamox and butralin) on controlling dodder weed Cuscuta epilinum and on some growth characters of flax plants Linum usitatissimum, L. Results showed that the different sowing methods and hand combing were only suitable to avoid the competition of dodder weed due to their low weed population density. Also, the results showed that herbicides prevented the infestation with dodder up to 49 days in flax after treatments. All tested herbicides increased the plant height, number of capsules/plant, fiber yield and seed yield of flax crop in both seasons with different rations as compared to infested control treatment. Also, the results indicated that imazethapyr herbicide was least effective on chlorophyll content hence it caused 36.65% inhibition at 0.07 l/fed (twice) after 49 days from treatment, followed by imazamox at 0.4 l/fed (twice) 30.11% inhibition and butralin at 2.0 l/fed when used surface application at the same time. These results indicate that under heavy invested soil with dodder, it is possible to sowing after false irrigation ( hyrathy ) method with the application of herbicides i.e. butralin at 2.0 l/fed or imazamox at 0.4 l/fed (twice). These practices gave the highest reduction in dodder injury and increased flax yield and its components.
2009
06
01
6499
6514
https://jpp.journals.ekb.eg/article_118396_61d97eec7910eb32d9ad5c520183dd91.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
INFLUENCE OF MINERAL AND BIOFERTILIZER ON FORAGE YIELD AND QUALITY TRAITS OF TEOSINTE
Hoda
Ibrahim
B.
kandil
N.
Hamed
Two field experiments were conducted at two locations; New Valley and Giza Agric. Res. Stations, ARC during the two successive summer seasons of 2007 and 2008 to study the influences of inoculation with Cyanobacteria, Azospirillum and Pseudomonas individually or in combination on forage yield and quality traits of teosinte ( local variety). The experimental design was a randomized complete block with three replications. Combined data over the two seasons at two locations indicated that biofertilizers inoculation significantly increased fresh and dry yields, plant height, crude protein, crude fiber, ash%, ether extract and nitrogen free extract and total digestible nutrient comparing to uninoculated plants through three cuts. Also, data confermed the superiority of inculation with mixture of inoculants in achieving higher values of all forage yield teosinte characters. Teosinte plants inoculated with Cyanobacteria, Azospirillum and Pseudomonas gave significant increases in fresh forage yield by about 149 and 140% as compared with the uninoculated plants receiving no nitrogen fertilizer at NewValley and Giza location, respectively.
It is concluded that teosinte inoculated with biofertilizers in dual or in mixture and received the half dose of nitrogen fertilizer gave results near or similar those obtained from uninoculated teosinte and received the recommended dose (120kgNfed-1) of nitrogen fertilizer.
teosinte
Zea mays spp. mexicana
Euchlaena mexicana
biofertilizers
Plant Growth Promoting Rhizobacteria
Cyanobacteria
Azospirillum sp
Pseudomonas sp
N2-fixing
Diazotrophs
2009
06
01
6515
6530
https://jpp.journals.ekb.eg/article_118397_09faa4dafab4fcc0e2e2c0e6369b53cd.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
EFFECT OF ECONOMIC USE OF IRRIGATION WATER ON GROWTH AND YIELD OF INTERCROPPED MAIZE AND SUNFLOWER
A.
Nawar
H.
Khalil
H.
Ibrahim
K.
EL-Habbak
Three maize/ sunflower intercropping patterns (S1, S2 and S3) were tested compared to pure maize (Pm) and pure sunflower (Psu) grown in solid planting under three irrigation treatments during 2005 and 2006 seasons. Intercropping unit, that repeated twice, consisted of four ridges, of which 3 were sown with sunflower and the fourth was sown with maize on one side (S1) or two sides (S2) of ridge. In S3, maize was grown as in S2 with additional side on the third sunflower ridge. Irrigation treatments were frequent irrigation (I1) every 15 days and skipping either second (I2) or the third (I3) irrigation (at 35 or 50 days after sowing, respectively). Frequent irrigation of maize gave significantly greater plant height, percent of fertile plants, 100-grain weight and grain yield/ fed., under (I1) irrigation regime compared to maize grown under I2 and I3 irrigation levels. Maize intercropped with sunflower in S3 system produced the tallest plants, while pure maize in (Pm) plots, followed by that of S1 system, produced heavier 100-grain weight and greater grain yield/ fed. than those obtained from S2 and S3 systems. Pure maize, followed by maize in S1, gave higher values for plant height, number of grains/ ear and grain yield/ fed., compared to S2 and S3 systems over I2 and I3 irrigation regimes.
Frequent irrigation followed by early drought (I2) significantly surpassed late drought (I3) for sunflower characters of seed yield/ plant, 100-seed weight and seed yield/ fed. The S1 system with frequent irrigation produced greater sunflower 100-seed weight and seed yield/ fed. than from S2 and S3 over I2 and I3 irrigation treatments.
