2024-03-29T17:38:41Z
https://jpp.journals.ekb.eg/?_action=export&rf=summon&issue=7151
Journal of Plant Production
2090-3669
2090-3669
2016
7
9
Grafting Can Modulate Watermelon Growth and Productivity under Egyptian Conditions
M.
El-Kersh
S.
El-Meniawy
S.
Abd El-Hady
This study was accomplished in a private farm at Al Salhia area, Sharqia Governorate, Egypt during the two successive spring-summer seasons of 2013 and 2014 to assess the effect of grafting methods and rootstocks on plant growth performance, fruit yield and fruit quality of watermelon (Citrullus lanatus [Thunb.] cv. Peacock wm60. Peacock wm60 plants were grafted onto five rootstocks (6001 F1, Super Shintoza F1, Ferro F1, bottle gourd cv. Local, and Peacock wm60 as self-grafted) either by splice and tongue approach. Non-grafted plants of Peacock wm60 were used as control. Grafting methods pronounced non-significant impact on watermelon vegetative and root growth and fruit yield and quality after transplanting in the field (scope of our study). Based on the data, watermelon propagation via grafting on the rootstocks of 6001, Super Shintosa and Ferro positively impacted on plant growth attributes and fruit yield and quality (fruit weight, rind sickness and TSS content) compared to grafting on local rootstock, self-grafted or direct seed plants. Rootstock of 6001 appeared superior to others on enhancing the measured parameters of plant growth, yield and fruit quality as well as root growth (roots dry weight). Local rootstock of bottle gourd impacted poorly on plant growth, yield and fruit quality compared to other rootstocks but superior to self-grafted or direct seed plants. The data concluded that, choice grafting method either splice or tongue approach for production watermelon seedlings depends on their results in the nursery before planting the grafted seedlings in the field because of differences between the methods on the plant behavior after transplanting were absent.
Watermelon
grafting
Grafting Methods
rootstock
Scion
Seedling
propagation
yield
fruit quality
2016
09
01
915
922
https://jpp.journals.ekb.eg/article_46214_45982e3e4ca9f5a413de5b0658694c84.pdf
Journal of Plant Production
2090-3669
2090-3669
2016
7
9
Effect of Organic, Mineral Fertilization and Foliar Spraying with Some Biostimulants on Growth, Yield and Chemical Composition of Pea
H.
Abdel Naby
El.
Fathy
E.
El-Gamily
Nourgehan
Salem
Two field experiments were carried out during 2013/2014 and 2014/2015 seasons to study the effect of organic fertilization (farmyard manure “FYM” at the rate of 20 t/fed and humic acid “HA” at the rate of 20 kg/fed), NPK fertilization (50 % of the recommended doses i.e. 40 kg N + 20 kg P2O5 + 40 K2O/fed and 100 % of the recommended doses i.e. 80 kg N + 40 kg P2O5 + 80 K2O/fed) and foliar spraying with some biostimulants (without, foliar spraying with Stemo at rate of 0.5 ml/liter water, potassium salicylate at rate of 2.0 ml/liter water, Super-grow at rate of 1.5 ml/liter water and mixture of Stemo at rate of 0.25 ml/liter water + K. Sal at rate of 1.00 ml/liter water + Super-grow at rate of 0.75 ml/liter water) as well as their interaction on growth, yield and its components and chemical composition of pea Master B cultivar. The experiment was carried out in a strip-split plot design with three replications. The obtained results could be summarized as follows:- The maximum means of all studied characters were recorded by humic acid (HA) at the rate of 20 kg/fed, while the minimum values were resulted from using farmyard manure (FYM) at the rate of 20 t/fed in both seasons. - Increasing NPK fertilization levels from 50 % of the recommended doses (40 kg N + 20 kg P2O5 + 40 K2O/fed) to 100 % (80 kg N + 40 kg P2O5 + 80 K2O/fed) was accompanied with significant increase in all studied characters. - Foliar spraying with mixture exceeded the other treatments with some biostimulants and resulted in the highest means of all studied parameters in both seasons. It could be recommended that organic fertilizing pea plants with humic acid at the rate of 20 kg/fed and mineral fertilizing with 80 kg N + 40 kg P2O5 + 80 K2O/fed in addition to foliar spraying three times with the mixture of biostimulants i.e. Stemo at rate of 0.25 ml/liter water + K. Sal at rate of 1.00 ml/liter water + Super-grow at rate of 0.75 ml/liter water in order to maximizing pea growth, yield and quality.
pea
organic fertilization
FYM
Humic acid
NPK levels
foliar spraying
biostimulants
Growth
yield
Chemical composition
2016
09
01
925
933
https://jpp.journals.ekb.eg/article_46806_f421dd70c7b85f3a9e67585b60cbbd5a.pdf
Journal of Plant Production
2090-3669
2090-3669
2016
7
9
Effect of Nano-Fertilizer (Lithovit) and Potassium on Leaves Chemical Composition of Egyptian Cotton Under Different Planting Dates.
