2024-03-28T23:26:41Z
https://jpp.journals.ekb.eg/?_action=export&rf=summon&issue=12815
Journal of Plant Production
2090-3669
2090-3669
2012
3
11
USE OF GAMMA-RAY AND TWO OF CHEMICAL MUTAGENS TO INDUCE GENETIC VARIANCES IN TWO GARLIC CULTIVARS
A.
Hemada
S.
Ahmed
A.
Mohamed
This work was carried out in two winter seasons plantations of 2010 and 2011 on garlic at sids Horticulture Research, A. Research center Benisuif Governorate. which does not compose seeds under normal growing conditions to improve the crop by mutations breeding, clove seeds of two cultivars of garlic; Balady and Egaseed-1 were exposed, before planting, to five different doses of gamma-rays (1, 3, 5, 10 and 15 Gy). Also, the second part from the same clove seeds were treated with four levels of di–ethyel sulphate (DES) and di (2-chloro ethyel) amine (DEA) (0.05, 0.1, 0.2 and 0.3%).The effect of these treatments on some characteristics were evaluated in the first (M1V1) and second (M1V2) mutant–vegetative generation. Generally, it was found that, higher doses of gamma-irradiation decreased the studied growth, yield and its components, chlorophyll a, b and carotenoids when compared with the untreated plants in the two cultivars. The high concentrations of DES and DEA mutagens increased most of the studied characteristics in the M1V1 and M1V2 in both generations. In the mutants, low concentration of DES and DEA increased most of the studied characters in the M1V1 generation in both cultivars. The higher magnitudes of the range values in most of the evaluated characters such as number of cloves per bulb, bulb diameter, clove size and fresh and cured yield were detected, reflecting the genetic differences among the tested treatments for these characters in both cultivars. Based on the correlation studies, the improvement in number of leaves, plant height and bulb diameter will bring simultaneous improvement of garlic yield in both Balady and Eggaseed populations.
2012
11
01
2679
2698
https://jpp.journals.ekb.eg/article_85321_613d999fd81fb1e35617da9afc79e5c8.pdf
Journal of Plant Production
2090-3669
2090-3669
2012
3
11
EFFECT OF CERTAIN MICRONUTRIENTS ON SOME AGRONOMIC CHARACTERS, CHEMICAL CONSTITUENTS AND ALTERNARIA LEAF SPOT DISEASE OF FABA BEAN
U.
Abd El-Razek
Elham
Dorgham
S.
Morsy
To study the effects of foliar application with micronutrients on yield and yield components of faba bean (c.v. Misr 1), an experimental research was conducted in complete randomized block design by three replications during the two growing seasons of 2009/2010 and 2010/2011 in Etay El-Baroud Agricultural Research Station, El-Behera Governorate. Results shwoed that, spraying with Fe+Zn+Mn increased plant height, number of pods/plant, number of seeds/pod, number of seeds/plant, 100 seed weight and seed yield /faddan in the combined data. Also, chemical constituent, chlorophyll A, chlorophyll B, reducing sugars and the non reducing sugars significantly increased in all treatments spray with micronutrients compared with non-treated (control). Meanwhile, Altermaria leaf spot incidence on treated plants significantly decreased 18.2% - 60.5% compared with non-treated control plants.
2012
11
01
2699
2710
https://jpp.journals.ekb.eg/article_85323_07140788bba4c5064c6dfc3bab238405.pdf
Journal of Plant Production
2090-3669
2090-3669
2012
3
11
COWPEA (Vigna unguiculata L.) PRODUCTIVITY AS AFFECTED BY COMBINATION EFFECT BETWEEN SOWING DATES AND PLANT POPULATION
Fayza
Darwesh
Two field experiments were conducted during two growing seasons of2010 and 2011 at Kaha Horticulture Research Station (Qalubia Governorate) to study the effect of sowing dates and plant populations (density and distribution) on growth, dry seed production potentiality and its quality of cowpea cv. Kaha 1. The treatments consisted of combination between three times of sowing i.e. 1st May, 1st June; 1st July and six plant populations i.e. 20, 13 and10 plants/ m2, on one side per row, with 50 cm row spacing as well as 28, 20 and14 plants/m2, on two sides per row, with 70 cm row spacing. The experiment was laid out in split plot design with three replications.
