{"title":"Yield Potential of Shallots (Allium cepa L. Aggregatum Group) from Several Sources of Planting Material in Tropical Region","authors":"Eddy Triharyant, D. Purnomo","doi":"10.3923/ja.2020.138.144","DOIUrl":"https://doi.org/10.3923/ja.2020.138.144","url":null,"abstract":"","PeriodicalId":42226,"journal":{"name":"Egyptian Journal of Agronomy","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78031364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-01DOI: 10.21608/agro.2020.38200.1223
M. Hussein, A. M. El-Saady, M. Gobarah, A. A. El-Khier
THIS INVESTIGATION aimed to study the response of growth and mineral status of sugar beet plants which sprayed with antioxidant, citric acid (DW, 75 and 150ppm) and algal extract in the rateof 30cm/L, on sugar beet plants grown under salt stress condition (diluted sea water, TW, 5000 and 10000ppm). Increases in salt concentration in the irrigation water caused a continuous decrease in the dry weight of roots. Dry weight of leaves increased with 5000ppm salts treatment and tended to decrease to be approximately equal of the control. However, the whole plant dry weight did not affect with the first salinity treatment but decreased markedly with the second salinity level. Increased salinity decease the concentration of N, P, K and Fe in leaves of sugar beet. On the opposite side, Ca Na, Mn and Cu concentrations increased by raising salts concentration in the root media of plants. Meanwhile, Mg and Zn % were slightly affected. The concentration of P as well as Cu increased by both antioxidant treatment but the values by the combination of CA and algal extract were more than that of CA alone. Na and Mn increased by CA treatment and Citric acid + algal extract but the increase with CA more than that of the combined between them. The reverse was true of K concentration. Fe, Zn and Mg slightly affected with these treatments. Ca % decreased by CA and tended to increase by Citric acid + algal extract but still more than the control while N% increased by the application of Ca and tended to decrease by Citric acid + algal extract to be less than the control ones.
{"title":"Nutrient Content and Growth Responses of Sugar Beet Plants Grown under Salinity Condition to Citric Acid and Algal Extract","authors":"M. Hussein, A. M. El-Saady, M. Gobarah, A. A. El-Khier","doi":"10.21608/agro.2020.38200.1223","DOIUrl":"https://doi.org/10.21608/agro.2020.38200.1223","url":null,"abstract":"THIS INVESTIGATION aimed to study the response of growth and mineral status of sugar beet plants which sprayed with antioxidant, citric acid (DW, 75 and 150ppm) and algal extract in the rateof 30cm/L, on sugar beet plants grown under salt stress condition (diluted sea water, TW, 5000 and 10000ppm). Increases in salt concentration in the irrigation water caused a continuous decrease in the dry weight of roots. Dry weight of leaves increased with 5000ppm salts treatment and tended to decrease to be approximately equal of the control. However, the whole plant dry weight did not affect with the first salinity treatment but decreased markedly with the second salinity level. Increased salinity decease the concentration of N, P, K and Fe in leaves of sugar beet. On the opposite side, Ca Na, Mn and Cu concentrations increased by raising salts concentration in the root media of plants. Meanwhile, Mg and Zn % were slightly affected. The concentration of P as well as Cu increased by both antioxidant treatment but the values by the combination of CA and algal extract were more than that of CA alone. Na and Mn increased by CA treatment and Citric acid + algal extract but the increase with CA more than that of the combined between them. The reverse was true of K concentration. Fe, Zn and Mg slightly affected with these treatments. Ca % decreased by CA and tended to increase by Citric acid + algal extract but still more than the control while N% increased by the application of Ca and tended to decrease by Citric acid + algal extract to be less than the control ones.","PeriodicalId":42226,"journal":{"name":"Egyptian Journal of Agronomy","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49521674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-07-27DOI: 10.21608/agro.2020.32118.1216
K. Ibrahim, A. Said
FORTY-TWO bread wheat genotypes (Triticum aestivum L.) were evaluated in eight environments in Egypt: two locations and two planting dates during the two 2016-2017 and 2017-2018 growing seasons. The objectives of this study were to estimate grain yield, number of spikes plant-1, 1000-kernel weight and plant height of these 42 bread wheat genotypes under different environments and to determine their stabilities. Combined analysis shows that most mean squares was attributed to environmental effects, indicating that environments were diverse, with large differences among environmental means causing most of variation in grain yield and the other studied traits. Mean squares due to genotypes were highly significant for grain yield and the other traits, indicating that the existence of inherent genetic variability and point to the possibility of selecting a stable wheat genotypes .Mean squares due to Geno x Env were highly significant for all studied traits, indicating that there are substantial differences in genotypic response across environments. Mean squares due to genotypes were significant for all studied traits. Mean squares of E+ (GxE) were highly significant for all studied traits. Linear components of genotype-environment interaction were significant or highly significant for all studied traits. The highest-yielding genotypes overall environment were G21 (360.25g), G15 (349.52g) and G13 (303.96g) and did not differ significantly from check variety Giza-168 (341.76g). Six genotypes namely, G13, G21, Giza-168 Shand-1, misr-1 and Sahel-1 showed better general adaptability across environments.