A.
Attia
M.
El-Hendi
S.
Hamoda
O.
El-Sayed
Two field experiments were carried out at El-Gemmeiza Agricultural Research Station, El-Gharbia Governorate in 2014 and 2015 seasons, to study the effect of nano-fertilizer (Lithovit) rates (0, 2.5, 5 and 7.5 g/l) and foliar potassium fertilizer (in the form of Potasin-P) rates (2.5, 5 and 7.5 cm3/l) under three planting dates (8 April, 8 May and 8 June) on leaves chemical composition of the Egyptian cotton (Gossypium barbadense L.), cultivar Giza 86. Cotton plants were foliar sprayed with Lithovit and Potasin-P at 45 and 60; 46 and 61 days after planting, respectively. Leaves N, P, K, chlorophyll a, b, total chlorophyll, carotenoids and total carbohydrates contents were significantly affected by planting date in both seasons, in favour of early planting date (8 April) compared to medium and late planting dates (8 May and 8 June). Delaying planting date significantly increased leaf proline content and leaf peroxidase activity which indicate the presence of heat stress effect on the plant.Leaves N, chlorophyll a, b, total chlorophyll, carotenoids and total carbohydrates contents were significantly affected by rates of Potasin-P in both seasons, in favour of the medium rate of Potasin-P (5cm3/l). While, leaves P and K contents were significantly increased by using the high rate of Potasin-P (7.5cm3/l). The medium rate of Potasin-P (5cm3/l) significantly decreased leaf proline content and peroxidase activity which indicate favorable plant conditions.Leaves N, P, K, chlorophyll a, b, total chlorophyll, carotenoids and total carbohydrates contents were significantly increased by each increment of nano-fertilizer (Lithovit). The inverse was true in leaf proline content and peroxidase activity. The decrease in these traits induced favorable plant conditions and reflected on reduce environmental stress effect.The second order interaction had a significant effect on all studied chemical composition of leaves. Cotton plants sown on 8 April and sprayed with 5cm3 Potasin-P /l and 7.5 g Lithovit/l recorded the highest values of N, P, K, chlorophyll a, b, total chlorophyll, carotenoids and total carbohydrates content in leaves. In the contrary, this interaction recorded the lowest values of leaf proline content and peroxidase activity which induced favorable plant conditions and reflect on reduce environmental stress effect. It can be concluded that the mentioned interaction was the recommended treatment for optimum chemical composition of cotton leaves under experimental conditions.
2016
09
01
935
942
https://jpp.journals.ekb.eg/article_46810_890030ac1576eb8098a7712718927428.pdf
Journal of Plant Production
2090-3669
2090-3669
2016
7
9
Studies the Effect of Alternative Dormancy Breaking Agents on “Le-Cont” Pear Cultivar
M.
Makarem
Nevine
Taha
Naglaa
Shakweer
This study was carried out during two successive seasons of 2013 and 2014, to investigate the effect of alternative dormancy breaking agents on bud break, growth, yield and fruit characteristics of “Le-Cont” pear cultivar. The following treatments were investigated at the dormant bud stage; 2% Garlic extract (GE) + 4% Summer oil; 4% GE + 4% (summer oil); 2% hydrogen cyanamide (H2CN2) + 4% (summer oil); 4% H2CN2 + 4% (summer oil); 2 % urea phosphite (CO(NH2)2.H3PO3) + 4% (summer oil); 4 % (urea phosphite) + 4% (summer oil); 4% Summer oil alone. The effects of all treatments were compared with the control (untreated trees). It is noticed that the beginning of flowering to all treatments resulted in early flowering and shorter than the control. All treatments increased both bud burst percentage and floral bud percentage; especially garlic extracts at the highest concentration. Garlic extract and urea phosphite concentration gave the highest number of fruits/tree and yield kg/tree also fruit weight, size and their dimensions have been affected. Hydrogen cyanamide 4 % and urea phosphite 2 % gave the softener fruits. In addition, all treatments was affected to increase TSS, total and reducing sugars than control treatment. Hormonal changes during the rest period in flower buds of Le-Conte pear were determined in the 2nd season of the study. The highest levels of IAA and GA3 contents were found to be in endo-dormancy (on the end of Feb.), while Abscisic acid showed the highest values during the 1st deep dormancy (on the end of Dec.). It was a remarkable increases in IAA and GA3 occurred at bud swelling stage. Meanwhile, the lowest level of ABA was observed at the same stage.
