@article { author = {Abou El-Wafa, M. and El-Taweel, A. and Farag, A.}, title = {Calculating Heat Requirements and Flowering Generation of some Pomegranate Cultivars Grown in Egypt}, journal = {Journal of Plant Production}, volume = {12}, number = {8}, pages = {819-824}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2021.189406}, abstract = {The present investigation was carried out in a private farm located at Alexandria Desert Road (km 64), Giza Governorate, Egypt to calculating heat requirements and generation flowering of some pomegranate cultivars (H 116, Wonderful and Manfalouty) grown in Giza Governorate during 2018 and 2019 seasons.Results showed that under Giza Governorate conditions, average of effective heat summation requirement from red tip to harvest stage for H 116, Wonderful and Manfalouty are (1789, 2403), (2982, 3569) and (3036, 3602) growing degree days (GDD) during the two season of the study, respectively. Also, found that the first generation of flowering gave the highest value of fruit length and diameter (cm), fruit weight (g) and acidity (%).While, the second generation of flowering gave the highest value of fruit weight (g), number of fruit/tree, yield (kg/tree) and total soluble solids (%).Generally, it can be concluded that the effective heat summation requirement of Giza Governorate is suitable for commercial growing for (H 116, Wonderful and Manfalouty) cultivars. The first generation of flowering is good for production big fruit, while the second generation of flowering is suitable for production quantity and quality of fruits pomegranate.}, keywords = {Calculating Heat Requirements,H 116,Wonderful and Manfalouty}, url = {https://jpp.journals.ekb.eg/article_189406.html}, eprint = {https://jpp.journals.ekb.eg/article_189406_3022391babc5bd38580f09e5ef6bd9ea.pdf} } @article { author = {Rabeh, Houda and Gadallah, A. E. and Badawy, S.}, title = {Response of some Egyptian cotton cultivars growth, yield and fiber quality to different sources of nitrogen fertilizers and foliar zinc application}, journal = {Journal of Plant Production}, volume = {12}, number = {8}, pages = {825-835}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2021.198388}, abstract = {Two field experiments were carried out in Agricultural Research and Experimental Station, Faculty of Agriculture, Cairo University, Giza, Egypt (2019 and 2020) to study the response of Egyptian cotton cultivars (Giza 92, Giza 94 and Giza 95) growth, yield and fiber properties to foliar zinc (Zn) rates (0, 100 and 200 ppm) and nitrogen (N) fertilizers sources; urea (U), ammonium nitrate (AN) and ammonium sulfate (AS).  Cultivars, N sources and foliar Zn led to a significant effect on plant height, number of sympodial branches plant-1, total and open bolls plant-1, boll weight, seed index, seed cotton yield plant-1, seed cotton yield fed-1, fiber strength, and fineness. While, cultivars had a significant effect on the position of the 1st sympodial node, lint%, fiber length and uniformity index. Giza 95 was a superior in above parameter except seed index and fiber quality. While, Giza 92 was a superior in fiber quality. Significant of two and three interactions between studied factors existed on most of studied traits. Whereas, the highest values were obtained from plots treated with AS with foliar Zn at 200 ppm in most cases. Significant relationships were found between total boll and percentage of open boll plant-1; R2 = 0.76 (Giza 92), 0.89 (Giza 94) and 0.91 (Giza 95). Also, seed cotton yield fed.-1 with open bolls plant-1, boll weight and lint% (R2 = 0.862, 0.632 and 0.619, respectively). In such experimental soil conditions ammonium sulfate and foliar Zn at 200 ppm could be recommended to improve the cotton properties.}, keywords = {Cotton,Gossypium barbadense L,cultivars,zinc,nitrogen fertilizers,growth parameters,Fiber Quality}, url = {https://jpp.journals.ekb.eg/article_198388.html}, eprint = {https://jpp.journals.ekb.eg/article_198388_2c4395027d7609f05b177ebf5deee720.pdf} } @article { author = {EL-Shazly, M. and Abd El All, A.