The maximum LER (1.59) was obtained from S1 applied with (I1) irrigation treatment. It is suggested that as total populations in the intercrop are higher (S2 and S3) than that of sole cropping, yields could be less than sole crop yields because of the increased competition for moisture under high stress conditions (I3).
2009
06
01
6531
6542
https://jpp.journals.ekb.eg/article_118398_50d88868e29a19c0bd375de902b5efae.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
EFFECT OF WINTER OIL AND DORMEX SPRAYS ON FRUIT QUALITY AND STORAGE ABILITY OF LECONTE PEAR FRUITS
B.
Samra
M.
Mostafa
This investigation was carried out during 2005 and 2006 seasons to study the effect of spraying Leconte pear trees with winter oil at 2 % and Dormex at 1, 2 % each alone or in combination as Dormancy breaking agents to study their effect on fruit quality at harvest time and storage ability through marketing for 6 days under room temperature. The data revealed that dormex at 1 or 2 % each alone or with winter oil significantly increased fruit weight, firmness and SSC/acid ratio at harvest than spraying with winter oil or the control. Furthermore, winter oil alone or with dormex significantly reduced the percent of total loss in fruit weight than those sprayed with dormex alone or the control.
Fruit firmness was reduced but total caroteniods and SSC/acid ratio were increased through marketing after 6 days from harvest. In this respect, sprayed Le-Conte pear with both winter oil and Dormex at 2 % gave a more pronounced effect on fruit quality at harvest time and through marketing.
2009
06
01
6543
6553
https://jpp.journals.ekb.eg/article_118399_8df9c83bfb448aa0353c1760b4104e24.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
RESPONSE OF CRINUM PLANTS TO FOLIAR APPLICATION WITH GA3 AND CALCIUM.
Magda
Hassanein
Two field experiments were carried out during the two successive seasons of 2006 / 2007 and 2007 / 2008 to investigate the effect of GA3 (0, 50, 100 and 150 ppm) and calcium (0, 50, 100 and 150 ppm) as well as their interaction on growth, flowering, chemical composition and bulb production of Crinum asiaticum plants.
All concentrations of GA3 or calcium increased leaves parameters (number, width, length and dry weight of leaves / plant), floret parameters (number, diameter and fresh weight of florets / spike) and spike parameters (number, length, diameter and spike fresh weight), as well as, total carbohydrates and number and fresh weight of bulbs / plant.
All concentrations of GA3 or calcium decreased the number of days to full blooming and extending the duration of flower on plant and flower vase life. Morever, GA3 at all concentrations decreased whereas calcium concentrations increased the total chlorophylls contents in the leaves.
All combinations between GA3 and calcium concentrations had a positive effect on growth, flowering and bulb production. And the treatment GA3× calcium at 150 ppm showed the most beneficial effect in this respect.
2009
06
01
6555
6565
https://jpp.journals.ekb.eg/article_118400_0cea5a0586034910e5853aeef0f8ea66.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
EFFECT OF SOME ORGANIC AND BIO-FERTILIZATION TREATMENTS ON GLADIOLUS PLANTS: 1- VEGETATIVE GROWTH AND FLOWERING
Magda
Hassanein
Soheir
El – Sayed
A field experiment was carried out during the successive seasons of 2006 / 2007 and 2007 / 2008 to study the effect of some organic fertilizer (compost) and biofertilizers (phosphorein and / or E.M.) and their interaction on Gladiolus grandiflorus cv. Eurovision plant.
Results showed that vegetative growth (leaf length, number of leaves / plant and leaves dry weight) and flowering aspects (length of spike, flowering part length of spike, number of florets / spike, lower floret diameter and single floret fresh weight) were gradually increased by increasing the level of organic fertilizer.
All biofertilization treatments significantly increased all vegetative growth characters and flowering parameters in comparison with the control. Phosphorein plus E.M. seemed more effective in this concern.
Flowering date was delayed due to compost treatments, while flowering date was not significant affected by biofertilization treatments. It was found that the use of high level of compost in combination with biofertilizers noticeably improved the different vegetative growth characters and flowering parameters of gladiolus plants.
2009
06
01
6567
6575
https://jpp.journals.ekb.eg/article_118401_50cb22f143f90a0553c349d2f9d84fc5.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
EFFECT OF SOME ORGANIC AND BIO-FERTILIZATION TREATMENTS ON GLADIOLUS PLANTS 2- CORM PRODUCTION AND CHEMICAL CONSTITUENTS
Magda
Hassanein
Soheir
El – Sayed
A field experiment was conducted during the two successive seasons of 2006 / 2007 and 2007 / 2008 at the Nursery of ornamental plants, Fac. Agric. Minia Univ. to investigate the effect of compost (0.0, 4, 8 and 12 t / fed.) and biofertilizers treatments (phosphorein and / or E.M.) on corm production and chemical constituents of Gladiolus grandiflorus cv. Eurovision.