Le-Conte pear cultivar
bud break
hydrogen Cyanamid
urea phosphate
mineral oil
flowering
yield
fruit quality.
2016
09
01
943
950
https://jpp.journals.ekb.eg/article_46850_aa2d3b68d9b16ff5c57b3863122a13a6.pdf
Journal of Plant Production
2090-3669
2090-3669
2016
7
9
Response of Canino apricot trees to different sources of bio-organic fertilization
Nevine
Taha
R.
El-Shahat
The present study was performed during the two successive seasons of 2014 and 2015 on "Canino" apricot (Prunus armenica) trees of ten years old grown in a new reclaimed sandy soil in a private orchard at El-Khtattba, El-Monofia Governorate. Evaluation to different sources of bio and organic fertilizers were performed through the shoot length, shoot diameter, number of leaves and chlorophyll content were following recorded. In addition to, some fruiting parameters i.e. number of flowers/spur, fruit set (%), fruit weight (g), yield/tree and TSS/acid ratio. Dehydrogenase activity, CO2 evolution, total nitrogen, available P and K in soil, the leaf contents N, P, K, Zn, Fe and Mn in dry matter of dry leaves were also determined. Results showed that organic fertilizer treatments used with recommended dose in this study improvement markedly both vegetative growth, fruit set, fruit weight, yield and fruit quality. Also, all sources of bio-organic fertilizers observed that storage studies on "Canino" apricot fruits showed that highest fruit ability for keeping quality for 30 days in cold storage at 0 °C and 90 % R.H. and 8 days of shelf life at room temperatures (20 -25 °C) was also studied. Algae treatment was the most effective one for increasing shoot length, diameter, leaf number and chlorophyll, chicken manure extract followed in descending order. Algae, chicken and cattle manure extract recorded the highest fruit set, yield and fruit weight. The results cleared that using different sources of bio-organic fertilizers improved TSS which was in parallel decreased acidity in fruit juice. All treatments improved storage properties under the shelf life (room temperature) during eight days, Nile fertile recorded the highest value of the weight loss. On the other hand, chicken manure and algae recorded the least fruit weight loss. The same results were noticed with fruit firmness. TSS % was differ among treatments and led to increase through storage eight days at shelf life but at cold storage (0°C) SSC increase gradually prolonged tell 20 days then reduction in SSC % occur at the last ten days in both seasons. Algae, chicken and cattle extract effectively were superior than all other treatments. Soil biological activity in rhizosphere (total bacteria counts, dehydrogenase as well as CO2 evolution showed a positive response with bio-organic fertilizers. Soil application of algae, compost tea and Nile fertile extract led to increase the soil WHC, organic matter (OM %), pH and TN and decrease EC compared to control.
Canino
organic fertilizers
growth parameters
yield
quality and storability
2016
09
01
951
962
https://jpp.journals.ekb.eg/article_46854_d0759a81cd805dfe651d7e35c19387fb.pdf
Journal of Plant Production
2090-3669
2090-3669
2016
7
9
Response of Sugar Beet to Different Levels of Potassium and Magnesium Fertilization Under Sandy Soil Conditions
S.