Cowpea sown on 1st May recorded significant higher values of growth parameters i.e. plant height, number of leaves, number of branches, leaf area and dry weight/plant as well as seed yield and its components compared to the sown date of 1st July.
The results showed that high plant density recorded higher values for plant height and low values in the number of leaves, branches and leaf area in addition to the plant dry weight, while the results were just the opposite in the low-density.
The results showed that dry cowpea seed yield increased by increasing plant density, especially with the distribution plants on both sides of the width row. But there was a significant increase in the yield components by low number of plants per unit area.
The results showed that the interaction between sowing dates and plant density was significant for yield and its components and the highest values of dry seed yield resulted from sowing in 1st May with the number of plants, 28 plants per square meter and sowing on both sides of the row width of 70 cm.
2012
11
01
2711
2722
https://jpp.journals.ekb.eg/article_85329_9304a2819ca71281485b62889f572fc6.pdf
Journal of Plant Production
2090-3669
2090-3669
2012
3
11
ABOVE-GROUND BIOMASS AND SOME WOOD PROPERTIES OF 30- YEARS- OLD CHRYSOPHYLLUM OLIVIFORME AND TAMARINDUS INDICA TREES GROWN IN ASWAN, EGYPT
R.
Sayed
Aboveground-tree biomass and some wood properties (specific gravity, moisture content, extractive content, cellulose, hemicellulose, holocellulose and ash content) were measured in 30-year-old of two tree species: Chrysophyllum oliviforme L. and Tamarindus indica L., growing on infertile soils as single row at 5m spacing for each species in the Tropical Farm, Kom- Ombo, Aswan Botanical Garden. Biomass and wood properties of the two species were similar to those reported for other tropical tree plantations in the same region. T. indica had the highest accumulation of aboveground tree biomass, in term of stem fresh and dry weight, branches fresh weight, leaves fresh weight and total biomass. However, C. oliviforme had the highest average of specific gravity, cellulose, hemicellulose and holocellulose contents of wood, while T. indica had the highest wood moisture, extractive and ash contents. Moreover, regarding the effects of bole heights on wood constitutes, there were significant differences between height treatments on wood properties of the two species. Diameter at breast height (dbh) and 0.75 of the total height showed a high potential for producing a best wood constitutes due to its more even distribution in this heights compared to 0.25 or 0.50 of the total height .
Aboveground biomass
wood properties
Chrysophyllum oliviforme
Tamarindus indica
2012
11
01
2723
2732
https://jpp.journals.ekb.eg/article_85332_502bcd04603c01869a1eb70419f678ea.pdf
Journal of Plant Production
2090-3669
2090-3669
2012
3
11
WEED CONTROL IN GARLIC (ALLIUM SATIVUM L.)
A.
Hassanein
A.
Hemada
A.
Fadllalah
Two field experiments were conducted at Sids Horticulture Research Station, Beni Suef Governorate, Egypt, during the two successive seasons of 2009/2010 and 2010/2011.This study carried out to evaluate the efficiency of some chemical weed control treatments as pendimethalin(Stomp extra45.5%CSatrate at rate of 1.7 Liter/fed. ),butralin(Amex 48% EC at rate of 2.5 Liter/fed.) and fluroxypyr (Starane 20% EC at rate of 200 cm3/fed.) alone or with hand hoeing once or twice on weed, balady garlic yield and yield components and residues limits for herbicides.