The obtained results indicated that, corm diameter, number of cormels / plant, dry weight of corm and cormels as well as chemical constituents including total chlorophyll, percentages of N, P and K in the leaves, N, P, K and total sugars contents in corm were gradually increased by increasing the levels of compost.
All biofertilizer treatments significantly increased corm production and chemical constituents parameters in comparison to the control plant, Phosphorein + E.M. treatment was more effective in this concern.
The interaction between compost and biofertilization treatments was significant with the highest values for corm production and chemical constituents were obtained due to compost at 12 t / fed. in combination with phosphorein + E.M.
2009
06
01
6577
6588
https://jpp.journals.ekb.eg/article_118634_f96fecfd61d1d1ec3b13c3be31731eff.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
EFFECT OF DIFFERENT POLLINATION LEVELS ON FRUIT QUALITY OF “HAYANY” DATE PALM FRUITS (Phoenix dactylifera L.)
A.
Omar
A.
El-Shereif
This investigation was carried out during two successive seasons (2006 and 2007) in Balteem district, Kafr El-Sheikh governorate, Egypt, aiming to investigate the influence of different pollination levels on fruit quality of “Hayany” date palm compared to the level pollination used by farmers (9 strands / inflorescence). Five healthy female date palms were selected, 12 spathes (inflorescence) were left on each one. Four levels of pollination were applied; 3,6 and 12 strands/inflorescence and control (9 strands / inflorescence, farmers level pollination). The results showed that fruit set percentage increased by increasing pollination level in both experimental seasons. Bunch weight increased in treatments 3 strands/inflorescence and 6 strands/inflorescence and declined by increasing pollination level to record the lowest values by treatment 12 strands/inflorescence and control. The highest acidity and tannins content were recorded by 12 strands/inflorescence treatment in both seasons. P2 (6 strands/inflorescence) showed the highest values of bunch weight, fruit weight and flesh weight. Moreover, fruit chemical properties were enhanced under this treatment compared to the other treatments. Based on these results, it is recommend that the optimum pollination level to improve fruit set and quality of “Hayany” date palm is 6 strands/inflorescence, under Kafr El-Sheikh conditions.
fruit quality
date palm
Pollination level
Phoenix dactylifera
2009
06
01
6589
6594
https://jpp.journals.ekb.eg/article_118635_b0d0f3ee737acddc5198a55cfac95ce0.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
APPLICATION ONE OF HYDROPONIC SYSTEMS IN PRODUCTION OF Catharanthus roseus L. PLANT
E.
Koriesh
A.
Khalil
Y.
Abd El-Fatah
This study was conducted during the two successive seasons of 2005 and 2006 at the Experimental Farm of El-Kassasin Horticultural Research Station, Ismailia Governorate, using periwinkle plant (Catharanthus roseus, L. G. Don cultivar) to study the effect of nitrogen sources, humic acid concentrations and their interactions on growth and the content of alkaloids determined as perivine.
Plants raised in sand culture and irrigated with complete nutrient solution contain five different ratios of nitrate – N to ammonium – N and four different concentrations of humic acid.
Greatest growth measured by plant height (cm), stem diameter (cm), number of branches/plant, number of leaves/plant, root main length (cm), fresh and dry weights of branches (g)/plant, fresh and dry weights of leaves (g)/plant, fresh and dry weights of roots (g)/plant, N.P.K. % and content of alkaloids occurred at the highest ratios of nitrate – N to ammonium – N . Similar trend was obtained with 200 ppm humic acid.
2009
06
01
6595
6615
https://jpp.journals.ekb.eg/article_118637_aea887488d717ccd8fd3a1fbb0da4591.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
INFLUENCE OF EFFECTIVE MICRO-ORGANISMS, SEAWEED EXTRACT AND AMINO ACIDS APPLICATION ON GROWTH, YIELD AND BUNCH QUALITY OF RED GLOBE GRAPEVINES
Gehan
Sabry
Mervat
Rizk-Alla
M.
Abd El-Wahab
This investigation was conducted for two successive seasons (2007 & 2008) in a private vineyard located at El-Khatatba, Menoufiya governorate; to study the influence of effective micro-organisms, seaweed extract and amino acids application on growth, yield and bunch quality of Red Globe grapevines. The chosen vines were eight-year-old, grown in a sandy loam soil, spaced at 2 X 3 meters apart and irrigated by the drip irrigation system, cane-pruned and trellised by Spanish Parron system. Two rates of the conducted treatments were applied through soil drenching: effective micro-organisms (EM) at 10 or 20 cm/vine; seaweed extract (Gifert) at 10 or 20 cm/vine and amino acids (Pepton) at 0.5 or 1.0 g/vine at three dates: the 1st date after bud burst stage, the 2nd date after fruit set stage, and the 3rd one at veraison stage.