}, title = {Effect of Foliar Spraying with Compounds Rich in Potassium and Phosphorus as an Alternative to Soil Addition on the Growth, Productivity and Quality of Cotton}, journal = {Journal of Plant Production}, volume = {12}, number = {8}, pages = {837-845}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2021.198418}, abstract = {This study was conducted during two successive seasons (2019 and 2020) on cotton cultivar Giza 86 at El-Gemmeiza Agricultural Research Station, El-Gharbia Governorate, Egypt, to study the effect of foliar feeding withtwo compounds enriched with phosphorus and potassium [Agrophytex at two levels (2 and 4 cm3 /L) and potassium phosphate at two levels (2 and 4 g /L)] either alone or in combination at the low and high level compared to the control treatment (sprayed with tap water and fertilized with phosphorus and potassium at the recommended rates as soil application) on cotton productivity and quality. A randomized complete blocks design with 4 replicates was used. The obtained results revealed that foliar feeding with Agrophytexand potassium phosphate combination at the two levels examined significantly increased percentages of N, P, K and contents of chloroplast pigments in cotton leaves in 2019 season. Growth parameters, earliness measurements, seed cotton yield/feddan and its components in both seasons as well as micronaire reading and fiber strength in the second season were also increased. Whereas, boll shedding percentage decreased. Fiber length and uniformity index did not affected. It could be concluded that using combination of Agrophytexand potassium phosphate at the low level (2 cm3 Agrophytex+ 2 g potassium phosphate)/L four times (at seedling stage, squaring initiation, flowering start and peak of flowering stage) as alternative to soil P and K fertilization was recommended to reduce cost, overcome P and K fixation and obtain high productivity under conditions similar to El-Gemmeiza region.}, keywords = {Cotton,Foliar feeding,potassium phosphate,Pigments,minerals,Agrophytex,productivity}, url = {https://jpp.journals.ekb.eg/article_198418.html}, eprint = {https://jpp.journals.ekb.eg/article_198418_c0ea7eefb8af5529d64fbb1c3c074c45.pdf} } @article { author = {Ali, O. and Abdel-Aal, M. and Hussien, M.}, title = {Effect of Plant Distribution Patterns and Growth Regulators on Morphological, Yield and Technological Characters of Egyptian Cotton}, journal = {Journal of Plant Production}, volume = {12}, number = {8}, pages = {847-860}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2021.85866.1044}, abstract = {A field experiment was conducted at the Experimental Farm, Faculty of Agriculture, Menoufia University, Shebin El-Kom, Egypt during 2019 and 2020 seasons to study the effect of plant distribution patterns i.e. D1 (sowing cotton in furrows 70 cm width in one ridge with 25 cm between hills and two plants/hill), D2 (sowing cotton in furrows 70 cm width in one ridge with 12.5 cm between hills and one plant/hill), D3 (sowing cotton in beds 140 cm width in two ridges with 25 cm between hills and two plants/hill), D4 (sowing cotton in beds 140 cm width in two ridges with 12.5 cm between hills and one plant/hill) and foliar application with plant growth regulators i.e. control, kinetin (15 ppm), naphthalene acetic acid (15 ppm), mepiquat chloride (100 ppm), mepiquat chloride + kinetin and mepiquat chloride + naphthalene acetic acid at 80 and 95 DAS and on light intensity, morphological traits, flowering and abscission, yield and its components and seed and fiber quality of Egyptian cotton (Giza 86 cv.). The results indicated that sowing cotton plants with D3 pattern surpassed the other plant distribution patterns in most studied characters, while D1 increased plant height but decreased fiber fineness. On the other hand, number of squares/plant, boll weight, 100-seed weight, fiber strength and uniformity index were not significantly affected by plant distribution patterns. Application of growth regulators either single or dual caused a positive effect. NAA or MC+NAA were the superior treatments in most characters studied. However, unsprayed cotton plants increased total abscission. It could be concluded that sowing plants in beds with plant distribution pattern (D3) and foliar application with 100 ppm MC at 80 DAS followed by 15 ppm NAA at 95 DAS was the best interaction treatment in comparison to other interaction treatments to obtain the highest values of light intensity, total dry weight/plant, number of open bolls / plant, seed cotton yield per plant and fed, oil yield /fed and protein yield /fed).