Enan
Two field experiments were conducted at Wadi El-Natrun, El-Bahira Governorate, (latitude of 30.480 N and longitude of 30.500 E) during 2013/2014 and 2014/2015 seasons to study the effect of potassium and magnesium fertilizers on yield and chemical constituents of sugar beet (Beta vulgaris var. saccharifera, L.) grown in a sandy soil. The present work included twelve treatments, which were three potassium levels (50, 75 and 100 kg K2SO4/fed) added before canopy closer as potassium sulphate (48% K2O), in combination with four levels of magnesium: (without magnesium, 20, 50 and 80 kg MgSO4/fed in the form of magnesium sulphate (MgSO4. 7 H2O) containing 10% MgO, which was added after seed bed preparation and after plotting. The treatments were arranged in a strip plots design in three replicates. The vertical plots were occupied with the three levels of potassium and the horizontal plots were devoted to the four levels of magnesium. The results showed that fertilizing sugar beet with 75 kg and/or 100 kg K2SO4/fed produced significantly higher valuesof chlorophyll (b) and carotenoids, root fresh weight/plant, sucrose% and foliage contents of K and Mg, in both seasons. Applying of 75 kg K2SO4/fed significantly decreased the amount of Na, K, alph amino-N contents in roots, sugar lost to molasses% and increased quality index as well as extractable sugar, in both seasons. Meantime, chlorophyll (a), nitrogen and phosphorus contents in leaves, magnesium uptake in roots, root diameter and foliage fresh weight/plant, root/top ratio were insignificantly affected by potassium levels studied. Increasing magnesium fertilizer up to 80 kg MgSO4/fed resulted in higher values of photosynthetic pigments, root and top fresh weights/plant, root/top ratio, foliage contents of N, K, P and Mg as well as magnesium uptake in roots. Moreover, it improved sucrose, extractable sugar and quality index percentages significantly, in both seasons. Meantime, potassium and sodium contents in beet roots were insignificantly influenced by the applied magnesium levels. The interaction between potassium and magnesium levels had a significant effects on leaf content of chlorophyll (a), root diameter, nitrogen content in leaves and root yield/fed, in both seasons as well as sugar yield/fed, in 1st one. The combination of 75 kg K2SO4/fed + 80 kg MgSO4/fed achieved the maximum root yield (27.88 and 27.07 t/fed) in the 1st and 2nd season, respectively and the highest sugar yields (4.51 t/fed) in 1st one . It could be concluded that the application of K2SO4 at the rate of 75 kg and MgSO4 at the rate of 80 kg is the suitable recommendation to maximize the productivity and quality of sugar beet grown in a sandy soils at Wady El-Natrun.
Magnesium
potassium
sandy soil
Sugar beet
2016
09
01
963
972
https://jpp.journals.ekb.eg/article_46856_3c2ffff49ebbf7f3f0b6634bd3e56255.pdf
Journal of Plant Production
2090-3669
2090-3669
2016
7
9
Performance of Some Rice Genotypes Sown on Different Dates in Yield, Quality Traits and Infestation by Lesser Grain Borer
T.
Metwally
H.
El-Zun
Nilly
Abdelfattah
A 2-year field experiment was conducted at the Experimental Farm of Rice Research and Training Center, Sakha, Kafr El-Sheikh Egypt during 2014 and 2015 seasons, to study the effect of sowing date (15th of April, 1st of May and 15th of May) on grain yield of twenty rice genotypes, and infestation by Rhizopertha dominica (F.). Sowing date had significant effects on all studied characters in both years. The highest values of number of panicles per hill, number of filled grains per panicle, grain yield, hulling, milling and broken rice grain were recorded in the early sowing date. The number of days from seeding to maturity and number of unfilled spikelets per panicle were recorded in the decline trend, as sowing was delayed. Egyptian Hybrid Rice 1 produced the highest values of grain yield followed by Giza179, and Giza178. Sakha106 produced maximum values of hulling and milling percentages. Regarding to the susceptibility of rice varieties to insect infestation by lesser grain borer, R. dominica in storage, data showed that the were Giza 178, Sakha 102, Sakha 104, Sakha 105, Giza 182, Giza179, GZ 9057-6-1-3-3, GZ 9577-4-1-1, GZ 9523-2-1-1-1 and GZ 9514-3-1-3-1 ha lower infestation. The moderate infested varieties were Sakha 103, Sakha 106, GZ 9328-1-2-1-3, GZ 9362-34-2-1-3, GZ 9461-4-2-3-1 and Egyptian Hybrid1. The highest infested ones were Giza 177, Sakha 101, GZ 9057-6-1-3-4 and Egyptian Yasmin. Also, data showed that the number of F1, progeny and susceptibility index (SI) recorded the lowest values when rice was sown on 15st of April, but they recorded the highest values when sown on 15th of May. The duration of life cycle decreased with late sowing dates. Also, results revealed highly positive significant correlation between insect infestation and hulling% and milling%.
rice
sowing date
genotypes
grain quality
Rhizopertha dominica
2016
09
01
973
981
https://jpp.journals.ekb.eg/article_46859_caf274858621fcbecc9353a70f1e349d.pdf
Journal of Plant Production
2090-3669
2090-3669
2016
7
9
Study of Some Factors Affected on Dry Seed Yield and its Components of Common Bean (Phaseolus vulgaris L.)
