2024-03-29T17:09:25Z
https://jpp.journals.ekb.eg/?_action=export&rf=summon&issue=12895
Journal of Plant Production
2090-3669
2090-3669
2011
2
7
EVALUATION OF FODDER YIELD AND ITS QUALITY OF BARLEY AND RYEGRASS SOWN ALONE OR INTERCROPPED WITH BERSEEM CLOVER
Amal
Helmy
Wafaa
Sharawy
Hoda
Ibrahim
Two field experiments were conducted at Sids Experimental Agricultural Research Station, (ARC), in 2006/2007 and 2007/2008 seasons to (i) evaluate the performance of two varieties of barley as a multicut forage crop either in pure stand or intercropped with berseem and (ii) comparing berseem, barley and ryegrass as sole crops or intercropped to determine the best grass- legume combination for maximum yield and better forage quality. Total fresh forage yield of pure stand ryegrass was superior to those of barley cv. Giza 123 and barley cv. Giza 2000 by 13.61 and 15.03 t fed-1, respectively. Barley cv. Giza 123 outyielded Giza 2000 by 1.42 t fed-1. Total fresh forage yield of intercropped berseem with barley cv. Giza 123 surpassed those of berseem + barley cv. Giza 2000 and berseem in pure stand by 10.8 and 11.4 percent, respectively. Total fresh forage yield of berseem + ryegrass was lower by 3.96 t fed-1 than that of berseem + barley cv. Giza 123, but higher by 1.27 and 1.49 t fed-1 than those of berseem + barley cv. Giza 2000 and berseem in pure stand, respectively. Barley cv. Giza 123 was better companion with berseem than cv. Giza 2000. Ryegrass showed better stand persistence and duration than the barley. Total dry forage yield followed the same trend of fresh forage yield, but the magnitude of difference was greater. Intercropping of berseem with forage grasses lead to improve forage quality through balancing crude protein (cp), Total Digestible Nutrients (TDN) and Ca/P ratio. It could be concluded that to maximize forage yield and its quality per unit area by intercropping barley cv. Giza 123 and Egyptian clover 50%:50%.
berseem
Egyptian clover (Trifolium alexanderinum
ryegrass (Lolium multiflorum
barley (Hordeum vulgare
L.)
forage intercropping
Quality
2011
07
01
851
863
https://jpp.journals.ekb.eg/article_85620_150e408caed36621dc91e5b478cfe576.pdf
Journal of Plant Production
2090-3669
2090-3669
2011
2
7
THE PRODUCTIVITY OF GARLIC PLANT (Allium sativum, L.) AS AFFECTED BY PLANT DENSITIES AND NPK APPLICATION
Z.
El-Shal
E.
Radwa
M.
Zaki
Fatma
Rizk
Two field experiments were carried out during the two successive seasons of 2008/2009 and 2009/2010 at the horticulture experimental station of the Egyptian agricultural Ministry at Baramon Experimental Farm, Dakahlia Governorate, Egypt. The aim of these experiments were to study the effect of 3 plant densities (one, two and/or three lines/ridges) and 3 NPK fertilizer rates (control, 90 : 90 : 90 and 120 : 120: 120 units/fed., respectively on garlic plant growth characters, head yield and its some physical properties as well as the chemical constituents of garlic cloves.
The important obtained results could be summarized as following:
- Close spacing gained the shortest plant height, which carried the less leaves number and less fresh and dry weight of whole garlic plant and its different organs. On the contrary, the heaviest total garlic yield as tons/fed., with the lowest bulb diameter and lowest values of protein, N, P, K, Fe, Mn, Zn and Cu, all of them recorded with close plant densities (3 lines / ridge).
- Increasing NPK rate for garlic growing resulted the vigor plant growth, the heaviest tonnage yield per fed., the highest garlic head and the highest nutritional values if compared with the lowest NPK rates.
- Growing garlic plants at wide plant density, and applying the higher NPK rate resulted the most vigor plant growth character. The heaviest garlic yield gained with close plant spacing and applying the highest NPK rate, but the lowest nutritional elements vales recorded with close plant spacing (3 lines / ridge) and no NPK addition.
2011
07
01
865
875
https://jpp.journals.ekb.eg/article_85621_d6e03e7c9a32a6733af399fc483bfca1.pdf
Journal of Plant Production
2090-3669
2090-3669
2011
2
7
EFFECT OF POTASSIUM FERTILIZATION AND HUMIC ACID APPLICATION ON PLANT GROWTH AND PRODUCTIVITY OF POTATO PLANTS UNDER CLAY SOIL
E.
Radwan
Z.
El- Shall
R.
