2024-03-28T17:05:54Z
https://jpp.journals.ekb.eg/?_action=export&rf=summon&issue=11396
Journal of Plant Production
2090-3669
2090-3669
2020
11
2
Phytochemical Characterization, Antioxidant and Antimicrobial Activities of Brassica juncea (L.) Mustard Seeds Aqueous and Ethanolic Extracts
Sajida
Aziz
Mustafa
El-Zayat
Ayman
El-Khateeb
Brassica juncea (Brassicaceae) is used in folklore medicine and in local recipes as source of mustard oil. In the present study, phytochemical characterization, antioxidant activity, antimicrobial potential and structural elucidation using LC/MS-MS of the crude water and 30% ethanol Brassica juncea extracts were done. 30% ethanol extract exhibited antioxidant activity higher than water extract by using DPPH• assay with IC50 value of 0.170 and 0.390 mg extract/mL, and by using ABTS•+ assay with inhibition percent values of 75.5% and 68.9% for 30% ethanol and water extracts, respectively. water extract was slightly higher than ethanol extract in alkaloids and phenolics content while that of ethanol was higher than water in the flavonoids content. The water extract expressed no antimicrobial potential against any of the tested pathogenic strains while that of 30% ethanol expressed broad antimicrobial potential against Staphylococcus aureus, Staphylococcus epidermidis, Bacillus subtilis, Pseudomonas aeruginosa, Klebsiella pneumonia, Candida albicans, Erwinia Carotovora, Proteus vulgaris Eterobacter cloacae, Shigella sp. and Streptococcus pyogensis. LC/MS-MS profiling of the 30% ethanolic extract showed that caffeic acid, p-coumaric acid, epigallocatechin gallate, myricetin, apigenin, quercetin-3-O-(caffeoyl)-glucoside and quercetin present in this extract might be responsible for the antioxidant and antimicrobial activity of 30% ethanol extract.
Brassica juncea
30% ethanol
Antioxidant activity
Antimicrobial potential
Phenolics
Flavonoids
LC/MS-MS
2020
02
01
85
88
https://jpp.journals.ekb.eg/article_79099_919a2e486bbeb59856e26f08ea9ab493.pdf
Journal of Plant Production
2090-3669
2090-3669
2020
11
2
Response of some New Chickpea Genotypes to Rhizobial Inoculation and Foliar Application with Plant Growth Promoting Rhizobacteria (PGPR)
Rehab
Abd El-Rahman
H.
Abo Taleb
A field experiment was carried out during 2014/2015 and 2015/2016 seasons at Sids research station, Bani Suef governorate, Agricultural Research Center (ARC), to evaluate the response of eight chickpea genotypes of a wide divergent origin were used; namely, seven introduced from IRCADA G1 (FLP0893C), G2 (S091013), G3 (S090642), G4 (FLP0846C), G5 (FLP0872), G6 (FLP0847C) and G7 (FLIP08-141C) and one local variety Giza 195 (G8) cultivated under Egyptian soil conditions to bacterial applications as rhizobial inoculation alone or in combination with foliar application of pink-pigmented facultative methylotrophic bacteria (PPFMs), bacteria as The Plant Growth Promoting Rhizobacteria (PGPR) comparing with un-inoculated control fertilizered with 50 kg N/fed. Results showed that, rhizobial inoculation in combination with foliar application with PPFMs bacteria produced the highest average chickpea seed yield per feddan (6.48 and 6.86 ardab) in both seasons, respectively, with no significant difference from rhizobial inoculation alone which produced 6.08 and 6.75 ard. fed.-1. Both bacterial treatments recorded the highest values of all studied traits. Concerning studied chickpea genotypes, Giza 195 (G8) was the best in all studied characters with no significant difference from G3 (S090642) and G6 (FLP0847C). The highest chickpea seed yields were obtained from Giza 195(7.75 and 8.15 ard. fed.-1) followed by G3 (7.08and 7.19 ard. fed.-1) and G7 (7.51 and 7.70 ard. fed.-1) under the combination of rhizobial inoculation and foliar application with PPFMs bacteria in both seasons, respectively. These results demonstrated the necessity of inoculation with specific rhizobial alone or in combination with PGPR bacteria to maximize growth and yield of chickpea genotypes.