在2016-2017和2017-2018两个生长季节，在埃及的八个环境中评估了42种面包小麦基因型（小麦）：两个地点和两个种植日期。本研究的目的是估计这42个面包小麦基因型在不同环境下的产量、穗数、株高、1000粒重和株高，并确定其稳定性。综合分析表明，大多数均方归因于环境效应，表明环境是多样的，环境手段之间的巨大差异导致了粮食产量和其他研究性状的大部分变化。基因型的均方对粮食产量和其他性状具有高度显著性，表明存在固有的遗传变异，并表明有可能选择稳定的小麦基因型。Geno x Env的均方对于所有研究的性状都具有高度显著意义，表明不同环境下的基因型反应存在显著差异。基因型的均方对于所有研究的性状都是显著的。E+（GxE）的均方对所有研究的性状都非常显著。基因型-环境相互作用的线性成分对所有研究的性状都是显著或高度显著的。总环境产量最高的基因型是G21（360.25g）、G15（349.52g）和G13（303.96g），与对照品种Giza-168（341.76g）没有显著差异。
{"title":"Grain Yield Stability of New Bread Wheat Genotypes ( Triticum aestivum L.) under Normal and Heat Stress Conditions","authors":"K. Ibrahim, A. Said","doi":"10.21608/agro.2020.32118.1216","DOIUrl":"https://doi.org/10.21608/agro.2020.32118.1216","url":null,"abstract":"FORTY-TWO bread wheat genotypes (Triticum aestivum L.) were evaluated in eight environments in Egypt: two locations and two planting dates during the two 2016-2017 and 2017-2018 growing seasons. The objectives of this study were to estimate grain yield, number of spikes plant-1, 1000-kernel weight and plant height of these 42 bread wheat genotypes under different environments and to determine their stabilities. Combined analysis shows that most mean squares was attributed to environmental effects, indicating that environments were diverse, with large differences among environmental means causing most of variation in grain yield and the other studied traits. Mean squares due to genotypes were highly significant for grain yield and the other traits, indicating that the existence of inherent genetic variability and point to the possibility of selecting a stable wheat genotypes .Mean squares due to Geno x Env were highly significant for all studied traits, indicating that there are substantial differences in genotypic response across environments. Mean squares due to genotypes were significant for all studied traits. Mean squares of E+ (GxE) were highly significant for all studied traits. Linear components of genotype-environment interaction were significant or highly significant for all studied traits. The highest-yielding genotypes overall environment were G21 (360.25g), G15 (349.52g) and G13 (303.96g) and did not differ significantly from check variety Giza-168 (341.76g). Six genotypes namely, G13, G21, Giza-168 Shand-1, misr-1 and Sahel-1 showed better general adaptability across environments.","PeriodicalId":42226,"journal":{"name":"Egyptian Journal of Agronomy","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45059081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-06-23DOI: 10.21608/agro.2020.23667.1204
O. Sadeghipour
CADMIUM (Cd) as a non-essential metal is a soil pollutant that inhibits plant growth and development. Proline (Pro) and Glycine betaine (GB) are two important compatible solutes that accumulate in response to abiotic stresses in different plant species. Here, a pot experiment was carried out to assess the role of exogenously applied Pro and GB in improving Cd toxicity tolerance in cowpea plants. Seeds were soaked in 0, 25 and 50mM Pro or GB, and then were sown in plastic pots that were irrigated with 0 or 100μM cadmium chloride. Results showed that Cd stress markedly decreased shoot length, shoot biomass, leaf area, chlorophyll value, stomatal conductance and relative water content (RWC) but increased root and shoot Cd levels, malondialdehyde (MDA) content and antioxidant enzyme activities such as superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX). Nevertheless, seed treatment with Pro or GB reduced Cd toxicity and improved growth attributes via reducing Cd uptake and translocation, increasing the chlorophyll value, stomatal conductance, and RWC as well as more enhancing the activities of antioxidant enzymes and lowering the MDA level. Although both Pro and GB were effective, pre-treatment of seeds with Pro improved Cd stress tolerance better than GB. Thus, seed treatment with Pro (especially 50mM) could be used as an effective method for protecting cowpea plants against Cd toxicity.