Ali
This experiment was carried out during the two successive summer seasons of 2008 and 2009 at Private Farm in El-Mahala El-Kobra region Ghrabia Governorate, on potato plant cv. Diamant to study the effect of potassium rates ( 0,50 and 100 kg K2O/fed) and humic acid as soil application ( 0, 2 and 4 kg/fed. as humate potassium) as well as their interactions on growth, nutrition status and productivity of potato under clay soil.
Application of 100 kg K2O/fed. was the superior treatment for enhancing dry weight of straw and tubers, percentage of N,P and k and total uptake by plant as well as total yield/fed.
Treated of potato plants with humic acid at 4 kg/fed. gave the maximum values of plant growth and plant nutritional statues as well as yield and its components with significant differences with 2 kg / fed. with respect to N,P and K (%) and yield and its components.
The best interaction treatment for increasing yield and its components was obtained by fertilization of potato plants with 100 kg K2O / fed. and treated of plants with 2 kg /fed. humic acid.
potato
potassium
humic acid and yield and its components
2011
07
01
877
890
https://jpp.journals.ekb.eg/article_85622_6ee03053494ddd1cc30e3578c3609c1c.pdf
Journal of Plant Production
2090-3669
2090-3669
2011
2
7
INCREASING SALINITY TOLERANCE OF EGGPLANT UNDER RAS SUDR CONDITIONS
I.
El-Hifny
A.
Almahdy
The field experiment was carried out during the two summer successive seasons of 2008 and 2009 at the Experimental Station of Desert Research Center, at Ras Sudr, South Sinai Government, on White Balady eggplant to compare between the effect of saline irrigation water at levels of 3500 and 4500 ppm, with the effect of some compound applications (Algreen and Mega pour were applied as foliar spray in concentration of 2.5 cm3/h. and 0.75 cm3/L. respectively) also, they were added as soil addition at rate of 1.5L. and 0.8L./Fed. respectively, after 3, 6 and 9 weeks from transplanting, while the Unisal was applied as soil addition before transplanting at rate of 4 L./Fed., as well as, control treatment compound.
The obtained results indicated that level saline irrigation water at 3500 ppm level showed increment in growth characters when compared to 4500 ppm saline irrigation water level. The same trend was observed with yield and its components (total yield, number and weight of fruits/plant, average fruit weight, diameter and length). Also, N, P, K and chlorophyll values showed the same line of previous characters, while, Fe (in fruits), Na and Cl (in leaves) contents were increased with saline irrigation water at 4500 than 3500 ppm level.
The application of the tested compounds enhanced plant growth, yield and its components, N, P, K and chlorophyll values in plant leaves than control treatment. On the other hand Na, Cl and Fe content were increased in plant leaves and Fe value in fruits were the highest in control treatment than compound treatments.
The best growth characters, heaviest yield and the best characters of yield components, as well as the highest values of N, P, K and chlorophyll content and the lowest values of Fe (in fruits), Na and Cl content (in plant leaves) were recorded with saline irrigation water at level 3500 ppm and Algreen compound followed by Mega pour both applied as foliar spray.
Eggplant
salinity
Algreen
Megapour
unisal
2011
07
01
891
905
https://jpp.journals.ekb.eg/article_85624_584287bb46755c6a67d23c7ea6181475.pdf
Journal of Plant Production
2090-3669
2090-3669
2011
2
7
EFFECT OF SOME MINERAL AND ACID FERTILIZERS ON SWEET PEPPER PRODUCTIVITY AND QUALITY UNDER RAS SUDR CONDITIONS.
A.
Almahdy
I.
El-Hifny
The field experiment was carried out in the Experimental Farm of the Desert Research Center at Ras Sudr Region, South Sinai Governorate, during the two successive summer seasons of 2008 and 2009 to study the effect of the combinations among three levels of N, P, K (100%, 80% and 60% of recommended dose) with nitric or phosphoric acids individually or mixture of them to minimizing the harmful effects of salinity on growth, yield and fruit quality of sweet pepper plants. The results suggested that the effect of the highest level of N, P, K (100%) combined with mixture of nitric and phosphoric acids gave the most vigorous plants expressed as plant length, fresh and dry weight of plant and dry matter content of plant, in both seasons. Moreover, it produced the highest fruit yield and gave, the best physical properties of fruits, i.e., fruit length, weigh and number of fruits/plant, as well as the best values of total chlorophyll, vitamin C, N, P, K of leaves tissues. On the other hand, it decreased Na and Cl concentrations.
sweet pepper
Salinity N
P
K rates
nitric and phosphoric acid application fertigation fertilizers method
2011
07
01
907
918
https://jpp.journals.ekb.eg/article_85625_c84656a53702580b7896c0c8b84d3fea.pdf
Journal of Plant Production
2090-3669
2090-3669
2011
2
7
EFFECT OF ANTIOXIDANT TREATMENTS ON BEHAVIOR OF "ZIBDA" MANGO FRUITS CV. (Mangifera indica L.) AT POST-HARVEST AND SHELF LIFE DURING COLD STORAGE.