chickpea
rhizobial inoculation
PPFMs
PGPR
2020
02
01
89
94
https://jpp.journals.ekb.eg/article_79101_134f3209a4a0a1484d55a47856f1f6ad.pdf
Journal of Plant Production
2090-3669
2090-3669
2020
11
2
Evaluation of some Intraspecific Cotton Crosses for some Quantitative Characters at Three Locations
Y.
AL-Hibbiny
B.
Ramadan
A.
EL-Fesheikawy
The objectives of this study were to determine the heterosis, combining abilities, proportional contributions, genetic components and heritability measurements of some yield, its components and fiber quality characters for six genotypes belong to Gossypium barbadense, L viz., Giza 95 (L1), Giza 87 (L2), and Giza 93 (L3), which used as a parental lines (L) as well as, Suvin (T1), Karshenky (T2), and 10229 (T3) which used as a testers (T), by using line x tester analysis (LxT) across three locations i.e. Sakha, Sids and Shandweel during 2017 and 2018 seasons. The variances due to the genotypes, locations (Loc.), parents (P), crosses (C), (P vs. C), L, T, (parents x loc.) and (P vs. C x loc.) were significant for most traits under study. Among the parents, Giza 95 (L1) and Karshenky (T2) were highest yielding parents for most studied yield traits, Giza 87 (L2) and Suvin (T1) for most studied fiber traits. According to useful heterosis and desirable specific combining ability effects estimations, the promising recombination's i.e., (L1xT1), (L2xT2), (L3xT1), (L3xT2) and (L3xT3) were the highest values for most studied traits. Proportion contribution of testers were the high values for No. of bolls/plant, seed cotton yield per plant, boll weight and fiber strength traits. Meanwhile, lines contributions were the highest for other traits. The non-additive genetic effect was larger than additive ones for NB/P, SCY/P, LY/P and length uniformity index. Meanwhile, heritability in broad sense (h2b %) were higher than the values of narrow sense (h2n %) for all characters under study.
Barbadense cotton
Combining ability
Heterosis
Gene action and Heritability
2020
02
01
95
103
https://jpp.journals.ekb.eg/article_75737_9428316b9ba07fd9e9ea38e39a1b3eef.pdf
Journal of Plant Production
2090-3669
2090-3669
2020
11
2
Production of New F1 Hybrids Cucumber (Cucumis sativus, L.) in Open Field
Gehan
Mohamed
This investigation was carried out at Kaha Vegetable Research Farm, Kalubia Governorate, Egypt 2015 and 2016 to study heterosis percentage over mid and better parents, potence ratio and correlation coefficient between traits for some important economical characters in cucumber. Five different parental lines of cucumber obtained from Cornell University which included parental line"1380-1"(P1); parental line"87- 674-1"(P2); parental line"99-340"(P3); parental line"99-357"(P4) and parental line"99-347"(P5) were carried out by 5 x 5 half diallel mating design, the experimental design was randomized complete block with three replicates. The obtained results generally that the utilized parental lines appeared to have wide ranges of diversity in the different studied traits and their indicated differences were found significant in the most situations. The results exhibited that the highest significant heterosis (47.30%) was reported for early yield per feddan(ton) followed by total yield per feddan (45.81%) and fruit shape index (40.78%), while the largest significant heterosis over better parent (33.97 and 32.86%) was recorded for early yield per feddan followed by (31.53 and 31.50% ) for total yieldThe results illustrated that plant length(cm) and number of leaves per plant exhibited significant and positive genotypic and phenotypic correlation with fruit length(cm), fruit shape index(cm), early yield per feddan(ton), average fruit weight(g), number of fruits per plant and total yield per feddan (ton). These positive correlations indicated that a selection programme based on any of these traits will be resulted in increasing yield. Negative and significant association was estimated with days to anthesis first female flower and fruit diameter(cm).