A.
Ismail
This experiment was suggested to study the beneficial effects of some levels of NPK fertilizers i.e. (0, 50, 75 and 100%) from NPK recommendation for common bean with humic acid (HA) on plant growth, dry seed yield and its components, quality and seeds chemical composition of common bean(Phaseolus vulgaris L.) cvs. Nebraska and Bronco. All experiments were achieved at the Experimental Farm of Kaha Research Farm, Horticulture Research Institute, Agriculture Research Center (ARC), Qaliobia Governorate, Egypt, during the two successive summer seasons of 2013 and 2014. The results showed that adding humic acid (HA) to common bean plantswith the level of 50% from NPK recommendation gave the highest values of vegetative growth, total dry seed yield and its chemical composition with cv. Nebraska or also cv. Bronco which cultivated under these study for the purpose of dry seed production. This treatment also led to save 50% of NPK fertilizers for common bean requirements. For that, it can be recommended that fertilization of common bean plants for the purpose of dry seed production by 50% from common bean NPK recommendation plus humic acid (HA) to obtain significant highest dry seed yield with best quality and at the same time save 50% from mineral fertilizer recommendation of common bean.
common bean
Nebraska
bronco
Humic acid (HA)
NPK
Growth
dry seed yield
seed quality
2016
09
01
983
990
https://jpp.journals.ekb.eg/article_46860_1ddae2f1febbb03f6531e26d8245adc0.pdf
Journal of Plant Production
2090-3669
2090-3669
2016
7
9
Response of Pea Plant (Pisum sativum L.) for Levels of Nitrogen, Rhizobium Inoculation and Spraying of Molybdenum on Growth, Green Pods, Dry Seed Yield and its Components
M.
Abdel-Aziz
A.
Ismail
The current study was carried out at Qaha Vegetable Research Farm (Qalubia Governorate), Horticulture Research Institute, Agriculture Research Center (A. R. C.), Egypt, during the two consecutive winter seasons of 2014/2015 and 2015/2016 to study the influence of different nitrogen fertilization levels i.e. 20, 35 and 50 Kg N/ fed., an inoculation of pea seeds (Pisum sativum L.) cv. Master B with compatible strain of the nodule bacteria Rhizobium leguminosarum,foliar spraying with molybdenum twice at the rate of 10 Mg/ L. and its combinations on vegetative growth, total fresh green pod and dry seed yield (ton/ fed.). Increasing nitrogen fertilization levels from 20 to 50 Kg N/fed. alone led to significant increased plant pea growth, fresh green pod yield, green pod characters, dry seed yield, nitrogen, protein, phosphorus and potassium (%) presenting contents for dry seed. However, the earliest germination rate (days) were obtained with adding 35 Kg N/fed. during the two winter seasons, as compared with the other two levels (20 and 50 Kg N/fed.).Results showed that the Rhizobium inoculation gave better pea growth, green pods yield, dry seed yield and its quality as well as germination ratio, rate (days) and sprout length (cm) with adding 35 Kg N/fed. compared with the same treatments with other two N fertilization levels(20 and 50 kg N/fed). But the foliar spraying by molybdenum twice at the rate of 10 Mg/ L. led to significant increased with nitrogen level from 20 up to 50 Kg N/fed. for all traits under this study. On the other hand, adding 50 Kg N/fed. with the foliar spraying by molybdenum gave significant increased on all parameters for this study compared with other treatments. The results showed that adding 35 Kg N/fed. with Rhizobium inoculation and molybdenum foliar spraying twice at the rate of 10 Mg/L. led to significant increased for total green and dry pea seed yield as well as its characters compared with the same combination under other two nitrogen levels (20 and 50 kg N/fed). In generally, the combination between adding 35 kg N/fed, Rhizobium inoculation and molybdenum foliar spraying twice at the rate of 10 Mg/L was the highest economic return and led to provide 30% of nitrogen fertilization. Fedan = 4200 m2.
Pisum sativum
nitrogen levels
inoculation with Rhizobium
foliar
molybdenum
2016
09
01
991
1000
https://jpp.journals.ekb.eg/article_46863_6e4236b70abf499a6d1008d2151c7399.pdf
Journal of Plant Production
2090-3669
2090-3669
2016
7
9
Effect of Some Seed Stimulants on Seed Germinability and Seedling Vigour Under Salinity Stress in Wheat
A.