}, keywords = {Gossypium barbadense,Plant distribution,growth regulators,Light intensity,Abscission,productivity and Quality}, url = {https://jpp.journals.ekb.eg/article_198419.html}, eprint = {https://jpp.journals.ekb.eg/article_198419_a128abb7888a79e861f35812b3aeab57.pdf} } @article { author = {Mohamed, A. and Sayed, Heba}, title = {Early marketable yield and better berry skin color of ‘Redglobe’ grapevines cultivar grown under warm climate by application of Sulis®}, journal = {Journal of Plant Production}, volume = {12}, number = {8}, pages = {861-867}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2021.198424}, abstract = {Coloration of red grapes under high temperature and narrow day/night temperature range conditions is a great challenge. The aim of the investigation was to test the effect of Sulis® fertilizer which has recently commercially released in Egypt on the color of ‘Redglobe’ grapes. In 2018, the treatments were water (control), 1 ml L-1 Sulis®, or 2 ml L-1 Sulis®. ‘Redglobe’ berries were darker red color due to Sulis® treatments, with no different effect between both Sulis® concentration. While, The 2019 treatments were water (control), 150 mg l-1 ABA + 250 mg l-1 Ethephone, 1 ml L-1 Sulis®+ 250 mg l-1 Ethephone, or 1 ml L-1 Sulis®. During both seasons, the treatments gave the same effect on physical berry characteristics. The bunches sprayed with ABA or Sulis® +ethephone were harvested 10 days earlier than those treated with Sulis® alone, and 20 days earlier than the control clusters. The treatments gave higher packable yield percentages at first pick harvest and SSC/TA ratio than the control. L*, a*, b*, C* and h˚ of berry color traits were decreased due to the treatment applications. Sulis®+ethephone and Sulis® treatments increased the red color index and anthocyanin content in berry skin than the control treatments. Sulis® fertilizers is promising as a coloring agent in grapevines cultivation.}, keywords = {Redglobe,Grapes color,Ethephon,Sulis®,Berry Skin}, url = {https://jpp.journals.ekb.eg/article_198424.html}, eprint = {https://jpp.journals.ekb.eg/article_198424_6569b43b3f011a86dd2cd8dff360990c.pdf} } @article { author = {EL-Shazly, M. and Ata Allah, Y. and Abd El All, A.}, title = {Effect of different potassium forms on growth, some physiological aspects and productivity of Egyptian cotton}, journal = {Journal of Plant Production}, volume = {12}, number = {8}, pages = {869-879}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2021.198683}, abstract = {Two field experiments were carried out at El-Gemmeiza Agricultural Research Station, El-Gharbia Governorate, Egypt during 2019 and 2020 seasons, to evaluate the effect of foliar feeding with three sources of potassium [1- mineral source (potassium sulphate), 2- organic source (potassium humate) and 3- natural source (potassium ore)]at two levels from each source (0.5 and 1g/L), (2 and 4 g/L) and (4 and 8 g/L) in respective order. The effect of combination between the three sources at the two levels, in addition to the control treatment were also evaluated on growth, some physiological aspects and productivity of Egyptian cotton cultivar Giza 86. The obtained results indicated that foliar feeding with the combination of the three sources examined at the low level or at the high level resulted in significant increase in leaves N, P, K, Mg and photosynthetic pigments contents, growth parameters, earliness measurements (except boll shedding percentage which was decreased) and seed cotton yield feddan-1, boll weight and open bolls numberplant-1 in 2019 and 2020 seasons as well as seed index, lint%, fiber length, micronaire reading and fiber strength in 2020 season as compared with the control. It was recommended to spraying combination of the three examined K sources (potassium sulphate, potassium humate and potassium ore) at the low level (0.5, 2 and 4 g/L) in respective order three times as alternative to soil K fertilization to reduce cost, overcome K fixation and obtain high cotton productivity under conditions similar to that of El-Gemmeiza region.