{"title":"Cadmium Toxicity Alleviates by Seed Priming with Proline or Glycine Betaine in Cowpea ( Vigna unguiculata (L.) Walp.)","authors":"O. Sadeghipour","doi":"10.21608/agro.2020.23667.1204","DOIUrl":"https://doi.org/10.21608/agro.2020.23667.1204","url":null,"abstract":"CADMIUM (Cd) as a non-essential metal is a soil pollutant that inhibits plant growth and development. Proline (Pro) and Glycine betaine (GB) are two important compatible solutes that accumulate in response to abiotic stresses in different plant species. Here, a pot experiment was carried out to assess the role of exogenously applied Pro and GB in improving Cd toxicity tolerance in cowpea plants. Seeds were soaked in 0, 25 and 50mM Pro or GB, and then were sown in plastic pots that were irrigated with 0 or 100μM cadmium chloride. Results showed that Cd stress markedly decreased shoot length, shoot biomass, leaf area, chlorophyll value, stomatal conductance and relative water content (RWC) but increased root and shoot Cd levels, malondialdehyde (MDA) content and antioxidant enzyme activities such as superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX). Nevertheless, seed treatment with Pro or GB reduced Cd toxicity and improved growth attributes via reducing Cd uptake and translocation, increasing the chlorophyll value, stomatal conductance, and RWC as well as more enhancing the activities of antioxidant enzymes and lowering the MDA level. Although both Pro and GB were effective, pre-treatment of seeds with Pro improved Cd stress tolerance better than GB. Thus, seed treatment with Pro (especially 50mM) could be used as an effective method for protecting cowpea plants against Cd toxicity.","PeriodicalId":42226,"journal":{"name":"Egyptian Journal of Agronomy","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43992729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-06-18DOI: 10.21608/agro.2020.27108.1209
K. E. Azza, R. G. A. El-Hassan, A. Sharshar
A FIELD experiment was conducted during 2018 and 2019 seasons, at Sakha Agricultural Research Station, Kaferelshiekh, Egypt. To study the efficacy certain herbicides [Nicosulfuron (Shamshon 75%WG), Flumetsulam (Candy 80%WG), Bromoxynil+ Terbuthylazine (Monester 35%SE) and Nicosulfuron+ Bromoxynil (Scrop 75%WG)] at full rate (alone) (30g, 30g, 500cm3 and 120g /fed.), respectively, and at used rate (75 or 50%) of full rate mixtures with mineral oil at 1 and 2%, beside, Maisterpower 4.53% OD (Foramsulfuron-sodium+ Iodosulfuron-methyl-sodium+ Thiencarbazone-methyl) at full rate (alone) 500cm3/fed., (fed= feddan=0.42 hectare), hand hoeing (twice) and weedy check on weed control, productivity and grain quality. Each experiment was laid out a Randomized Complete Blocks Design.Results revealed that both (Monester and Scrop) at used rate 75%+ min.oil 1% or Maister power at full rate gave more controlling effect on total weeds which was reflected to increase yield and its components, than other treatments in both seasons. Also, previous treatments gave increasing grain yield which was directly correlated with increasing vegetative growth traits, yield components and quality characters of grains compared to other treatments in both seasons.Results indicated that the herbicide and adjuvants selected and relative amount used both of them must be tailored to specific condition of each application, therefore, it could replace the two herbicides (Monester or Scrop) at used rate 75% with min.oil 1% by Maister power at the full rate (alone), to avoid the appearance development weeds-resistant to herbicide, beside, without loosing weed control efficiency and grain yield, its components and quality in maize.