The obtained results revealed that hand hoeing treatment at three times gave highest fresh and cured yield followed by treatments with Stomp extra 1.7 L. /fed.+ two hand hoeing and Starane 200 cm3 /fed.+ two hand hoeing. While the lowest values of fresh and cured yield were obtained from control (without) followed by Starane, Amex and Stomp extra alone. These results may be due to the better effect of hoeing on removing weeds than herbicides and poor effect of herbicides in killing the weeds specially when used alone.There are residual effects for using herbicides but there were below detection limit 0.01 ppm for butralin 48% at 2.5 L/ fed. & pendimethalin 45.5% at 1.7 L/fed. and 1.0 ppm for fluroxypyr 200 cm3 /fed. in cloves.
herbicides
hand hoeing
residues-Garlic
2012
11
01
2733
2746
https://jpp.journals.ekb.eg/article_85333_8b0c3a0deafbec0fd05f5edc56e832d7.pdf
Journal of Plant Production
2090-3669
2090-3669
2012
3
11
CULTIVATION OF Melissa officinalis ,L IN THE NORTH MIDDLE NILE DELTA REGION: A. EFFECT OF PLANTING AND HARVESTING DATES
Nahed
Rashed
Two field experiments carried out at Sakha Agricultural Research Station during the two seasons of 2008/2009 and 2009/2010 to study the effect of planting and harvesting dates on the growth ,yield and oil component of Melissa officinalis ,L .Two planting date , spring cultivation (11th March ) and autumn cultivation (24th October) in the two seasons and two harvesting date 1- spring cultivation, the first harvest was done in the middle of July and the second in the third week of October 2-autumn cultivation, the first harvest was done in the middle of June and the second in the first week of October in the two seasons .The obtained results showed that the favorable planting date in kafr El-sheikh Governorate is spring planting which produced significantly the highest plants, more branches ,increased leaf area , the heaviest weights of fresh and dry /plant and dry yield /fed, maximum chlorophyll a, b and total chlorophyll , increasing N,P and K% , oil % and oil yield/plant and /fed. Concerning essential oil constituents geranial (citral A) were the major component of spring oil followed by camphene .Meanwhile, neral (citral B) was the major component of autumn oil , followed by geranial (citral A).The second harvesting time gave better results in most parameters than the first harvesting time .From the obvious results we can conclusion to cultivate Melissa officinalis,Lin the spring and harvesting it after 219 day (Time of flowering).
Melissa officinalis
L
planting date
harvesting date
essential oil
Oil yield
2012
11
01
2747
2759
https://jpp.journals.ekb.eg/article_85336_5c62e5a222fe7c79aa77d739a97dc348.pdf
Journal of Plant Production
2090-3669
2090-3669
2012
3
11
EFFECT OF INORGANIC NPK FERTILIZER AND BIOORGANIC COMPOST ON GROWTH AND QUALITY OF NUMEX SAHARA BERMUDAGRASS (Cynodon dactylon (L.) Pers.) GROWN IN A SANDY SOIL
H.
AbdelKader
A.
Alhumaid
A field experiment was conducted during the two successive seasons 2007/2008/2009 and 2008/2009/2010 at the Agriculture Experimental Station of the College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Al-Qassim, Saudi Arabia. The experiment aimed to study the effects of mineral NPK fertilizer and incorporation of organic compost to the soil on growth and quality of NuMexSahara Bermudagrass (Cynodon dactylon (L.) Pers.) grown in a sandy soil throughout the year. Seeds were planted on September 15th of 2007and 2008 for the first and second seasons respectively. In treatments containing compost, compost was incorporated to the top 20 cm of the soil at two rates; 1 and 3 kg per square meter, before planting during soil preparation of the beds. Inorganic water soluble NPK fertilizer (14-38-10 +Mg +TE), was applied at three levels; low (100 g/m2/year ), medium (200 g/m2/year) ,and high (300 g/m2/year ). The mineral fertilizer was divided into four equal applications (after planting on February of the following year, May, September, and February of the next year). Data included turfgrass establishment (coverage) rate, clippings weight, turfgrass quality, root/shoot ratio, and chlorophyll content, carbohydrates, nitrogen, phosphorus, and potassium % in the clippings. Data showed that the earliest establishment of NuMexSahara Bermudagrass was achieved using high NPK (300 g/m2/year ) either alone or combined with 1 or 3 kg compost incorporated to the soil. These treatments also maintained turfgrass quality above the acceptable level throughout the entire season, including late fall and winter. The best results for growth, quality, and all previously mentioned measurements were obtained by applying 300 g/m2/year NPK fertilizer divided to 4 equal applications to Bermudagrass grown in the soil incorporated with 3 kg of the bioorganic compost during soil preparation.