}, keywords = {Cotton,potassium sources,Mineral,organic,Natural,ore}, url = {https://jpp.journals.ekb.eg/article_198683.html}, eprint = {https://jpp.journals.ekb.eg/article_198683_dfd200c12f64b3223f6008bfd948fece.pdf} } @article { author = {El-Gazzar, I.}, title = {Evaluation of New Popcorn Hybrids Under Two Plant Densities}, journal = {Journal of Plant Production}, volume = {12}, number = {8}, pages = {881-885}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2021.198685}, abstract = {Seven popcorn inbred lines were crossed in a half-diallel mating design in2019season. The resulting 21 F1 hybrids were evaluated in 2020 season in a split plot design with three replications.Two plant densities (D) of 25000 and 31000 plant/feddan were arranged in the main plots and 21 popcorn hybrids were arranged in the sub plots.Data were recorded on days to50% silking, plant height, grain yield, No.of kernels/10g, popping volume, unpopped kernels% and ear diameter. The results showed that plant height,grain yield and unpopped kernels% were affected by plant density. The higher plant density produced taller plants , higher grain yield/ fed  and low unpopped kernels%  than those under low plant density.Significant variability among popcorn hybrids were detected for all traits. While the interaction between hybrid × plant density was not significant for all studied traits. Two popcorn hybrids(Sk4016×Hp6215)and (ZPB2×Hp6208) had high grain yield/fed and  high popping volume. The additive gene effects were more important than non-additive genes effects for the inheritance of number of kernels/10g, popping volume and ear diameter. While, the non-additive gene effects were more important than additive genes in the inheritance of days to50% silking, plant height, grain yield/fed and unpopped kernels%. The desirable inbred lines for general combining ability effects were Hp6208 for earliness, plant height, grain yield/fed, unpopped kernels% and ear diameter, ZPB2 for earliness, number of kernels/10g, popping volume and unpopped kernels%and Hp6215 for earliness, grain yield and number of kernels/10g.The two hybrids (Sk4016×Hp6215andSk6013×Sk6014)exhibited desirable specific combining ability effects for grain yield and poppingvolume,respectively.}, keywords = {Diallel cross,additive gene effects,non-additive gene effects,Popcorn,Popping volume}, url = {https://jpp.journals.ekb.eg/article_198685.html}, eprint = {https://jpp.journals.ekb.eg/article_198685_d969044f76ed3f4ab2f42eeedd891db7.pdf} } @article { author = {Hamza, Ali and Abdel-Kafie, Omaima and Helaly, Ahmed and Mousa, Mona}, title = {Enhancing vegetative growth, flowering quality and chemical constituents of Arabian jasmine (Jasminum sambac Ait.) var. Double petals sprayed with NPK, active dry yeast and ascorbic acid}, journal = {Journal of Plant Production}, volume = {12}, number = {8}, pages = {887-893}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2021.198843}, abstract = {In order to studying the influence of foliar spray with different NPK levels (0.0, 1.0, 1.5 and 2.0 g/ l) as main factor and tap water, dry yeast(Y)at 0.5g/ l, ascorbic acid (AA) at 150 ppm and 0.5g/ l Y+150 ppm AA as sub factor as well as their interaction treatments on Arabian jasminevar. Double petals, a pot experimental study was conducted during 2016 and 2017 seasons at Floriculture Unit of Hort. Dept., Fac. Agric., Mansoura Univ., Egypt. These treatments (4×4) were arranged in a split-plot design with three replications. The obtained results revealed that, NPK fertilization level at 2 g/ l significantly increased Arabian jasmine growth (plant height, branches and leaves number per plant, leaves fresh and dry weights per plant and total leaves area per plant), flowering parameters (flowers number per plant, flowers fresh weight per plant, flower diameter/ plant, flower stalk length and petals number per flower) and chemical constituents (chlorophyll a, b and a + b contents, total nitrogen %, total phosphorus % and potassium%) compared to the lowest levels under study and control (sprayed with tap water). Also, using 0.5 g/ l Y+150 ppm AA recorded the highest values of all measured parameters compared to the other treatments under study. In general, the results of this study suggested that foliar applications of 2 g/ l NPK could help enhance Arabian jasmine(Jasminum sambac Ait.) growth, flowering and total chlorophyll content when interacted with dry yeast at 0.5 g/ l + ascorbic acid at 150 ppm.