{"title":"Improving the Efficiency of Herbicides by Adding Mineral Oil on Maize (Zea mays L.) Crop and Associated Weeds","authors":"K. E. Azza, R. G. A. El-Hassan, A. Sharshar","doi":"10.21608/agro.2020.27108.1209","DOIUrl":"https://doi.org/10.21608/agro.2020.27108.1209","url":null,"abstract":"A FIELD experiment was conducted during 2018 and 2019 seasons, at Sakha Agricultural Research Station, Kaferelshiekh, Egypt. To study the efficacy certain herbicides [Nicosulfuron (Shamshon 75%WG), Flumetsulam (Candy 80%WG), Bromoxynil+ Terbuthylazine (Monester 35%SE) and Nicosulfuron+ Bromoxynil (Scrop 75%WG)] at full rate (alone) (30g, 30g, 500cm3 and 120g /fed.), respectively, and at used rate (75 or 50%) of full rate mixtures with mineral oil at 1 and 2%, beside, Maisterpower 4.53% OD (Foramsulfuron-sodium+ Iodosulfuron-methyl-sodium+ Thiencarbazone-methyl) at full rate (alone) 500cm3/fed., (fed= feddan=0.42 hectare), hand hoeing (twice) and weedy check on weed control, productivity and grain quality. Each experiment was laid out a Randomized Complete Blocks Design.Results revealed that both (Monester and Scrop) at used rate 75%+ min.oil 1% or Maister power at full rate gave more controlling effect on total weeds which was reflected to increase yield and its components, than other treatments in both seasons. Also, previous treatments gave increasing grain yield which was directly correlated with increasing vegetative growth traits, yield components and quality characters of grains compared to other treatments in both seasons.Results indicated that the herbicide and adjuvants selected and relative amount used both of them must be tailored to specific condition of each application, therefore, it could replace the two herbicides (Monester or Scrop) at used rate 75% with min.oil 1% by Maister power at the full rate (alone), to avoid the appearance development weeds-resistant to herbicide, beside, without loosing weed control efficiency and grain yield, its components and quality in maize.","PeriodicalId":42226,"journal":{"name":"Egyptian Journal of Agronomy","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48482367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Essentials Oils and the Phenolic Compositions of the Fruit Pulp of the Argan Fruit at Morocco","authors":"M. Hilali, Z. Charrouf","doi":"10.3923/ja.2020.156.161","DOIUrl":"https://doi.org/10.3923/ja.2020.156.161","url":null,"abstract":"","PeriodicalId":42226,"journal":{"name":"Egyptian Journal of Agronomy","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86984045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Biofortification of Micronutrient in Amaranthus cruentus Using Time of Poultry Manure Incorporation in a Paleudult in Southeast Nigeria","authors":"E. Eteng, M. Anikwe","doi":"10.3923/ja.2020.145.155","DOIUrl":"https://doi.org/10.3923/ja.2020.145.155","url":null,"abstract":"","PeriodicalId":42226,"journal":{"name":"Egyptian Journal of Agronomy","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87381485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-06-14DOI: 10.21608/agro.2020.24003.1205
B. Ahmed, Mokhtar Hassan Haredy, Y. Khlifa
THIS INVESTIGATION was carried out to induce the mutations in bread wheat (Triticum aestivum L) at the Experimental and Research Farm, Faculty of Agriculture, Al-Azhar University. Two wheat geno.types were treated with different concentrations of di methyl sulfoxide and sodium azide (NaN3). The highest grain yield/ plant (81.27g and 80.56g) were obtained from Sids 14 treated with either (di- methyl sulfoxide at 2000ppm) or sodium azide at 6000ppm. The untreated plant Sids 14 gave 39.23g. The variety Sids 14 was more productive than Misr 1 induction of stable promising mutants according to the final results at M2 especially with respect to high grain yield/ plant. In general, Sids 14 was more response to chemicals treatment for 1000 grains weight than Misr 1 and gave higher 1000 grains weight. Sids 14 di methyl sulfoxide 1, Sids 14 DMS2, Sids 14 Sodium Azide1 , Sids 14 Azide2 and Sids 14 Azide3 gave (58.27,55g). The geno.types Misr1 Azide 3 (2, 3 and 6) were short but the genotypes Sids 14 DMS1 (3 and 7) were tall, while the genotypes Sids 14 DMS1 (5 and 6) were very tall in both M1 and M2. In spite of the high 1000 grain weights variety Sids 14 gave the highest grains no./ spike 72, Sids 14 Azide3 and Sids 14 DMS1 giving 88.33 and 87.44 grains, respectively. Mutants Sids 14 Azide3 and Sids 14 DMS1 surpassed the original plants in grain no. spike by 22.68% and 21.44%, respectively. There was a significant and positive correlation between yield and spike no./ plant, spikelet no./ spike and grain/ spike across both varieties and generations. There was a low correlation coefficient between grain yield/ plant and 1000 grain weights (0.016) and the negative correlation between grain yield/ plant and plant height (cm).
{"title":"Effect of Chemical Mutagens on Some Morphological and Yield Components Traits of Wheat ( Triticum aestivum L)","authors":"B. Ahmed, Mokhtar Hassan Haredy, Y. Khlifa","doi":"10.21608/agro.2020.24003.1205","DOIUrl":"https://doi.org/10.21608/agro.2020.24003.1205","url":null,"abstract":"THIS INVESTIGATION was carried out to induce the mutations in bread wheat (Triticum aestivum L) at the Experimental and Research Farm, Faculty of Agriculture, Al-Azhar University. Two wheat geno.types were treated with different concentrations of di methyl sulfoxide and sodium azide (NaN3). The highest grain yield/ plant (81.27g and 80.56g) were obtained from Sids 14 treated with either (di- methyl sulfoxide at 2000ppm) or sodium azide at 6000ppm. The untreated plant Sids 14 gave 39.23g. The variety Sids 14 was more productive than Misr 1 induction of stable promising mutants according to the final results at M2 especially with respect to high grain yield/ plant. In general, Sids 14 was more response to chemicals treatment for 1000 grains weight than Misr 1 and gave higher 1000 grains weight. Sids 14 di methyl sulfoxide 1, Sids 14 DMS2, Sids 14 Sodium Azide1 , Sids 14 Azide2 and Sids 14 Azide3 gave (58.27,55g). The geno.types Misr1 Azide 3 (2, 3 and 6) were short but the genotypes Sids 14 DMS1 (3 and 7) were tall, while the genotypes Sids 14 DMS1 (5 and 6) were very tall in both M1 and M2. In spite of the high 1000 grain weights variety Sids 14 gave the highest grains no./ spike 72, Sids 14 Azide3 and Sids 14 DMS1 giving 88.33 and 87.44 grains, respectively. Mutants Sids 14 Azide3 and Sids 14 DMS1 surpassed the original plants in grain no. spike by 22.68% and 21.44%, respectively. There was a significant and positive correlation between yield and spike no./ plant, spikelet no./ spike and grain/ spike across both varieties and generations. There was a low correlation coefficient between grain yield/ plant and 1000 grain weights (0.016) and the negative correlation between grain yield/ plant and plant height (cm).","PeriodicalId":42226,"journal":{"name":"Egyptian Journal of Agronomy","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41740118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-06-12DOI: 10.21608/agro.2020.29550.1213
J. N. Amoah, D. Berko