2012
11
01
2761
2780
https://jpp.journals.ekb.eg/article_85337_d867dcdfb3421e4b7b8f306f4c81a319.pdf
Journal of Plant Production
2090-3669
2090-3669
2012
3
11
CULTIVATION OF MELISSA OFFICINALIS ,L IN THE NORTH MIDDLE NILE DELTA REGION: B. EFFECT OF PLANTING SPACES AND ACTIVE DRY YEAST
Nahed
Rashed
Two field experiments was established at Sakha Agricultural Research Station during the two seasons of 2008/2009 and 2009/2010 to evaluate the effect of planting spaces and active dry yeast on the growth ,yield and oil components of Melissa officinalis ,L .Three planting spaces (30, 40 and 50 cm) and four applications of active dry yeast (control, 5, 10 and 15gm / l) were used in the two seasons. The obtained results showed that wider plant spacing showed the greatest effect on growth parameters and chemical constituents. Similarly, active dry yeast levels had a promoting influence on most of the vegetative growth parameters and accelerated essential oil accumulation and chemical constituents including chlorophyll a ,b and total content and N,P and K%. The wider space between plants (40 or 50 cm) combined with maximum rate of dry yeast (10 or 15g/ l) had a favorable effect on the most growth characters and chemical constituents. The main constituent of the essential oil was, geranial (citral A) followed by camphene. Generally, it can be concluded that there is no significant difference between wider distance (50 cm) and medium one (40 cm) and rate of dry yeast (10 and15g/ l).So, it can be recommended to cultivate at distance of (40 cm) combined with applying (10 g/ l) of active dry yeast.
Melissa officinalis
L
planting date
harvesting date
essential oil
Oil yield
2012
11
01
2781
2798
https://jpp.journals.ekb.eg/article_85339_9801941366bd52edc3558f65e75eab7d.pdf
Journal of Plant Production
2090-3669
2090-3669
2012
3
11
EFFECT OF SALINE IRRIGATION WATER ON SOME SOUR ORANGE RACES.
Somaia
El-Sayed
H.
Ennab
Seedlings of Brazilian, Spanish and Balady sour orange rootstocks were studied for their tolerance to five salinity levels : tap water (control), 1000, 2000, 3000 and 4000 ppm of NaCl, CaCl2 and MgCl2 .. All growth parameters of Balady, Brazilian and Spanish seedlings measured were significantly affected by salinity levels. Brazilian sour orange seedlings gave the highest values of all growth parameters such as stem length and diameter, leaf number per plant, leaf area and dry weight of top and roots followed by Balady sour orange and Spanish seedlings, respectively. Chlorophyll a, b and its total value decreased as salinity increased in irrigation water. In contrary, free proline amino acid, soluble and non soluble sugars were increased with increasing saline water. Moreover, Brazilian rootstock had higher amount of chlorophyll, proline and soluble and non soluble sugars than those recorded for Balady and Spanish rootstocks. On the other hand, leaf tissue analysis showed that increasing the salinity level in irrigation water caused a significant increase in N, Ca, Mg, Na, Cl and Fe values, but decreased content of P, K, Mn, Zn and Cu . Moreover, root Ca, Mg, Na, Cl, and Fe, contents were increased with increasing salinity level, while, N, P, K, K, Mn, Zn, and Cu values were decreased . Brazilian seedling tended to contain the lowest Na, and Cl concentrations when compared with those of both Spanish and Balady seedlings . This may be explain why Brazilian is the most tolerant rootstock to salinity .there for, The three rootstocks can be arranged in the following descending order due to their salt tolerance: Brazilian> Balady> Spanish.