Cucumber
Heterosis
F1 hybrids
potence ratio
correlation
yield
2020
02
01
105
111
https://jpp.journals.ekb.eg/article_79103_45e1fcc9bfcd49aa7fd3080d02388286.pdf
Journal of Plant Production
2090-3669
2090-3669
2020
11
2
Improving Snap Bean Yield and Quality Through Organic Fertilizer additives and Citric Acid Spraying under Newly Reclaimed Land Conditions
Hoda
Ahmed
Snap bean (Phaseolus vulgaris L.) plants are sensitive to water and nutrient shortages, especially during flowering and pod setting stages. Hence, The present study aimed to investigate the benefits of citric acid foliar spray(CA) at 1.5g/l alone and combined with different levels of farmyard manure (FYM); control (100% mineral fertilizers) and 25% , 50% 75% and 100% of the recommended rate of FYM on snap bean cv. Bronco grown in sandy soil conditions. The study was conducted in Qalabshu, Dakahlia Governorate, Egypt during two seasons of 2015 and 2016 in a complete randomized block design (CRBD). The results showed that CA + 50% FYM treatment increases almost studied parameters either vegetative growth or pod yield over the control and other treatments. Although the treatment of CA + 100% FYM gave the highest values of pod qualities i.e., chlorophyll content (2.13 and 2.27), protein% (15.8 and 17.1) and TSS% (7.9 and 8.6) in both season, respectively, it had the lowest values of fresh pod yield (around 17.5% relative to control). Overall, the results indicated that organic fertilization is very important procedure in enhancing water and minerals status of new reclaimed soils. Moreover, citric acid as an antioxidant is effective in minimizing the negative impacts of water and mineral shortages of sandy soils. Accordingly, it can be recommended to fertilize snap bean plant grown in sandy soil by 50% FYM + 50% mineral fertilizers and spraying the plants by citric acid (1.5g/L) to obtain the highest fresh pod yield with best quality.
Phaseolus vulgaris L
farmyard manure
Citric acid
pod yield
pod quality
2020
02
01
113
118
https://jpp.journals.ekb.eg/article_79104_eb6d671c2025419bdd257ffb48ffad6f.pdf
Journal of Plant Production
2090-3669
2090-3669
2020
11
2
Impacts of Using some Fertilization Treatments in Presence of Salicylic Acid Foliar Spray on Growth and Productivity of Coriandrum sativum L. Plant
Y.
Ghatas
The present study was conducted during ( 2017-2018 and 2018-2019) seasons, at the Hort. Dept., Fac., of . Agric., Benha Univ., Egypt to study the effect of chemical fertilizers (NPK) as a full dose and biofertilization (Bio.) consisting of a mixture of (Nitrobein + Phosphorein) in the presence of Salicylic acid ( SA) foliar spray at 150 ppm in a single or combinations inbetween them on vegetative growth ,grain yield ,chemical constituents parameters and oil productivity of coriander plants comparison with control plants in both seasons. The results indicated that different treatments of NPK mineral fertilizer, biofertilization and salicylic acid treatments , either alone or mixed among them, resulted in a significant increase in the growth ,chemical constituents parameters and oil productivity in both seasons. The use of 100% NPK achieved the highest results in the characteristics of growth, yield and chemical composition, followed by the use of the treatment of 75%NPK +Bio.+SA, where it achieved a significant maximize in this concern,whereas the treatment of 75% NPK + Bio. ranked the third in this context as compared with untreated plants in both seasons. Also, the combined treatment of 75% NPK + Bio. + SA gave the highest values of oil productivity. Consequently, in order to achieve the highest values of growth and chemical constituents ,it is preferable to treate coriander with NPK at 100% or 75%NPK + Bio. + SA. Also, it is possible to treat coriander plant with 75% dose NPK +Bio. + SA to improve oil productivity.