Nine treatments were applied as follows:- Control (untreated vines); EM (10 cm/vine) (EM1); EM (20 cm/vine) (EM2); Gifert (10 cm/vine) (G1); Gifert (20 cm/vine) (G2); Pepton (0.5 g/vine) (P1); Pepton (1.0 g/vine) (P2);EM1 + G1 + P1 and EM2 + G2+ P2.
The results showed that the combined application of EM, Gifert and Pepton at the higher rate gave the best results in comparison with control followed by the lower rate of the same combined products. This treatment resulted in the best yield and its components as well as the best physical characteristics of bunches, improved physical and chemical characteristics of berries and ensured the best vegetative growth parameters. Total chlorophyll and percentages of total amino acids, nitrogen, phosphorus and potassium in the leaves and total carbohydrates in the canes were increased. With respect to microbiological activity in the rhizosphere, it was noticed that total spore forming; the populations of total microorganism; dehydrogenase and phosphatase enzymes activity increased in the rhizosphere as a result of the combined application of EM, Gifert and Pepton at the higher rate. On the other hand, control was found to record the minimum values of these characters.
The economical study indicated that the combined application of EM, Gifert and Pepton at the higher rate on Red Globe grapevines gave the highest net income as compared to the control.
2009
06
01
6617
6637
https://jpp.journals.ekb.eg/article_118638_a7dd49a6093b9f78c73d75f3b1cc0024.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
SCREENING SOME LOCAL AND INTRODUCED PUMPKIN (Cucurbita moschata) GENOTYPES FOR EARLINESS AND FRUIT YIELD TRAITS
H.
Obiadalla-Ali
Nevein
El-Sawah
A.
Helaly
Fifteen genotypes of pumpkin (Cucurbita moschata Duchesne) were screened for earliness and fruit yield at the Experimental farm, faculty of Agriculture, Sohag University during the two successive seasons; 2007 and 2008. There were significant differences among genotypes for all studied characters. Etamp cultivar had the longest vine length and leaves number per plant, while Butternut cultivar had the shortest vine length in both seasons. Butternut cultivar gave the highest value of sex ratio, while the lowest one was recorded by El-Mansoura cv. Butternut cultivar was the earliest in both male and female flowers, while genotype Khartoum (Sudan) accession was the latest in male and female flowers in both seasons. Etamp cultivar bore the first male and female flowers on the highest node number, while Butternut cultivar produced the 1st male and female flowers on the lowest node number in both seasons. Pepa (Beni Suef) accession had the highest number of nodes between the 1st male and 1st female flowers while; Butternut cultivar had the lowest number of nodes between the 1st male and the 1st female flowers in both seasons. Desuk (Kafr El-Sheikh) accession gave the largest number of days between the 1st male and the 1st female flowers anthesis, while Butternut cultivar gave the lowest number of days between the 1st male and the 1st female flowers anthesis. Butternut cultivar gave the highest sex ratio, while El-Mansoura accession gave the lowest sex ratio in both seasons. Etamp cultivar fruits were longest, while those of accession Omdurman (Sudan) were shortest in both seasons. Etamp cultivar was greatest in fruit diameter, while Butternut accession was smallest in fruit diameter in both seasons. Etamp cultivar was heaviest fruit weight, while Butternut cultivar was lowest in fruit weight in both seasons. Etamp cultivar gave the highest value for flesh thickness while, Butternut cultivar showed the lowest value for this character in both seasons. Etamp cultivar exceeded all other genotypes in total fruit yield, while Butternut cultivar produced the lowest fruit yield in both seasons. Butternut cultivar gave the highest value for total soluble solids%, while Bardis (Sohag) accession showed the lowest value for this character, in both seasons. Thus, the results of this study could be useful in breeding programs for improving local pumpkin genotypes under Upper Egypt conditions.
earliness
yield
Flesh thickness
Landraces and Total soluble solids
2009
06
01
6639
6652
https://jpp.journals.ekb.eg/article_118640_38bd98f001ed52a66f36ea770743f2f1.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
EFFECT OF SEEDING RATES OF FAHL BERSEEM MIXED WITH WHEAT UNDER THREE RATES OF NITROGEN FERTILIZER ON YIELD AND YIELD COMPONENTS OF BOTH CROPS
Sh.
Abdel-Zaher
M.
Abdel-Galil
Sahar
Ibrahim
Two field trials were conducted at Sers EL-Lian Experiment Station during 2006/2007 and 2007/2008 to study the effect of fahl berseem mixed with wheat under three densities of fahl berseem (15, 25 and 35%) of the recommended rate of fahl berseem (20 kg fed-1). Each rate was mixed with the recommended rate of wheat seed (60 kg fed-1) and fertilized by three rates of nitrogen fertilizer, i.e., 100% of the recommended rate of N for wheat (75 kg Nfed-1), 75% (56.25 kg Nfed-1) and 50% of the recommended rate (37.5 kg Nfed-1) on growth, yield and yield components of both crops in the mixture. The data showed that all values of wheat characters significantly decreased by increasing the percentage of fahl berseem seeding rates when mixed with wheat, whereas, opposite trend was found by increasing nitrogen rates. The data also revealed that all fahl berseem characters significantly increased by increasing percentage of fahl berseem when mixed with wheat or by increasing nitrogen rates. Data also, indicated that mixing 35% of fahl berseem seeds with wheat fertilized by the recommended rate (75 kg N fed-1) gave the best land equivalent ratio (LER) and total income. Soil sustainability increased as indicated by chemical properties of the soil. Chemical analysis revealed increased values of organic matter, available nitrogen, phosphorus and potassium when growing mixtures as compared with growing wheat only. In the 2yr, fahl berseem was more competitive than wheat.