L.
Samaan
E.
El-Dengawy
Heba
El-Fayoumy
Mango fruits of “Zibda” cv. were harvested at mature green stage from 20-years-old trees grown in a private orchard in two successive seasons of 2008-2009.The effect of post-harvest antioxidant treatments on changes of physical and chemical characteristics were studied during cold storage at 5±1°C and 80-85% RH for 30 days. Pre-storage tested fruits were soaked in vitamin C solutions at 0.5 and 1.0 gL-1 or vitamin B12 solutions at 0.5 and 1.0 mgL-1 for 12 hr. Changes on these characteristics were determined on stored fruits at 5-day-intervals.
Results of changes in the tested physical and chemical parameters almost indicated an obvious gradual decrease on fruit firmness, fruit juice vitamin C and acidity% along with fresh peel chlorophyll contents as cold storage period advanced. On the other hand, Fruit weight loss%, fruit juice TSS%, TSS/acid ratio and total sugars along with fresh peel β-carotene content were gradually increased as cold storage period advanced. The rates of such decrease or increase were differed due to the tested antioxidant treatment, concentration and parameter.
As for changes of chilling injury incidence “CI”, the results revealed that the first observation of “CI” symptoms was at the15th day measurement and then an obvious gradual increase on calculated “CI” index of all the post-harvest treated and stored fruits till the end of cold storage period. Vitamin C treatments with either 0.5 or 1.0 gL-1 "T1" and "T2" was the best ones to calculate the fewest index values (reduce “CI” incidence).
2011
07
01
919
933
https://jpp.journals.ekb.eg/article_85626_5742ecdd4ce1a47da620eaae1ca945b5.pdf
Journal of Plant Production
2090-3669
2090-3669
2011
2
7
USING DIFFERENT SOURCES OF COMPOST TEA ON GRAPES
M.
Mostafa
E.
El-Baz
A.
Abd El-Wahab
Asmaa
Omar
The present investigation was carried out during 3 successive seasons from 2008 to 2010. The work in the first year was considered as a preliminary trial. This investigation was conducted on 14-year-old King Ruby grapevines cultivar growing at a private vineyard called Chycheny located at meniet samanood village near Mansoura city, Dakahlia Governorate, Egypt. The study aimed to evaluate the effect of different sources of compost tea with or without citric acid on vegetative growth, leaf mineral content, physical and chemical characteristics of clusters and berries, yield and pruning wood weight.
Most tested treatments gave generally a significant increase of different studied parameters especially in the second season of study, where, T7 (compost tea A + compost tea B + citric acid) gave the highest significant increase in shoot length and total chlorophyll content (112.1 - 144.6 cm), (1.013 - 0.957 mg/g F.W.) as compared with that of control (91.2 - 112.6 cm), (0.923 - 0.695 mg/g F.W.) in 2009 and 2010 seasons, respectively. In addition, T7 gave a significant increase of NPK content in the leaf petioles (2.94 and 2.72 N %), (0.43 and 0.43 P%) and (2.11 and 2.12 K%) as compared with that of control (2.39 and 2.37 N%), (0.27 and 0.27 P%) and (1.16 and 1.17 K%) in 2009 and 2010 seasons, respectively. Also, this treatment gave a pronounced increase in yield/vine (15.90 and 12.00 kg/vine) as compared with that of control (9.03 and 8.07 kg/vine) in 2009 and 2010 seasons, respectively. Same treatments gave higher increase in the total sugars and total anthocyanin content in berry skin (17.133 – 17.577 %), (45.85 – 50.14 mg/100g) as compared with that of control (14.19 and 14.56 %), (23.52 and 23.08 mg/100g) in 2009 and 2010 seasons, respectively. Also, T7 gave the highest values on weight of pruning wood at winter season (2.63 and 2.83 kg/vine) comparing with control (2.17 and 1.78 kg/vine) in 2009 and 2010 seasons, respectively.
2011
07
01
935
947
https://jpp.journals.ekb.eg/article_85627_246c46e1a33f9e77adce820d4421fcff.pdf
Journal of Plant Production
2090-3669
2090-3669
2011
2
7
REGULATION OF GLUCOSE-6-PHOSPHATE DEHYDROGENASE IN PLANTS (REVIEW ARTICLE)
A.
Elhefny
A.
Kuliyev
S.