2012
11
01
2799
2816
https://jpp.journals.ekb.eg/article_85341_386503b6dc8eae363cae62a9db1f437d.pdf
Journal of Plant Production
2090-3669
2090-3669
2012
3
11
EFFECT OF SOME COMPONENTS OF VOLATILE OILS, SODIUM CARBONATE AND BICARBONATE FOR CONTROLLING BLUE AND GREEN MOLDS OF Lime (Citrus aurantifolia) FRUITS DURING STORAGE
Shadia
Abd-El-Aziz
A.
Dewidar
Blue and green molds caused by Penicillium italicum Wehmer and Penicillium digitatum Sacc. are the most important diseases affecting lime fruits. Some component of volatile oils i.e. limonene, linalool, citral and nerol were extracted from orange peel, coriander seed, lemon grass and petitgrain (Bitter orange) respectively, and were tested for their effect on linear growth of P. italicum and P. digitatum. Nerol and citral at 0.4% showed 100% reduction of linear growth. Sodium carbonate (SC) and sodium bicarbonate (SBC) showed complete inhibition on linear growth of the tested fungi at the concentration 2.0%.
Effects of citral and SC or SBC singly or in combination for controlling blue and green molds of lime fruits were studied. The most effective treatments were the combined treatments between citral at 0.5% and SC or SBC at 2.0% which completely inhibited disease severity for blue and green molds of lime fruits under artificial infection and during storage for three weeks at 13± 1°C. However under natural infection, the combined treatments with citral at 0.5% and SC or SBC at 2% completely inhibited percentages of infection during storage for three weeks. All treatments decreased the loss of fresh weight of lime fruit and vitamin C content but total soluble solids increased.
Blue mold
green mold
lime fruits
some component of volatile oils
sodium carbonate and bicarbonate
2012
11
01
2817
2830
https://jpp.journals.ekb.eg/article_85343_7ec02531e590a81ae00e907b75ad321a.pdf
Journal of Plant Production
2090-3669
2090-3669
2012
3
11
الإستفادة من المخلفات الزراعية بمزرعة کلية الزراعه جامعه المنصوره بتحويلها إلى أسمدة عضوية وأعلاف حيوانية
أحمد
عطيه
2012
11
01
2831
2842
https://jpp.journals.ekb.eg/article_85345_88958a6f390928562de43d1fad608222.pdf
Journal of Plant Production
2090-3669
2090-3669
2012
3
11
EFFECT OF IRRIGATION TREATMENTS OF YIELD AND QUALITY ON SOYBEAN AND MAIZE GROWN UNDER DIFFERENT INTERCROPPING PATTERNS
A.
Abou-Elela
Two field trials were conducted in 2010 and 2011 to determine the effect of regimes irrigation on yield and its components for the maize-soybean intercropping patterns. The experimental was based on split plot in a randomized complete block design with three replications. The main plots consisted of three different irrigation regimes,(I1 )irrigation during all groth stage as control treatment,(I2) withholding irrigation at the flowering stage and (I3) withholding irrigation at the pod stage. The sub-plots included three intercropping patterns( T1)=growing soybean on both sides of beds (140 cm) and planting one row of maize on the back of the bed (50cm between hills,1 plant) ,(T2)=growing soybean on both sides of beds and planting one row of maize on the back of the bed and leave another bed (50cm between hills, 2 plants) and( T3)= growing soybean on both sides of beds and planting one row of maize on back of the bed and leave another bed (25cm between hills, 2plants) Data showed that:
1- Whole irrigation gave the highest yield and yield components of maize/soybean intercropping. Whereas, withholding irrigation at the early flowering stage gave the lower yield and yield components.