}, keywords = {Arabian jasmine,NPK,yeast,ascorbic acid,plant growth,flowering,total chlorophyll}, url = {https://jpp.journals.ekb.eg/article_198843.html}, eprint = {https://jpp.journals.ekb.eg/article_198843_6f0e149a9e0a731608ba5d50c93d6e24.pdf} } @article { author = {Alsebaey, R.}, title = {Combining Ability and Heterotic Groups for some New Whit Maize Inbred Lines}, journal = {Journal of Plant Production}, volume = {12}, number = {8}, pages = {895-898}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2021.198847}, abstract = {The main objectives of this study was to estimate combining ability and heterotic groups for 16 white maize inbred lines using line × tester mating design.Thirty-two whitethree-way crosses resulting fromcrosses between 16 inbred lines with two testers(SC 131 and SC Gm 1)and the check TWC  321  were evaluated at three Research Stations; Gemmeiza, Sakha and Mallawyin 2020 season.Mean square analysis cleared the variability among lines and testers and their interaction for most studied traits. The non-additive gene effects were more important than additive ones in the inheritance of days to 50% silking and grain yield, while the additive ones were the predominant for ear height and plant height. The best inbred lines for general combining effects were Gm5, Gm 6 and Gm 7 for days to silking (earliness),plant height (shortness) and ear height(lower ear position),and Gm 12,Gm 13 and Gm 14 for grain yield. The two crosses; Gm 14 x SC131 and Gm 14 x SC Gm 1 were significantly out-yielded compared with the check TWC 321 (31.3 ard./fed), therefore they will be taken in the next stage for more accurate evaluation in the national program of maize. Sixteen inbred lines were classified into the following two heterotic groups using HSGCA for grain yield group-1 (tester SC131) included inbred lines Gm 2, Gm 5, Gm 6, Gm7,Gm8, Gm13 and Gm 16while group-2 (tester SC Gm1) included inbred lines Gm1,Gm9, Gm 11 and Gm 15. These groups could be used in breeding programs for selecting the best parents in making hybrids}, keywords = {Zea mays,General combining ability,Specific combining ability,additive gene effects,Non additive gene effects}, url = {https://jpp.journals.ekb.eg/article_198847.html}, eprint = {https://jpp.journals.ekb.eg/article_198847_27bebb6ef90e19f022eed810920d0c7c.pdf} } @article { author = {Abdel-Moneam, M. and Sultan, M. and Seadh, S. and El-Metwally, Lamiaa}, title = {Combining Ability and Heterosis for Earliness, Growth and Biological Yield of Some Flax Genotypes at Normal-irrigation and Water-Shortage Environments}, journal = {Journal of Plant Production}, volume = {12}, number = {8}, pages = {899-907}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2021.198856}, abstract = {Six parents and their 15 F1 crosses were evaluated in 2019/2020 season under normal and drought-stress for earliness and its related traits of flax. A filed experiment was devoted for each normal and drought-stress), using RCBD with three replicates.  Mean squares of general and specific combining abilities were highly significant for most traits, indicating the relative importance of both additive and non-additive influences of genes in the inheritance of these traits. δ2GCA δ2/SCA variances under normal-irrigation and drought-stress were greater than unity for days to maturity, plant height at harvest and stem diameter. P1 was found to be the best combiner for earliness under both conditions. While, P4 and P5 were good combiner for plant height at flowering and at harvest and biological yield under drought conditions. The best heterosis (mid and better parent) for the earliest hybrids was recorded by hybrid No. 11 under normal and hybrid No. 7 under drought. Hybrids No. 6 over mid-parents and No. 11 over better-parents under drought for days to maturity shown the best heterosis. While, hybrids No. 8 and 10 recorded the best heterosis for plant height at flowering under both situations. But, the best heterosis were recorded by hybrids No. 2 and 8 for plant height at harvest and hybrids No.7 and 13 for technical stem length shown under normal irrigation conditions.  