Kishk
Amal
EL-Mahdy
M.
El-Mowafy
Application of some chemicals such as salicylic acid, chitosan and hydrogen peroxide as pre-sowing treatment could improve its performance under different salinity levels. Laboratories and pot experiments were carried out during 2015 year. Wheat seeds were treated with plant stimulants (0, 50, 100, 150 ppm) and then germinated under different salinity levels namely (0,100,150 and 200 mMol of NaCl). The present study aimed to determine the impact of salt stress on wheat seed viability to screen out the best seed stimulants resistant to the various changes associated with the plants under different salinity levels. The main results showed that treating wheat seed before sowing with chitosan produced the vigours seedling and its length, and dry weight, vigor index, germination percentage, germination energy, as well as proline content as compared with treating the seed with salicylic acid and hydrogen peroxide. Increased salinity levels caused great reduction in seedling length, and its dry weight, vigor index, germination percentage, germination energy, germination rate and pot emergence as compared with control, except for proline content. The results revealed also, that the interaction effect between salinity treatments, seed germination stimulants and concentrations was significant for all studied traits. Furthermore, using chitosan followed by salicylic acid and hydrogen peroxide was the most effective treatment to protect wheat seed cv Gemmiza 9 during germination from adverse salinity effect .
Wheat
seed stimulants – salt stress
seedling vigor
2016
09
01
1001
1005
https://jpp.journals.ekb.eg/article_46865_3c32e455314b4cbccbb44fe98f725be8.pdf
Journal of Plant Production
2090-3669
2090-3669
2016
7
9
Productivity Of Bread Wheat Under Different Irrigation Levels And Splitting Nitrogen Fertilization In Newly Reclaimed Soils
M.
Said
In order to study the effect of irrigation water rates and splitting nitrogen on productivity of wheat. Three field experiments were conducted at El-Wady Al-Assiuty experimental farm in new reclaimed soil during 2013/2014 and 2014/2015 seasons using cultivar Sids 12 using sprinkler irrigation system. Each experiment subjected to one level of irrigation water requirements (100%, 75% and 50%) and each experiment contains four treatments of splitting nitrogen fertilization. Results indicated that, irrigation levels had a high significant effect on yield and its components. As when 50% of the recommended irrigation requirements was applied, the reduction of grain yield reached 44.3 and 28.9% in the first and second seasons, respectively. Moreover, splitting nitrogen fertilization affected all studied traits. As splitting nitrogen fertilization to five splits recorded the highest mean value of grain and biological yields as compared with control (3 splits) in both seasons. The interaction between irrigation levels and splitting of the nitrogen fertilizer had a significant effect on grain yield. As the highest mean value of grain yield was obtained from 5 splits with 100% of irrigation requirement in the first season while in the second season the highest grain yield was obtained from 6 splits with 100% irrigation requirements. From this study, data clarify that in sandy soils about 25% of irrigation requirements could be saved without significant losses in grain yield by splitting the nitrogen fertilization. Thus we could have additional amount of water could be used for increase the cultivation area of wheat to minimize the production consumption gap of this crop.
Wheat
irrigation requirements
splitting
Nitrogen fertilization
2016
09
01
1007
1012
https://jpp.journals.ekb.eg/article_46867_741f26bb66c83a8fb793929d41ee7b9c.pdf
Journal of Plant Production
2090-3669
2090-3669
2016
7
9
Response of Some Bread Wheat Cultivars to Nitrogen Fertilizer Splitting Under Sandy Soil Conditions
M.
Said
A.