2- Intercropping maize with soybean surpassed yield and yield components when used all beds, 50 cm between hills and left one plant /hill.
3- Interactions effect of irrigation x intercropping on maize indicated that, the treatments of I1 X T1 gave the highest values for all traits studied, whereas, the lowest value was recorded with I2 x T3.
4- Results showed that, Land Equivalent Ratio was the highest with the treatment of I1 x T1 (1.24, 1.16 and 1.20) in both seasons and the combined analysis, respectively, also, the same interaction recorded the highest net return (3303.07, 2750.35 and 3026.71) in both seasons and the combined analysis,respectively.
Soybean
Intercropping
Maize
irrigation regimes
2012
11
01
2843
2856
https://jpp.journals.ekb.eg/article_85346_65138c98bdd85f7a1b7990c1091d5f6b.pdf
Journal of Plant Production
2090-3669
2090-3669
2012
3
11
LINE × TESTER ANALYSIS FOR COMBINING ABILITY AND HETEROSIS IN TOMATO UNDER LATE SUMMER SEASON CONDITIONS
T.
Shalaby
Combining ability and heterosis were studied in a line x tester cross in tomato (Solanum lycopersicum L.) during 2008 to 2010 at the Experimental Farm, Horticulture Department, Faculty of Agriculture. The experimental materials comprised four lines (females), viz., CLN 2123, CLN 2400A, CLN 2498E, CLN 2400B and two testers (males), viz., peto86, CastleRock and 8F1s obtained from the crossing testers with each line. Analysis of variance revealed highly significant differences among all the F1 hybrid means and their respective six parental values for all examined traits. Positive heterosis over better parent was observed in some crosses for most of studied characters except average fruit weight, which had negative values. Heterosis over better parent ranged from 12.7 to 66.2 for total yield. The mean squares due to general combining ability (GCA) and specific combining ability (SCA) were also highly significant. Among parents, peto86 and CLN2498E proved the best combiners for plant height, fruit set. The parents Peto86 and CLN2400A were the best combiners for early and total yield. While, CastleRock cv. was the best combiner for average fruit weight and fruit firmness. The best specific cross combinations were CastleRock x CLN 2123, CastleRock x CLN2400B, Peto 86 x CLN2400A and Peto 86 x CLN2498E for total yield per plant.
Solanum lycopersicum L
Combining ability
Heterosis
Late summer season
2012
11
01
2857
2865
https://jpp.journals.ekb.eg/article_85348_fd631e35e035ffe454797338c77efab6.pdf
Journal of Plant Production
2090-3669
2090-3669
2012
3
11
GENETIC VARIABILITY, CORRELATION AND PATH COEFFICIENT ANALYSIS FOR YIELD AND SOME YIELD-RELATED TRAITS FOR SOME GENOTYPES OF RICE.
S.
Hammoud
I.
EL-Degwy
M.
EL-Habashy
S.