The hybrids No. 4 and 9 for biological yield per plant showed the best heterosis over mid and better parents under normal and drought conditions, respectively.}, keywords = {Flax,Combining ability,Heterosis,earliness,Growth,biological yield}, url = {https://jpp.journals.ekb.eg/article_198856.html}, eprint = {https://jpp.journals.ekb.eg/article_198856_9f524bc4cec5bb2fed0d47b85aa695a4.pdf} } @article { author = {Ash-shormillesy, Salwa and Yasin, M.}, title = {Effectiveness of Organic and Bio-Fertilization on Reduce Rates of Mineral Nitrogen Fertilizers and Impact on Productivity of some Wheat Cultivars}, journal = {Journal of Plant Production}, volume = {12}, number = {8}, pages = {909-919}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2021.198861}, abstract = {  Present study was conducted during two winter seasons of 2017/2018 and 2018/2019 in farm (Ghazala Village), Faculty of Agriculture, Zagazig University, to evaluate the impact of seven fertilization treatments i.e. F1: humic acid (4 kg/fad), F2: F1 +50%  recommended dose of nitrogen (37.5 kg N/fad), F3: commercial organic-fertilizer (3G-101), F4: F3+50% recommended dose of nitrogen (37.5 kg N/fad ), F5: yeast extract, F6: F5+ 50%  recommended dose of nitrogen(37.5kg N/fad ) and F7: 75kgN/fad (recommended dose), on productivity of two  wheat cultivars i.e. Shandawel-1 and Misr 2. Results alluded that Shendawel-1 cultivar surpassed Misr2 cv in each of chlorophyll content (SPAD unit), ​​flag leaf area (cm2), spike length (cm), number of spikelets and grains/spike, 1000 grain weight (g), spike weight, number of spikes/m2, biological, straw and grain yields as well as harvest index (HI). Treatment F2 outperformed others in chlorophyll content. Treatment F6 recorded the highest value in each of: flag leaf area, plant height, spike length, number of spikelets and grains/spike, 1000 grain weight, number of spikes/m2, biological, straw and grain yields/fad and protein content. Treatment F1 gave the lowest values for the previous traits, but give higher harvest index compared to treatment F5. Grain yield/fad positively and significantly correlated with plant height, spike length, No. of spikletes/spike, 1000 grain weight, spike weight and number of spikes/m2.}, keywords = {Wheat,cultivars,yeast extract,Humic acid,organic fertilization}, url = {https://jpp.journals.ekb.eg/article_198861.html}, eprint = {https://jpp.journals.ekb.eg/article_198861_828f7c9d06cca50f51e769e53d7b1eb0.pdf} } @article { author = {K., Entsar and Gharib, M.}, title = {Optimization of Sweet Pepper Productivity in Greenhouse under Natural Salinity Stress}, journal = {Journal of Plant Production}, volume = {12}, number = {8}, pages = {921-928}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2021.198867}, abstract = {Planted sweet pepper crop under greenhouse is subjected to salt stress which leads to a decline in overall performance of the crop. The purpose of these experiments was to see how Moringa oleifera leaf extract (1:30 v/v MLE to tap water) and salicylic acid (SA; 1mM) affected the growth, physiochemical attributes, and yields of sweet pepper (Capsicum annuum L.) plants grown in greenhouses with saline soil (EC= 2.41 dSm-1 ) and irrigation water (EC= 2.01 dSm-1  ). In sweet pepper plants, MLE or SA applied as a seedling spray or plant foliar spray improved growth characteristics (i.e., plant height, number and area of leaves per plant, and plant dry weight) as well as physiochemical attributes (i.e., total chlorophylls, total soluble sugars, free proline and ascorbic acid, and N, P, and K contents). In addition, early and total yields were improved when compared with the controls (seedlings and plant foliar spray with tap water). Combined treatments of MLE and SA (i.e., seedlings spray with MLE + plant foliar spray with MLE, seedlings spray with MLE + plant foliar spray with SA, seedlings spray with SA + plant foliar spray with MLE and seedlings