AbdEl-Moneem
The present investigation was carried out at Elwady El Assiuty Experimental Farm, Faculty of Agriculture, AssiutUniversity during 2013/2014 and 2014/2015 seasons to study the effect of nitrogen fertilizer splitting on the productivity of six local bread wheat cultivars under sandy soil condition. Randomized complete block design (RCBD) using strip block arrangement with three replications was used. Cultivars under study viz. Giza-168, Misr-1, Misr-2, Sids-1, Sids-12 and Shandaweel-1 were arranged in horizontal strips, while splitting (3, 4, 5 and 6 times) nitrogen fertilizer treatments were allocated to vertical strips. The obtained results pointed out that the superiority was to Sids-1 cultivar in plant height and spike length in both seasons. Moreover, Sids-12 cultivar surpassed other studied cultivars in spike number m-2, biological and grain yields (ton ha-1) in both seasons. While, Misr-1 cultivar was superior the other studied cultivars in harvest index in both seasons. Here too, Giza-168 and Shandaweel-1 had the highest content of chlorophyll in both seasons. Also, the obtained data showed that 1000 kernel weight (g), biological and grain yields and harvest index increased when nitrogen fertilizer was split into five equal doses in both seasons. The previous findings were true with regard to chlorophyll content in the second season only. The tallest plants were obtained when nitrogen fertilizer was split into six equal doses in the two growing seasons. Moreover, the highest numbers of spikes m-2 were recorded when nitrogen fertilizer was split into at three equal doses in both seasons. Also, spike length and spikelets number spike-1 were increased when nitrogen fertilizer was split into four equal doses in both seasons. Moreover, the interaction between wheat cultivars and nitrogen fertilizer splitting had a significant influence on all studied traits in both seasons. The highest mean values of chlorophyll content and plant height were recorded from Shandaweel-1 and Sids-1 cultivars, respectively in both seasons when nitrogen fertilizer was split into six equal doses. Finally, the highest grain yield was obtained from Sids-1 cultivar when nitrogen fertilizer was split into five equal doses.
Wheat cultivars
Nitrogen fertilizer splitting
sandy soil
2016
09
01
1013
1019
https://jpp.journals.ekb.eg/article_46870_014447c54ca6a4199993a86fca196cc9.pdf
Journal of Plant Production
2090-3669
2090-3669
2016
7
9
Effect of Using Two Different Types of Engineered Nanomaterials on The Growth and Antioxidant Enzymes of French Bean Plants
M.
Hasaneen
Heba
Abdel-Aziz
Aya
Omer
The application of nanomaterials in agriculture is one of the most greatly studied areas in nanotechnology as it includes the using of nanofertilizers to transport nutrient elements to the plant at the needed time and required amount, thereby improving the use efficiency. This work was designed to investigate the effects of soil incorporation of two different types of engineered nanofertilizer namely: carbon nanotubes and chitosan nanoparticles alone or loaded with nitrogen, phosphorus and potassium (NPK) on the different growth criteria of French bean plants. The results indicate that after about 30 days from the date of planting, nanomaterials either alone or in combination with NPK significantly decrease plant growth and increase the activity of antioxidant enzymes implying that French bean plants were exposed to an oxidative stress.
carbon nanotubes
Chitosan
French bean
nanofertilizer
Antioxidant enzymes
2016
09
01
1021
1025
https://jpp.journals.ekb.eg/article_46872_aab0358710b1c6b288789a7b9be21b69.pdf
Journal of Plant Production
2090-3669
2090-3669
2016
7
9
Selection and Molecular Identification of Semi Dry Date Palm Seedlings Using RAPD Markers
Zeinab
Abo-Rekab
A.
El-Kerdany
Ghada
Ali
Y.
Diab
This investigation was carried out during two successive seasons (2014 – 2015) at Fayoum governorate. The present investigation was divided into two parts. The first part aimed to select the high fruit quality of semi-dry maghal trees of date palm in Fayoum governorate. Panel taste evaluation, vegetative and morphological characters of trees, flowering, fruit set, fruit physical and chemical characteristics as well as mineral nutrients of fruitswere studied in six semi-dry maghal date palms compared to Seewy cultivar as control. The numerical selection of selected palms showed that date palm No. 6 recorded 96.38 units and gave the first rank, while tree No. 2 gave the sixth rank and gave 78.71 units and finally Seewy cultivar 70.43 units. Six semi-dry date palms were considered as an initial for a semi-dry date palm cultivars under Fayoum governorate. On the other hand, the second part aimed to characterize molecular genetic markers among the six semi-dry date palms and Seewy cultivar. Data of RAPD recorded a sum of 52 bands, where 29 bands among them were polymorphic bands and 23 bands were monomorphic in all trees under study. On the other hand, a strongest relationship was scored between tree No. 1 and tree No. 4 as well as between tree No. 6 and Seewy cultivar (similarity reached 100%).
date palm
selection
semi-dry
panel taste
maghal
RAPD DNA
2016
09
01
1027
1036
https://jpp.journals.ekb.eg/article_46874_9a1dc31a88793887d469787b82c84db0.pdf