Sedeek
The current study was carried out at Rice Research and TrainingCenter, Sakha, Kafr El-Sheikh, Egypt during the two successive seasons; 2011 and 2012. It aimed to investigate the performance of fourteen rice genotypes, including six newly elite lines, as well as seven commercial rice varieties to estimate the genetic parameters i.e. phenotypic, genotypic coefficients of variations, heritability and genetic advance from selection, to estimate the type and magnitude of associations among yield and thirteen yield-related characters. These characters were measured as phenotypic correlation as well as using path coefficients to detect the contributions of different traits to yield variations. Significant differences were detected among rice genotypes for all studied traits. The estimates of grain yield were highest in case of Giza 178 and Sakha 101 rice cultivars. Rice lines involved in this study recorded reliable estimates for yield components but, the lack of their yields may be due to high infestation by the rice stem borer. The genetic variance was highly significant for all the studied traits, indicating a wide range of genetic variability. Dead heart and white head percentages exhibited the highest phenotypic coefficients variability and genotypic coefficients variability estimates, indicating large variations among the tested rice genotypes in such traits. High heritability estimates coupled with high genetic gain were recorded for dead heart and white head. High heritability estimates coupled with moderate genetic gain were recorded for flag leaf area, no. of filled grains/panicle, no. of spikelet's/panicle and grain yield. Grain yield was significantly correlated with no. of tillers/panicle (0.556) and no. of panicles/plant (0.49). Strong positive associations were recorded between plant height and each of heading date, flag leaf area, dead heart and white head while, no. of panicles/plant had significant positive correlation with No. of tillers/plant(0.83), third internode length (0.39) and grain yield (0.49). Path coefficients analysis indicated that no. of spikelets/panicle followed by flag leaf area, no. of tillers/plant, heading date and panicle length had desirable direct effects on grain yield variations. While, white head percentage and no. of filled grains panicle played an important role on the genotypic variations of no. of tillers/panicle. From the previous results, it is evident that the five aforementioned characters could be used as selection criteria to improve grain yield.
2012
11
01
2867
2882
https://jpp.journals.ekb.eg/article_85352_bf44f24f4de0415a7eae1f097d92fc0d.pdf
Journal of Plant Production
2090-3669
2090-3669
2012
3
11
IMPACT OF SALINITY AND BIOLOGICAL AND ORGANIC TREATMENTS ON GROWTH, YIELD AND FRUIT QUALITY OF SWEET PEPPER
Doaa
Mostafa
K.
Nour
Two pots experiments were carried out during summer seasons of 2011 and 2012, in order to study the effect of irrigation with sea water mixed with fresh water at different levels of NaCl (0.0, 1000, 2000 and 3000 ppm) and application of humic acid at 2cm3/l, halex-2 at 2gm /l and the combination between them as well as control (without) and their interactions on vegetative growth characters, leaf pigments, yield and its components, fruit quality and leaf chemical constituents of sweet pepper plants (Capsicum annuum L.). cv. Spanish pepper. Vegetative growth characters,i.e plant height, number of branches, leaf number, dry weight / plant, leaf area/plant, fruit yield and its components parameters and TSS in fruit juice were significantly decreased by increasing NaCl level in the irrigation water from control up to 3000 ppm while, irrigation with 2000 ppm gave the highest values of K percentage on fruit. On the other hand, 3000 ppm NaCl resulted in the highest values of titratable acidity and proline contents in the leaves.
Treating sweet pepper plants with the combination between halex-2 at 2 gm/ l and humic acid at 2cm3 / l recorded the highest values of all studied growth characters, average fruit weight, early yield, total yield TSS and nitrogen percentage followed by humic acid at 2cm3 / l with non significant differences between both treatments while, treating plants with halex-2 at 2gm/l recorded the highest values of phosphorus percentage.
Zero Nacl in combination with humic acid at 2cm3 / l singly or with halex-2 at 2 gm/ l caused a stimulatory effect on most of the studied characters of sweet pepper plants. Meanwhile, the same treatments recorded the lowest values of TSS in pepper. On the other side, the interaction between NaCl at a rate of 3000 ppm in the irrigation water without adding halex-2 or humic acid (control) recorded the lowest values of all studied growth characters, yield and its components and fruit quality.
sweet pepper
salinity
Halex-2
Humic acid
Growth
yields
2012
11
01
2883
2902
https://jpp.journals.ekb.eg/article_85353_33ca95710c4d0bcba97fcc6c308318c6.pdf
Journal of Plant Production
2090-3669
2090-3669
2012
3
11
EFFECT OF SOURCE , RATE AND APPLICATION TIME OF NITROGEN FERTILIZER ON SUGAR BEET
M.
Elsonbaty
G.
Abdel - Hay
E.
Nemeat–Alla
E.