Coriandrum sativum*NPK* Biofertilizer*Salicylic acid*volatile oil *chemical compositions
2020
02
01
119
125
https://jpp.journals.ekb.eg/article_79105_784270cd028d4440a9e0e9d7a96c20a0.pdf
Journal of Plant Production
2090-3669
2090-3669
2020
11
2
Determination Critical Periods of Weed Competition and Weed Control Influence on Yield Productivity of Sweet Pepper (Capsicum annuum L.)
R.
Galal
A.
Hassanein
A.
Fedlallah
Field experiments were carried out at Sids Research Station, Agricultural Research Center during 2016 and 2017seasons to determine the critical period of weed competition in pepper yield and study the effect of some pre-emergence herbicides on controlling weeds and its reflection on yield and its component of pepper. It could be concluded that some safe alternatives to mechanical weed control hand hoeing (twice), are the use of mulching by black polyethylene or reduced rate of pendimethalin (0.850 L.\fed) and butralin (1.25 L.\fed.) for weed control during the pepper crop to produce good fruit yield free from herbicidal residues. Mathematical models between weed-free duration periods were quadric 8.3 and 7.0 weeks from transplanting. The application of pendimethalin at 0.850 l.\feddan supplemented with one hand hoeing and black polyethylene mulch were the best treatments to reduce weed biomass, followed by hand hoeing twice and butralin at 1.25l.\feddan supplemented with one hand hoeing to face weed problem in critical period of weed competition and herbicidal residues in edible pepper fruits were below the maximum residue limit. The relationship between all characters were negatively and significant correlated with weed biomass and positive with pepper fruit yield in both seasons. Practical implications of this research are that planting pepper need weed management in 8 weeks from transplanting from weed competition which can be achieved by either the use of pendimethalin or butralin at a full recommended rates or followed by one hand hoeing or black polyethylene mulching to prevent early weed competition to pepper crop.
Pepper(capsicum annuum L.)
critical period
Competition
weed control
residues herbicides
2020
02
01
127
137
https://jpp.journals.ekb.eg/article_79106_b5a92890d47a8d529fc4a7f2176f56fa.pdf
Journal of Plant Production
2090-3669
2090-3669
2020
11
2
Improvement Wheat Germination by Using some Biostimulants Substances
M.
Badawi
S.
Seadh
Wafa
Emhimmid
A laboratory experiment was carried out at Seed Testing Laboratory, Agronomy Department, Faculty of Agriculture, Mansoura University, Egypt, during November and December 2018 to study the effects of application methods and seeds treatments with some biostimulants on germination parameters of bread wheat Misr 2 cultivar. The experiment was conducted in factorial experiment in Completely Randomized Design (CRD) with 4 replications. The experiment included two factors. The first factor included two application methods with some biostimulants (soaking and priming). The second factor integrated with eleven seed treatments with biostimulant substances. The obtained results showed that the priming method surpassed soaking method in final germination percentage, germination index and co-efficient of germination. Nevertheless, soaking method surpassed priming method in abnormal seedlings %, speed germination index, mean germination time and germination energy %. Treating seeds with yeast extract surpassed the other studied treatments in speed germination index, mean germination time and germination energy percentage. Conversely, treating with mixture of ascorbic acid and salicylic acid surpassed other studied treatments in final germination percentage and germination index. However, treating with mixture of humic acid + amino acid + algea extract + yeast extract surpassed other studied treatments in abnormal seedlings percentage. It could be recommended that priming seeds of bread wheat Misr 2 cultivar with the mixture of ascorbic acid and salicylic acid at the rate of 200 mg/L of each or yeast extract at the rate of 100/L as an effective way for improving germination parameters.