mixed cropping
Wheat
Fahl berseem
land equivalent ratio
2009
06
01
6653
6666
https://jpp.journals.ekb.eg/article_118643_094bda910a8a59290012ca8e39565513.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
HOT WATER DIP AND PRECONDITIONING TREATMENTS TO REDUCE CHILLING INJURY AND MAINTAIN POST-HARVEST QUALITY OF VALENCIA AND NAVEL ORANGES DURING COLD QUARANTINE
M.
Bassal
M.
El-Hamahmy
The potential of hot water dipping (HWD) at 41±1°C for 20 min or at 50±1°C for 5 min and pre-storage conditioning (6 days at 16-18°C and 45-65% RH) treatments to control chilling injury (CI) and decay of W. Navel and Valencia Late oranges during cold quarantine at 1°C and 85–90% RH for 20 days, subsequent storage at 10°C and 85–90% RH for 20 days (as a transit period) and an additional 20 days of simulated marketing period (SMP) at 20±2°C and 40-65% RH was investigated over 2 harvest seasons (2006/2007 & 2007/2008). Untreated fruits were used as control. We studied their effects on various other postharvest quality parameters such as weight loss, juice %, soluble solids content (SSC), total acidity (TA), ascorbic acid (VC), and reducing sugars, free phenols, peroxidase (POX) and catalase (CAT) activities, and ascorbic acid oxidase (ASAO).
After SMP, HWD treatments reduced the incidence of CI in W. Navel (4.2-13% versus 29–33% in control and 12-21% in conditioning treatments) and Valencia (0–27% against 60-63% in control and 60–67% in conditioning treatments). HWD treatments effectively prevented the incidence of decay in both cultivars in all storage stages, while conditioning one reduced it in W. Navel to 17-13%, against 25% in the control, although in Valencia, a very little insignificant decay % was found (3-7%). HWD treatments reduced the rate of weight loss in both cultivars, while conditioning one reduced it in Valencia, only. In addition, HWD treatments mostly increased VC content, especially in W. Navel, while reduced ASAO activity.
HWD treatments increased free phenols content in both cultivars, as compared with control and conditioning treatments, although the last increased it as compared with control. HWD at 41°C for 20 min was more effective than at 50°C for 5 min in this respect.
All treatments significantly increased POX and CAT activities, whether in fruit peel or juice of both cultivars as compared with control. HWD at 41°C for 20 min treatment was more effective in this respect. Generally, the reduction in chilling injury % was paralleled to higher POX and CAT activities in fruit peel and juice, and free phenols in juice, this may explain how and why the treatments reduced CI incidence. Overall, it is concluded that short postharvest HWD treatment is preferable, since it effectively induced tolerance to cold temperatures in W. Navel and Valencia Late oranges without impairing any other postharvest qualities.
C.sinensis
Cold quarantine
Chilling injury
hot water
Conditioning
catalase
peroxidase
2009
06
01
6667
6688
https://jpp.journals.ekb.eg/article_118645_9ed774287ea7b61954c6c502298f45df.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
EFFECT OF CYTOKININ TYPE AND CONCENTRATION ON THE MULTIPLICATION RATE OF SOME ORNAMENTAL PLANTS
A.
Sayed
M.
Khafagy
A.
Abo El-Kheer
F.
Saadawy
This study was carried out in the Tissue Culture Laboratory of Zohriya Botanical Garden, Horticulture Research Institute, Agricultural Research Center, Giza, Egypt during the period from 2007-2009 to establish an applicable protocol for the rapid micropropagation of Clerodendrum glabrum and Mussaenda luteola. The tabulated data showed that, in the establishment stage, Clorox concentration had a significant effect on survival percentage of both applying Clorox at 15%, value of survival percentage of both plants explants rose to the significantly highest level. On the other hand, in the multiplication stage, cytokinin type and concentration had a significant effect on the number of shoots and shoot length. In both plants, the significantly highest number of shoots was found on medium supplemented with BAP at 1 ppm, while all media free of cytokinins of any type (the control treatment) resulted in the significantly lowest number of shoots. On the contrary, the untreated control shoots were significantly the longest, while the shortest ones were those treated with BAP. The interaction between cytokinin type and concentration had a significant effect on the number of leaves of Clerodendrom glabrum only. However, the response of the two plants was somewhat contradictory to each other. The highest number of leaves was produced by the untreated control Mussaenda and Clerodendron shoots treated with BAP at 3 ppm, while the lowest number belonged to Mussaenda shoots treated with TDZ at 2 ppm and the shoots grown on the untreated control media.