El-Tahawey
The present investigation was conducted at El-Hamoul area, Kafr El-Sheikh Governorate, Egypt during 2000/2001 and 2001/2002 seasons, to study the effect of three nitrogen sources (urea 46% N, ammonium nitrate 33.3%N and ammonium sulphate 20%N), two rates (60 and 90 kgN/fed) and three application time of nitrogen (All nitrogen rates of the three sources were applied at 40 or at 70 days from sowing and splitted into two equal half the first applied at 40 and the second at70 days after sowing)on growth, yield and quality of sugar beet, cultivar Top poly.The experiments were carried out in randomize complete block design in factorial arrangement with three replications.
The obtained results showed that the effect of nitrogen sources was significant on root length , root fresh weight, sucrose %, root yield/ fed and sugar yield /fed in both seasons. Ammonium nitrate gave the highest values of all previously mentioned traits as compared with other studied sources in both seasons.
The obtained results showed that the effect of nitrogen rates was significant on all studied traits in both seasons. Applied nitrogen fertilizer at the rate of 90 kgN/fed surpassed 60kgN/fed in all studied characters in both seasons.
The obtained results indicated that the effect of nitrogen application time was significant on all studied traits in both seasons, except sucrose% in 2001/2002 season. Splited nitrogen fertilizer into two equals half an added at 40 and 70 days from sowing gave the highest values of all studied traits in both seasons.
The results presented exhibited that all the interaction effects between the three studied factors were significant on root fresh weight in both seasons. The interaction effect among sources and application time of nitrogen and the interaction effect among rates and application time of nitrogen were significant on root and sugar yield/fed in both seasons.
2012
11
01
2903
2912
https://jpp.journals.ekb.eg/article_85354_d0d1e2b1ac10ddb3ab795a244d53f250.pdf
Journal of Plant Production
2090-3669
2090-3669
2012
3
11
IDENTIFICATION OF SOME WIDELY COMPATIBLE RESTORER LINES USING TESTCROSS AND SSR MARKERS
R.
El-Namaky
Hybrids between distantly related high yielding varieties are most promising. Discovery and exploitation of widely compatible varieties provide a possibility for the utilization of heterosis between Indica and Japonica types. Investigation was carried out at the farm of Rice Research &Training Center (RRTC), Sakha Kafr El-Sheikh, Egypt from 2008 at 2010. To evaluate the presence of restorer and wide compatibility genes for 85 lines of F5 developed from the cross between Giza178 and Dular. Six SSR markers were used to detect the presence of restoring ability (Rf) and wide compatibility (WC) genes. A total of 19 lines selected by SSR markers were crossed as male (testers) with two Indica cytoplasmic male sterile lines (IR58025A and IR69625A) and two Japonica CVS; Sakha101 and Giza177 as female parents to produce 76 F1 hybrids seeds according to 4 x19 Line x Tester fashion. Results of SSR markers indicated that Dular variety had two alleles (S-5 and S-8) for wide compatibility (WC) While, Giza178 had two Rf alleles; Rf-3 and Rf-4. However, the selected lines from F5 generations holded at least one Rf allele either Rf3 or Rf4 and one WC allele either S-5 or S-8. Some lines had the four alleles, two alleles (Rf3 and Rf4) for restoring ability, and two alleles (S-5 and S-8) for wide compatibility. All 19 testers showed high pollen and spikelets fertility% (more than 80%) with Japonica testers, Sakha101 and Giza177 while, 13 lines showed pollen and spikelets fertility more than 80%. with Indica CMS lines (IR58025A and IR69625A). These results indicated that WC alleles and restoring ability alleles (Rf) are present in these lines and these lines can be used to produce Indica/ Japonica hybrids. For heterosis of grain yield plant-1, most of crosses exhibited significant heterosis with positive values ranged between 17.31 and 59.34 %.
Heterosis
rice
Hybrid
wide compatibility
restoring ability and CMS
2012
11
01
2913
2926
https://jpp.journals.ekb.eg/article_85355_4ac6047c8ca4cc391d1b7d1313cf7a5f.pdf