Wheat
Soaking
priming
biostimulants
germination parameters
2020
02
01
139
144
https://jpp.journals.ekb.eg/article_79107_8d55cf0bdc23ce3c6053da4127bf54c3.pdf
Journal of Plant Production
2090-3669
2090-3669
2020
11
2
Response of Potato Growth, Yield and Quality to Fulvic Acid and Biochar Applications under Different Levels of Chemical Fertilization
H.
El- Metwaly
Two field trials were conducted on potato cv. Spunta, in private farm at Kafr Meet Faris, Dakahlia Governorate, during 2018 and 2019 seasons to study the effect of NPK levels (100%, 75% and 50% NPK of the recommended rate) either single or in combination with some applications of fulvic acid and biochar treatments (untreated, fulvic acid at 10 kg/fed, biochar at 5 m3/fed and fulvic acid at 10 kg/fed + biochar at 5 m3/fed)) on plant growth, yield and its quality as well as chemical constituents of plant foliage and tubers. Results showed that the most studied characteristics of potato plants were significantly increased with increasing NPK-level up to 100%. Besides, the most interesting observation was the increasing of the yield and its components by 100% NPK level. Moreover, this treatment significantly increased concentration of all chemical constituents in foliage and tubers comparing with those of the other treatments. Application of fulvic acid and biochar treatments caused significant increases in the most studied parameters as comparing with the control treatment. The highest record data was obtained from application of fulvic acid + biochar. The combined treatments of NPK levels and fulvic acid and biochar treatments were generally more effective on the most studied parameters than with single ones. The best results were obtained by 75 % NPK level with fulvic acid + biochar treatment. Therefore, this treatment could be recommended for raising potato yield and improving tuber quality under similar conditions to this work.
potato
NPK mineral fertilizers
fulvic acid and biochar
yield and tuber quality
2020
02
01
145
151
https://jpp.journals.ekb.eg/article_84607_3c33c97e5ec1b934fe27cb1b6d17a304.pdf
Journal of Plant Production
2090-3669
2090-3669
2020
11
2
Impact of Accelerated Ageing Process on Viability of Egyptian Cotton Seeds
M.
Sultan
M.
Abdel-Moneam
Y.
EL-Mansy
B.
Goda
Doha
Attia
Genetic analysis was employed to investigate the influence of aging treatments on cottonseed viability and to decipher the inheritance pattern of seed quality traits (electrolyte leakage,seed imbibing %, germination % and root and shoot fresh weights under different regimes of accelerated ageing treatments. The seeds of 36 genotypes were artificially aged at 40 ℃ and 95–100 % relative humidity for control (T0) and accelerated ageing treatments, T1= 24 hours, T2 =48 hours and T3 =72 hours). Analysis of variance revealed that genotypes mean squares were significant for most studied seed quality traits under control and accelerated aging, except for electrolyte leakage at second, third and fourth treatment, and seed imbibing % at accelerated aging condition. The deterioration effects of stress treatments on seed quality traits showed that, the electrolyte leakage and seed imbibing % were increased with the increasing of aging stress. Increased electrolyte leakage with aging confirmed the inferior quality of aged seeds. However, germination % from T2 to T3, root fresh weight and shoot fresh weight from T1 to T3 were decreased with the increasing of aging stress. The decreases in seedling growth traits by accelerated aging may be a result of progressive loss of seed viability and vigor. Seed index had positively correlated with electrolyte leakage at second treatment and germination %. This indicate that higher seed index may improve electrolyte leakage and seed imbibing % (reduce the ability to both leakage into solution and absorb humidity) under severity storage condition, this relation help to understand the ability of cottonseed storage. Seed imbibing % exhibited negative and significant association with seed germination at second ageing. The genotypic correlations of seed index with other seed quality changed from control (+) to accelerated aging (-), indicating the high effect of aging treatment on the relation between these traits except for germination %.