spray with SA + plant foliar spray with SA) significantly increased all abovementioned parameters compared to the control. The combination of seedlings spray with MLE + plant foliar spray with MLE produced the most significant increase in total plant fruit weight over the control, with 39.4 % and 60.2 % in the first and second seasons, respectively. The combined treatment of seedlings spray with MLE + plant foliar spray with MLE then seedlings spray with MLE + plant foliar spray with SA gave the highest results of the growth and yields of sweet pepper plants by mitigation the injury of salinity stress (soil and irrigation water).}, keywords = {pepper,Growth,yield,salinity,Salicylic acid,Moringa oleifera extract}, url = {https://jpp.journals.ekb.eg/article_198867.html}, eprint = {https://jpp.journals.ekb.eg/article_198867_05cbfb0005f3f58c595c9ceb05a4b514.pdf} } @article { author = {Hamam, M. and Moustafa, Y. and Ali, M. and S.H., Asmaa}, title = {Effect of Foliar Spray with Licorice Root Extract on production and Quality of Egyptian and Chinese Garlic}, journal = {Journal of Plant Production}, volume = {12}, number = {8}, pages = {929-940}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2021.198879}, abstract = {Garlic is a very important crop in Egypt and in whole world and cultivation of garlic in new reclaimed soils is broadly increasing. Thus, these experiments were conducted in a newly reclaimed sandy soil of the experimental farm of the Faculty of Agriculture, New Valley University, Kharja, Upper Egypt during the two successive seasons of 2018/2019 and 2019/2020. The experiments aimed to study the effect treatment of licorice root extract on garlic cultivars and on growth behavior and bulbs production and quality. Results showed that all growth traits of garlic plants, production of bulbs, and quality of those bulbs were enhanced by cloves soaking and plants foliar sprayed with licorice root extract using different concentrations; 0.0, 2.5, 5.0, and 7.5 g/L. Hence, these promising cheap treatments could be recommended for garlic producers who plant garlic under similar environmental conditions to get high yield of garlic green or dry bulbs with high qualities suitable for local production or exportation.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_198879.html}, eprint = {https://jpp.journals.ekb.eg/article_198879_338dcbc0befbf8af5d4229d71cd5f8d8.pdf} } @article { author = {EL-Gohary, Y. and el Rashidy, Zainab}, title = {Heterosis and combining ability for yield and yield components in bread wheat under different nitrogen rates}, journal = {Journal of Plant Production}, volume = {12}, number = {8}, pages = {941-947}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2021.86778.1045}, abstract = {A one-way diallel cross among six common wheat genotypes were evaluated in F1 at Etay EI-Baroud Agricultural Research Station during 2018/2019 and 2019/ 2020 seasons. These diallel F1 crosses were made to determine heterosis and types of gene action for grain yield/plant and its attributes traits under different nitrogen rates. Highly significant and positive heterotic effects for 1000-kernel weight were detected in (P2×P3), (P2×P4), (P1×P5) and (P2×P6) at the three nitrogen rates. Meanwhile, the crosses (P1×P4), (P1×P6), (P4×P6) and (P5×P6) recorded positive and significant heterotic effects for 1000-kernel weight under normal (75 kg N/fed.) nitrogen rate. The grain yield/plant showed significant and negative heterotic effects relative to the better parent for most crosses at the three nitrogen rates except (P1×P2), which showed positive and significant heterotic effects. General combining ability (GCA) and specific combining ability (SCA) mean squares were highly significant for all traits, and GCA/ SCA ratios were greater than unity for all studied traits at three nitrogen rates.The parental genotypes P1(Gemmeiza 12), P2 (Gemmeiza 9), P3 (Giza 171), P4 (Line 1), P5 (Line 2), P6 (Line 3) appeared to be the best general combines for grain yield and some of its components in the three nitrogen rates. The cross combinations (P1×P2), (P2xP3) and (P2xP4), (P2xP5), (P2xP6), (P3xP5), (P4xP5), (P5xP6) were superior to their parental genotypes for