2009
06
01
6689
6698
https://jpp.journals.ekb.eg/article_118647_22b1b1fa505675781b78d19fe1713efb.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
COMPARATIVE EVALUATION OF SOME MALE PALMS IN THREE DISTRICTS IN EGYPT
A.
Abdullah
H.
AbdelKareem
Farida
Abd rabo
This investigation was carried out at three Egyptian Governorates, i.e. New Valley (El-Dakhla oasis), Damietta (Kafr El-Batikh) and Wady El-Natron at private orchard during two successive seasons of 2005 and 2006, to evaluate date palm males used for pollination of female palm in these districts. The obtained results showed that, males differed in their morphological spathe characteristics. Time of flowering also differed between males in each governorate. At the NewValley flowering was earlier than at the other two governorates. Viability of pollen grains ranged from 82.9 to 85.2 %. Males from NewValley produced significantly more amount of pollen grain comparing to other regions. The number of retained flowers on strands differed significantly between the three governorates under investigation but the new valley gave the highest percentage of retained flowers on the strands.
Spathe
Inflorescence
pollination
male
sheath
strands
Pollen grains
2009
06
01
6699
6706
https://jpp.journals.ekb.eg/article_118649_73c918a4ab24e861fa5a065defa9f043.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
EVALUATION OF THIRTEEN SEEDLING DATE PALMS GROWN IN ASWAN GOVERNORATE, EGYPT
A.
Abdullah
N.
Nady
This study was carried out during 2006 and 2007 seasons in order to evaluate 13 selected palms grown in Aswan governorate, Egypt, in comparison with the commercial cv. “Sakoty”. The average of the two years of yield per palm, as well as physical and chemical properties of fruit were recorded. Yield per palm was highest with palm no. 12 and 13 in comparison with other tested palms. as well as “Sakoty” cv. while the lowest yield was obtained from palm no. 2. Regarding, physical properties of fruit, fruits of palm no. 12 were the heaviest weight and highest pulp weight%. Concerning chemical properties, data proved the superiority of palm no. 13 in T.S.S% and total sugars content. Fruits of palm no. 6 had lower tannins and acidity% while the highest tannins% was recorded for “Sakoty”.
General evaluation revealed that palm no.12 and 13 seemed to be the superior types in yield and fruit quality among all the tested palms, as they attained the uppermost score units as compared with the standard cv.” Sakoty”. On the contrary, palm no. 2 and 10 showed less palm yield and inferior fruit quality.
Thus one can conclude that all 13 selected palms except palm no. 2 and 10 are of good fruit quality for consumer but only palm 12 and 13 showed the highest yield.
Evaluation
date palm
yield
Fruit weight
dimention and acidity
2009
06
01
6707
6714
https://jpp.journals.ekb.eg/article_118650_8b253057a7d30c501dd24d1f651f2d1b.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
EFFECT OF FOLIAR APPLICATION WITH SALICYLIC ACID AND VITAMIN E ON GROWTH AND PRODUCTIVITY OF TOMATO (Lycopersicon esculentum, Mill.) PLANT.
M.
Mady
Two field experiments wee conducted to study the effect of foliar application with 50 & 100 ppm of salicylic acid (SA) and 100 & 200 ppm of vitamin E (VE) and their combination on some growth aspects, photosynthetic pigments, minerals, endogenous phytohormones, flowering, fruiting and fruit quality of tomato cv. Super strain B during 2006 and 2007 seasons. Plants were sprayed two times at 30 and 45 days after transplanting.
Results indicated that, different applied treatments significantly increased all studied growth parameters as number of branches and leaves per plant, leaf area per plant and leaves dry weight as well. Besides, the two concentrations of each applied salicylic acid or vitamin E obviously increased photosynthetic pigments, NPK, Fe, Zn, Mn, total carbohydrates and crude protein concentrations in leaves of treated plants as compared with those of untreated ones.
Also, all treatments increased gibberellins and cytokinins level in tomato shoots whereas Auxins and abscisic acid were decreased.
Furthermore, the highest early and total yields were obtained with salicylic acid 50ppm + vitamin E 200ppm followed by SA 100 + VE 200ppm, respectively. In addition, chemical composition of minerals and some bioconstituents such as carbohydrates, vitamin C, total soluble solids in tomato fruits were also increased at the same treatments. Therefore, the present study strongly admit the use of salicylic acid and vitamin E as foliar application not only increased early and total yields but also getting a good fruit quality as well.