Cotton
accelerated ageing
seed quality
deterioration
correlation
2020
02
01
153
157
https://jpp.journals.ekb.eg/article_79108_214b802527cf9986521b2f2a54ff4461.pdf
Journal of Plant Production
2090-3669
2090-3669
2020
11
2
Effect of Bio-Fertilization and Foliar Spraying with some Micro-Elements on Growth and Productivity of Two Faba Bean Cultivars
A.
Nour El-Din
M.
Ibrahim
S.
Abdel-Haleem
M.
El-Said
The aim of this study was to investigate the response of two faba bean cultivars (Misr-1 and Giza-40) to bio-fertilizers (Bacillus megatherium var. phosphaticum and Psedomonas) and foliar spraying with some micro- elements (Fe- Zn and Mn) on growth, yield and seeds quality. Two field experiments were carried out during winter seasons of 2017/2018 and 2018/2019 at the Experimental Farm of Agricultural Res. Center, Al-Azhar University , Assuit Governorate, Egypt. Split-split plot design was used with three replicates , where faba bean cultivars were assigned to the main plots , foliar spraying were distributed randomaly in the sub plots and bio-fertilizers were located in the sub-sub plots . Results concluded that faba bean cultivars exhibited significant difference in plant height, number of branches/plant, number of pods/plant, seed yield/plant, 100-seed weight , straw yield/fed , protein and phosphorus percentage of seeds in both seasons while faba bean cultivars exhibited significant difference in seed yield/fed in first season only. Where, cultivar Misr-1 superior to Giza-40 in all studied characters. Also, micro elements foliar application caused a signification increases in all studied characters. Where, the highest values were recorded with Fe spraying in both seasons. Also, application of phosphorein induced significant increases in all previous characters in both seasons. Therefore , this study recommends that Misr-1 cultivar inoculation with phosphorein and foliar spraying with Iron in order to improve the production of faba bean under the condition of Assuit Governorate, Egypt.
Faba bean
foliar
Bio fertilization
Micro elemnts
cultivars
2020
02
01
159
166
https://jpp.journals.ekb.eg/article_84616_2aaabc3586b2c4dcd0292bd9231c383e.pdf
Journal of Plant Production
2090-3669
2090-3669
2020
11
2
Evaluation of some Bread Wheat Genotypes under Soil Salinity Conditions
E.
Abd El-Hamid
M.
El-Hawary
Rania
Khedr
Alaa
Shahein
The present study was carried-out at the Experimental Farm of Sakha Agricultural Research Station, during the two growing season 2017/2018 and 2018/2019 seasons to evaluate sixteen bread wheat genotypes including, 12 promising lines from the local breeding program in addition to four Egyptian cultivars (Giza 171, Sakha 93, Sakha 95 and Misr 3) under normal and soil salinity conditions. The genotypes were arranged in a randomized complete block design with four replications in each condition. The results indicated significant decrease for most studied characteristics by soil salinity. Results based on cluster analysis indicated that Sakha 95 and Giza 171 exhibited the highest grain yield under both conditions, moderate values for both yield reduction ratio and stress susceptibility index especially for Sakha 95, moderate values of physiological characters and protein content but they gave the lowest values of both wet and dry gluten contents. So, that Sakha 95 was considered to be moderate tolerant to soil salinity. Otherwise, Line 4, Line 10 and Misr 3 gave a moderate grain yield at both condition. However, there was insignificant difference in grain yield between Misr 3, Sakha 95 and Giza 171 under soil salinity. Also, Line 4, Line 10 and Misr 3 recorded lowest values for both yield reduction ratio and stress susceptibility index, maximum values for physiological characters and moderate values for quality characters. These genotypes considered as a tolerant genotypes to soil salinity and might be used as parents in breeding programs to produce new genotypes with desirable characters related to soil salinity tolerance.