heterosis relative to better parent, general and specific combining ability under three nitrogen rates. }, keywords = {Bread wheat,Nitrogen rates,Heterosis,Combining ability}, url = {https://jpp.journals.ekb.eg/article_198892.html}, eprint = {https://jpp.journals.ekb.eg/article_198892_bf9e2b8d696367f899ab92f19b56a669.pdf} } @article { author = {Badawy, Shimaa and Sorour, Sobhy and Hamad, S. and B, Asmaa}, title = {Effect of nitrogen and potassium fertilizers on wheat productivity under different soil moisture contents}, journal = {Journal of Plant Production}, volume = {12}, number = {8}, pages = {949-957}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2021.87760.1046}, abstract = {Wheat cv. Sakh 93 was planted on a clay soil at Agricultural Research Station Farm, Kafrelsheikh, in 2014/2015 and 2015/2016 seasons to investigate the influence of irrigation regime (irrigation at 40, 55, and 70% depletion of available soil moisture, DASM), nitrogen rates (50,70 and 90 kg N/fed.) and potassium rates (0,12 and 24 kg K2O/fed.) on productivity and certain water relations. The reduction in DASM from 70% to 40% at irrigation and increasing either nitrogen or potassium rates resulted in significant increases in spike number m-2, grain number/ spike, 1000-grain weight,  grain yield, water Applied (WA), water Consumptive Use (WCU), productivity of Water Applied (PWA), productivity of Water Consumptive Use (PWCU), stored Water (SW). Irrigation at 55% DASM with 70 kg N and 24 kg K2O/fed-1 recorded the best values of PWA for grain (1.12 and 1.09 kg grain m3 AW). Raising the nitrogen rate from 50 to 90 kg N fed-1 significantly raised water applied efficiency (WAE %) in both seasons. Irrigation  at 70% DASM with 90 kg N and 0 kg K2O fed-1 produced the highest values of WAE (86.43 and 86.98 %), while irrigation  at 40% DASM with 50 kg N and 24 kg K2O/fed produced the lowest values (71.77 and 71.60 %) in both seasons.  In conclusion, irrigation at 55% DASM with application of 70 kg N and 12 or 24 kg K2O fed-1 was the best treatment, which resulted in high grain yield with fewer amounts of applied irrigation water and consumptive use.}, keywords = {wheat productivity,Nitrogen fertilization,potassium fertilization,soil moisture,water relations}, url = {https://jpp.journals.ekb.eg/article_199034.html}, eprint = {https://jpp.journals.ekb.eg/article_199034_7a6bc60c3f7ec471db0473a533797fb2.pdf} } @article { author = {Bughdady, A. and Kenawey, M.}, title = {Effect of ascorbic and salicylic acids on faba bean (Vicia faba L.) productivity under calcareous soils conditions}, journal = {Journal of Plant Production}, volume = {12}, number = {8}, pages = {959-963}, year = {2021}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2021.199906}, abstract = {The field work was conducted at the Experimental Farm of Desert Research Center at Mariout during two winter successive seasons, 2017/2018 and 2018/2019, to study assess response to seed soaking with ascorbic acid (AS), (0, 25, 50 and 75 ppm) and foliar spraying with salicylic acid (SA) at (0, 50, 100 and 150 ppm) on yield and yield components and seed chemical composition on faba bean cv. (Mariout-2). Obtained results in this study clearly proved the role of AS and SA in increasing calcareous of faba bean plants. The highest rates from (AS) was increased significantly yield, yield components and nitrogen content in both growing seasons. Either seed soaking in AS, (25 ppm) or foliar application of SA (50 ppm) exhibited significant increments in all yield parameters compared with untreated control. Moreover, rate of AS treatment in seed soaking at (50 ppm) and foliar spray with SA at 100 ppm induced significant increases in the protein and N content of faba bean seed compared with the control groups. The magnitude of increments was pronounced in response to 75 ppm seed soaking of ascorbic acid and 150 ppm of SA as a foliar spray on faba bean cv. (Mariout- 2), which led to positive changes in all studied parameters}, keywords = {Faba bean,ascorbic acid,Salicylic acid,yield,Calcareous Soils}, url = {https://jpp.journals.ekb.eg/article_199906.html}, eprint = {https://jpp.journals.ekb.eg/article_199906_763c0ddca78b22b9f5d72f8ef2bfdbd2.pdf} }