Salicylic acid
Vitamin E
Photosynthetic pigments
endogenous phytohormones
flowering
yield
Tomato
2009
06
01
6715
6726
https://jpp.journals.ekb.eg/article_118654_06302b1ad22cc86e08ca6980e06ba63c.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
EFFECT OF SOME PHOSPHORUS COMPOUNDS AS SEED-SOAKING MATERIALS ON WINTER SQUASH (Cucurbita pepo L. ) PLANTS
M.
Mady
Two field experiments were conducted to study the effect of squash seed soaked as a pre-sowing treatment with 1000 or 1500 ppm of Monoamonium Phosphate (MAP), Diamonium phosphate (DAP),Urea phosphate (U-P) and phosphoric acid (H3PO5) as phosphorous forms on vegetative and reproductive growth as well as fruit yield and quality were evaluated during winter months.
Results showed that, different phosphorus forms and levels significantly increased all vegetative and reproductive growth traits of squash compared with control. These treatments, also, altered the sex ratio to be in favour of female flowers and led to earliness of fruit production as well as total fruit yield / plant significantly was increased . The highest early and total fruit yield were existed with 1000 ppm of UP. Also, chemical composition such as minerals content, sugars, crude protein, carbohydrates and total free amino acid in leaves as well as vitamin C., total soluble solids and titratable acidity in fruits were also increased with phosphorus treatments. Therefore, the present study, was aimed to use the phosphorus treatment not only to increase earliness and total squash fruit yield but also to avoid all cautions about the inserting of green house production in the agricultural system.
phosphorous
Growth
minerals
carbohydrates
flowering
yield
fruits quality
2009
06
01
6727
6739
https://jpp.journals.ekb.eg/article_118655_58e54acc0710b22eff22e7d1308ad111.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
EVALUATION OF SOME OLIVE CULTIVARS GROWN UNDER EGYPTIAN CONDITIONS
N.
Samra
S.
El-Agamy
B.
Samra
This study was carried out during the two successive seasons of 2005 and 2006 on three olive cultivars (Toffahi, Kroniaki and Picual) grown under newly reclaimed soil in Egypt to evaluate fruit production as well as the physical and chemical properties of the olives.
The obtained data revealed that Kroniaki produced a higher yield per tree (44.2 Kg) while Toffahi and Picual gave 37.8 and 36.2 Kg as a mean of two seasons, respectively. The data also reveal that pollen viability and fruit set percentage of Kroniaki were higher than those obtained from Toffahi or Picual. Whereas, average fruit weight and size of Toffahi was higher than Picual and Kroniaki.
Furthermore, Kroniaki cultivar produced a higher oil content 49.9 % compared to Picual 40.4 % and Toffahi 20.4 % based on dry weight. Yet, Picual gave a higher soluble solids with lower acidity than those obtained form Kroniaki and Toffahi cultivars.
2009
06
01
6741
6748
https://jpp.journals.ekb.eg/article_118657_78edaebde1e66bb865cd8f2886fb5cca.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
CROP CYCLE EFFECTS ON GENETIC VARIABILITY, HERITABILITY, AND YIELD OF SUGARCANE
H.
El-Hinnawy
M.
Masri
Ten promising sugarcane (Saccharum spp.) genotypes; G84/47, G150/99, G103/99, G26/99, G87/98, G24/98, G217/99, G208/99, G193/99 and G28/99 as well as two check cultivars; PH 8013 and GT 54/9 were laid in a randomized complete block design with three replicates to be evaluated at Kom-Ombo Agricultural Research Station, Aswan Governorate for three different crop cycles; plant cane (PC), first ratoon (FR) and second ratoon (SR) crops during 2005/2008 seasons. The objectives of this study were to investigate the effect of crop cycle on sugar yield and its components, as well as its effect on broad-sense genetic and genotype by crop interaction variance components of stalk length, stalk diameter, stalk weight, stalks number and cane yield, as well as juice quality traits; Brix, sucrose%, purity%, sugar recovery% and sugar yield.
Results indicated that stalk length of studied genotypes fluctuated among crop cycles. Stalk diameter and stalks weight decreased for all evaluated genotypes in older crops. Stalk number over the evaluated genotypes significantly increased in FR by 22.6 % and in SR by 21.6 % compared to plant cane with insignificant difference between FR and SR crops. Cane yield of the evaluated genotypes fluctuated between PC and FR crops. However, for most evaluated genotypes it decreased in SR crop. Over studied genotypes it varied from 57.02 tons in FR crop to 43.23 tons in SR crop. Brix, sucrose content, Juice purity, and sugar recovery are generally not affected by crop age. Sugar yield followed the same trends as in cane yield and varied significantly among genotypes within each crop cycle and among crop cycles from 7.49 tons in FR crop to 5.60 tons in SR crop.