Triticum aestivum L
saline soil
Stress tolerance indices
cluster analysis
2020
02
01
167
177
https://jpp.journals.ekb.eg/article_79109_6e9dad7d69f0585bfa74281c8c703b43.pdf
Journal of Plant Production
2090-3669
2090-3669
2020
11
2
Post-Harvest Applications by Calcium Chloride and Ascorbic Acid Enhanced Storage Ability of Peach Fruits Cv. Floridaprince
Ameer
Shalan
This study was conducted during two successive seasons (2016 and 2017) to evaluate the effect of post-harvest applications by calcium chloride at 1% and ascorbic acid (AC) at concentrations of 0.5, 1, 1.5 and 2% as soaking treatment on some "Floridaprince" peach fruit quality parameters. The fruits were stored under cold storage conditions (2±1˚C and 90-95% RH) for 30 days and 2 days at ambient conditions after every cold storage period (10 days). The various physiochemical attributes of fruits were recorded after 0, 10, 20, 30 days in cold storage and after 2 days at ambient conditions of every cold storage period. Fruit weight loss (%), SSC (˚Brix), SSC/acid ratio, Relative electrical conductivity (Rec %) of Floridaprince peach fruits were increased in most cases; whereas, titratable acidity (%), V.C (mg/100g) and firmness (Ib/inch2), total phenol (mg/g) and anthocyanin (mg/100g) were decreased with advancing the storage period. However, the results of the study indicated that Floridaprince peach fruits soaked in 1% CaCl2 + 1.5% AC showed a significant deterioration delay in the different determined parameters of Floridaprince peach fruits either at cold storage or ambient condition. Fruits soaked in 1% CaCl2 + 1.5% AC can be successfully stored for 20 days under cold storage conditions and 2 days at ambient conditions after cold storage with highly acceptable sensory quality.
Floridaprince peach
ascorbic acid
calcium chloride
Cold storage and postharvest
2020
02
01
179
188
https://jpp.journals.ekb.eg/article_79373_f59065d5c77ce7062e892c1220460d2b.pdf
Journal of Plant Production
2090-3669
2090-3669
2020
11
2
Estimation of Combining Ability, Heterosis and Heritability in some Egyptian Cotton Crosses
Sh.
Mokadem
M.
Salem
H.
Khalifa
T.
Salem
The present investigation was carried out to study heterosis, general and specific combining ability and heritability in broad and narrow sense for yield and yield component traits using line × tester analysis design for eight parents (five lines and three testers) of cotton and their 15 F1 hybrids. Mean squares due to genotypes (parents and their F1 hybrids) were highly significant for all studied traits revealing a large amount of variability among them. Results indicated that the cross (No. 1) had displayed the best heterosis (desirable) relative to mid-parent and better parent for (L. %) with values 7.76 and 7.25%. While, the cross (No. 4) had showed the best heterosis (desirable) relative to mid-parent and better parent for (S.I.) and (L.I.) with values 10.31, 9.15, 18.04 and 15.77%, respectively. In addition, the estimates of (G.C.A.) effects for (No.O.B. / P.), (B.W.), (S.C.Y. / P.) and (L.Y. / P.) were positive and highly significant in line (L5) in F1 hybrids. In addition, the cross (No. 12) in F1 hybrids had showed positive and highly significant for (No.O.B. / P.), (B.W.) and (S.C.Y. / P.). Results clarified that the estimates of broad sense heritability in F1 hybrids for (No.O.B. / P.), (B.W.), (S.C.Y. / P.), (L.Y. / P.), (L. %), (S.I.) and (L.I.) were moderate to high with values 96.25, 96.04, 97.35, 93.09, 54.70, 97.42 and 41.49%, respectively.