Gyulakhmedov
The regulation of G6PDH has been studied in plants, eukaryotic algae and cyanobacteria, but the gene encoding G6PDH has been isolated from only a few of these sources. In plants, Glucose -6-phosphate dehydrogenase (G6PDH) is present in the cytosol and in plastids. High sugar levels in the cytosol results in higher enzyme levels and G6PDH activity. In contrast, plastidic G6PDH can be stimulated by low NADPH to NADP+ ratios and is restricted by reductive inactivation. Both isoforms are feedback inhibited by NADPH.
2011
07
01
949
957
https://jpp.journals.ekb.eg/article_85628_107dc4a76318ab01aac3746e374e45c2.pdf
Journal of Plant Production
2090-3669
2090-3669
2011
2
7
EFFECT OF HARVESTING DATES AND STORAGE PERIOD ON SEED YIELD AND SEED QUALITY OF CANOLA (Brassica napus, L.)
I.
Mersal
Abeer El-Ward
Ibrahim
F.
Yousof
Stage of seed development at harvest time influence both of canola seed yield and seed quality after harvest as well as seed storability. Two field experiments were conducted at the Farm of El-Serw Agricultural Research Station during 2007/2008 and 2008/2009 seasons, while storage study was conducted at Seed Technology Unit Lab. (ARC) Mansoura, Dakhlia Government, under normal conditions during 2008/2010 and 2009/2011 seasons (from 31 July 2008 till 31 January 2011). The aim of this study was to investigate the effect of four harvesting dates i.e. 75, 82, 89 and 96 days after beginning of flowering on seed yield and seed quality, directly after harvest as well as after 6 and 18 months from storage. The results revealed that harvested canola seed early after 75 days from beginning of flowering had low seed yield and slight 1000-seed weight, high seed moisture contents. Prolonging harvesting date increased seed yield/plant, 1000-seed weight, germinability as measured by (germination percentage, accelerated after seed aging and germination rate) and seedling vigor as measured by (seedling length, seedling dry weight). Meanwhile, increasing the period from beginning of flowering to harvest decreased seed moisture content, mean germination time and electrical conductivity of seed solution. On the other hand, increasing storage period reduced germinability and seedling vigor. Meanwhile, increasing storage period increased mean germination time and electrical conductivity of seed solution. In conclusion, Under the experiment conditions seed yield and seed quality characters can be achieved through harvesting canola seed var. (Serw 4) after 82 to 89 days from beginning of flowering.
2011
07
01
959
969
https://jpp.journals.ekb.eg/article_85629_5e69ba47d1f680bf4efb2a41a88f7992.pdf
Journal of Plant Production
2090-3669
2090-3669
2011
2
7
INFLUENCE OF ANTIOXIDANTS PRE-SOWING ON BIOCHEMICAL AND SEED VIGOR OF SOME RICE (Oryza sativa, L.) VARIETIES UNDER SALINITY
Amal
El-Manzlawy
Abeer El Ward
Ibrahim
A new protein bands and Esterase banding pattern could be used as a biochemical marker for selecting tolerant rice cultivars to be grown under salt conditions, and, treatment rice seed with ascorbic and salicylic acids greatly alleviate the harmful effect of salt stress on rice plant. In this study, three ric cultivars (Giza 177, Sakha 103 and Sakha 104) were selected to determine the interactive effects of salinity (0.4 and 10 ds/m) ,ascorbic and salicylic acids on Esterase isoenzymes , pattern protein synthesis and seed vigor. Laboratory experiment was conducted at Seed Technology Research Department during 2010 year. The results revealed that one new band (Est 3 isoenzyme) was detected of both Giza 177 and Sakha 103 cultivars (untreated seed) under salt stress. Salinity treatments induced synthetic 3 and 2 new protein bands of Giza 177 and Sakha 103 (untreated seed), respectively. No new bands were obtained of Sakha 104 (untreated seed). Protein with molecular weight of 49 KD could play an important role in triggering a system to tolerate sever stress of salinity. Treatments of seeds of Giza 177 and Sakha 103 cultivars with salicylic or ascorbic acid induced one Esterase3 isoenzymes (RF 0.9). Three unique bands were observed under salinity with molecular weight 86, 93 and 132 KD of (Giza 177 + salicylic), (Sakha 103 +Ascorbic) and (Sakha 104+Ascorbic), respectively.
It could be summarized that only under saline conditions, Pre-sowing rice seed of Sakha 104 cultivar with Ascorbic produced the highest germination percentage, speed germination index, germination rate and seedling dry weight and the lowest mean germination time as well as time 50 % germinated seed compared with other two cultivars under study.
rice
salt tolerance
antioxidants pre-sowing treatment
protein and isoenzymes
2011
07
01
971
981
https://jpp.journals.ekb.eg/article_85630_fbfc2cbae928f5c9e5e9eebfe3a08a4e.pdf