Genotypic variance, heritability, and genotypic coefficient of variation (GCV) decreased from plant cane crop to second ratoon crop for stalk weight, stalk number, cane yield, juice purity, and sugar yield, while increased slightly for stalk diameter, sucrose content, and sugar recovery. The values of GCV and heritability of stalk number and cane yield indicated that the population offered considerable potential for improvement by selection, especially in plant cane. Analysis across crops showed that heritability, and GCV estimates for stalk length, stalk diameter, stalk weight, stalk number, cane yield, and sugar yield were smaller than of individual crops for the same traits, this is because the interaction variance (d2gc) was the predominant determining of phenotypic variance for these traits. Little change was observed in GCV for juice quality traits. The GCV values estimated in this study suggest selection to improve a particular crop's yield component value is most effective when performed within that crop and commonly shows the most potential for improvement in the younger crops.
Saccharum spp
crop cycle
Broad-sense genetic variance
genotype by crop interaction variance (2gc)
2009
06
01
6749
6761
https://jpp.journals.ekb.eg/article_118658_032d6ea817b43a1edb327902f7f34690.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
EFFECT OF GROWING MEDIA AND NITROGEN SOURCES ON GROWTH, ALKALOIDS CONTENT AND SOME CHEMICAL CONSTITUENTS OF CATHARANTHUS ROSEUS PLANT
A.
Khalil
A.
Gendy
E.
Hamad
E.
Ismail
This study was carried out during the two successive seasons of 2007 and 2008 at the Experimental Farm of El-Kassasin Horticultural Research Station, Ismailia Governorate, to detect the effect of difference media culture and nitrogen sources and ratios and their interaction on growth and alkaloid content of Catharanthus roseus. Periwinkle plants were grown in nine different media types with nutrient solution during drip irrigation. Nitrogen was applied as constant concentration of 200 ppm using three different ratios between ammonical nitrogen and nitrate nitrogen as 100% NH4 + 0% No3, 50% NH4 + 50% No3 or 0% NH4 + 100% No3. Whereas , different media types used were peatmoss , sand , clay , vermiculite, peatmoss: sand (1:1, v:v), peatmoss: clay (1:1, v:v), peatmoss: vermiculite (1:1, v:v), sand: clay (1:1, v:v) or sand: vermiculite (1:1, v:v). Generally , the combination peatmoss, peatmoss + sand or peatmoss + vermiculite medium and 0% NH4+100% No3 treatments were more effective in plant height, number of branches /plant fresh and dry weight of leaves/ plant, fresh and dry weight of plant , alkaloids content in leaves and chemical constituents in leaves0(N, T, K and nitrate).
2009
06
01
6763
6780
https://jpp.journals.ekb.eg/article_118659_78967d8016f53d3f8d3284a98e2b51d0.pdf
Journal of Plant Production
2090-3669
2090-3669
2009
34
6
THE RESPONSE OF Dendranthema grandiflora, TZVELEV, CV. ICECAP PLANTS TO CALCIUM SILICATE SLAG AND DHT TREATMENTS
M.
Abdalla
This experiment was carried out at the Experimental Station and in the Laboratory of Vegetable and Floriculture Department, Faculty of Agriculture, Mansoura University during the two successive seasons of 2006/2007 and 2007/2008 to study the effect of calcium silicate slag and the growth regulator DHT treatments on growth, flowering and chemical composition of Dendranthema grandiflora cv. Icecap plants.
The obtained results exhibited that the application of calcium silicate slag at 2.5, 5.0 and 7.5 g/pot and DHT at 0.1, 0.2 and 0.3% significantly improved the studied vegetative growth characters, flowering aspects and chemical composition of plants compared to the non treated ones in both seasons.
Regarding the effect of calcium silicate slag, the obtained data showed that
the maximum values for plant height, stem diameter, flower stem length and flower diameter were recorded on chrysanthemum plants treated with 5.0 g/pot. However, fertilizing the plants with 7.5 g/pot gave the highest values for number of branches/plant, herb dry weight/plant, number of flowers/plant, total flowers dry weight/plant, chlorophyll a, b and carotenoids content in the leaves, as well as, the uptake of phosphorus/plant.
The plants treated with DHT as a foliar spray at a concentration of 0.1% gave the best results in all investigated parameters in both seasons.
The combined treatment of 5.0 g/pot of calcium silicate slag plus spraying DHT at 0.1% gave the highest values of plant height, stem diameter, flower stem length and flower diameter. Similar effects on number of branches/plant, herb dry weight/plant, number of flowers/plant and total flowers dry weight/plant were recorded on chrysanthemum plants which received 7.5 g of slag material plus 0.1% DHT in both seasons. The great promotion on plant pigments and P uptake/plant was occurred on plants which received 7.5 g/pot calcium silicate slag plus 0.1% DHT.
From the previous results, it could be suggested to supply chrysanthemum cv. Icecap plants with 7.5 g/pot calcium silicate slag plus spraying them three times with 0.1% DHT for obtaining vigorous and healthy plants and for producing maximum flowering aspects.
2009
06
01
6781
6790
https://jpp.journals.ekb.eg/article_118660_f335620e608ccab9e6d3de44a4e2feec.pdf