Gossypium barbadense L
line × tester analysis
Heterosis
Combining ability and Heritability
2020
02
01
189
193
https://jpp.journals.ekb.eg/article_79707_0ef3a90d4f7ca852c8219cc21aa9095a.pdf
Journal of Plant Production
2090-3669
2090-3669
2020
11
2
Effect of Amino Acids Spray on Growth, Flowering and Keeping Quality of Gerbera jamesonii L. as a Pot Plant
H.
Abd-Elkader
Hekmat
Massoud
T.
El-Baz
M.
El-Erian
The present research was conducted in the greenhouse of the Experimental Station of Horticultural Research Station in Mansoura, Horticultural Research Institute, Agricultural Research Center during the two successive seasons of 2016 and 2017 from February 21 to June 27. One month oldgerbera plants were obtained from a commercial nursery in Mansoura, planted in 20 cm pots. This investigation aimed to improve some plant growth, flowering parameters and chemical constituents of gerbera (Gerbera jamensonii L.) plants, by using foliar application with some amino acids (glycine, arginine, asparagine, alanine, tryptophan, and a mixture from all of them) at concentrations of 100 ppm plus the control (tap water). Application of amino acid treatments began 30 days after transplanting then repeated after 14 days intervals. The results showed that spraying gerbera plants with a mixture of amino acids at 100ppm gave the highest values of leaves and roots fresh and dry weights, total leaf area, leaf area/ plant, number of leaves/ plant, chlorophyll (A, B and total), total carbohydrates, N, P and K contents in the leaves and biggest flowers diameters (11.23 and 11.83 cm), followed by plants treated with glycine then tryptophan in the two seasons, respectively. Glycine at 100ppm recorded pronounced significant values in flowers stem length and number of flowers (7.66 and 8.00 flowers/ plant) in both seasons respectively, followed by the tryptophan treatment (7.00 and 7.33 flowers/ plant), the third highest was that of the mixture treatment. The lowest values were obtained when plants treated with tap water (control) in both seasons, respectively.
Gerbera (Gerbera jamesonii L) plants
amino acid
flowers characters
2020
02
01
201
206
https://jpp.journals.ekb.eg/article_79110_01e8ef9ca8e030b2753165bbc5b77bba.pdf
Journal of Plant Production
2090-3669
2090-3669
2020
11
2
Response of Growth, Yield and Fruit Quality of Squash Plants to Foliar Application with Potassium Silicate and Magnesium Sulfate under High Temperature Stress
M.
Nada
E.
Metwaly
The present study aimed to improve the green color degree of fruits under high temperature stress during this period of cultivation (beginning of July) as well as to enhance the productivity of squash cv. Esqania by using foliar spray with potassium silicate and magnesium sulfate. In the field experiment, squash plants were sprayed with potassium silicate at rates of 0, 250, 500 and 750ppm and magnesium sulfate at rates of 0, 1000 and 2000 ppm. These field experiments were performed at a private farm in Dekerness district, Dakahlia Governorate, Egypt, in summer seasons of 2018 and 2019. The obtained results referred to that increasing potassium silicate rates from 250 up to 750 ppm gradually increased plant growth, leaf pigments, fruit yield and fruit quality parameters. The best treatment in this regard was 750ppm of potassium silicate compared to other rates. In addition, magnesium sulfate at 2000ppm recorded significantly increase in the above mentioned parameters of squash plant compared to the other one under study. The highest values of all the measured parameters were obtained from the potassium silicate rate of 750ppm combined with magnesium sulfate rate at 2000 ppm compared to control during both seasons. In conclusion, the results of this study suggest that using of potassium silicate and magnesium sulfate as foliar application improved squash plants growth and productivity and fruits green color degree may be attributed to the physical role of the silicon as well as magnesium on enhancing chlorophyll formation or both under heat stress condition.
squash
potassium silicate
magnesium sulfate
fruit quality (green color)
2020
02
01
195
200
https://jpp.journals.ekb.eg/article_79990_f04fd592a0e463402fefe3cbe97f2c33.pdf