SALINITY stress significantly impacts the growth, development and yield of sorghum. Knowledge about the productivity of sorghum under salinity stress condition is lagging, due to the marginally limited information about the physio-biochemical and molecular mechanisms underpinning salinity stress tolerance. The study aimed to investigate the physio-biochemical and molecular mechanisms associated with the differential responses under salinity stress condition in sorghum. To achieve our objectives, the physiological and biochemical salinity stress parameters, including membrane stability index, enzyme antioxidant activities, proline and chlorophyll contents, measured at the seedling stage, were elucidated to identify the salinity stress response status of the genotypes. The quantitative real-time polymerase chain reaction (qPCR) was perform to elucidate the expression pattern of different categories of genes under salinity stress in sorghum genotypes. From our results, enhanced enzyme antioxidant activities, membrane status, increased proline content and lower K+/Na+ concentration under 300mM NaCl stress identified PI 585451 to be the most salinity stress-tolerant genotype. Nevertheless, increased MDA and Na+/K+ level, lower proline, chlorophyll content and antioxidant enzyme activities in PI 585454 marked it to be sensitive to salinity stress. Besides, the transcript expression analysis of different genes, showed an upregulation in PI 585451 than in PI 585454. The results highlighted the differences in metabolic response to salinity stress that may play an important role in the provision of information, required for breeding and development of sorghum genotypes that are tolerant to salinity stress.
{"title":"Impact of Salinity Stress on Membrane Status, Phytohormones, Antioxidant Defense System and Transcript Expression Pattern of Two Contrasting Sorghum Genotypes","authors":"J. N. Amoah, D. Berko","doi":"10.21608/agro.2020.29550.1213","DOIUrl":"https://doi.org/10.21608/agro.2020.29550.1213","url":null,"abstract":"SALINITY stress significantly impacts the growth, development and yield of sorghum. Knowledge about the productivity of sorghum under salinity stress condition is lagging, due to the marginally limited information about the physio-biochemical and molecular mechanisms underpinning salinity stress tolerance. The study aimed to investigate the physio-biochemical and molecular mechanisms associated with the differential responses under salinity stress condition in sorghum. To achieve our objectives, the physiological and biochemical salinity stress parameters, including membrane stability index, enzyme antioxidant activities, proline and chlorophyll contents, measured at the seedling stage, were elucidated to identify the salinity stress response status of the genotypes. The quantitative real-time polymerase chain reaction (qPCR) was perform to elucidate the expression pattern of different categories of genes under salinity stress in sorghum genotypes. From our results, enhanced enzyme antioxidant activities, membrane status, increased proline content and lower K+/Na+ concentration under 300mM NaCl stress identified PI 585451 to be the most salinity stress-tolerant genotype. Nevertheless, increased MDA and Na+/K+ level, lower proline, chlorophyll content and antioxidant enzyme activities in PI 585454 marked it to be sensitive to salinity stress. Besides, the transcript expression analysis of different genes, showed an upregulation in PI 585451 than in PI 585454. The results highlighted the differences in metabolic response to salinity stress that may play an important role in the provision of information, required for breeding and development of sorghum genotypes that are tolerant to salinity stress.","PeriodicalId":42226,"journal":{"name":"Egyptian Journal of Agronomy","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49667788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-06-01DOI: 10.21608/agro.2020.26309.1207
O. Ali, M. Abdel-Aal
TWO FIELD experiments were done at Experimental Farm, Faculty of Agriculture, Menoufia University, Shebin El- Kom, Egypt, during 2018 and 2019 seasons to study the effect of 3 irrigation intervals, i.e., irrigation every 12 (I1), 17 (I2) and 22 days (I3) on growth, productivity and quality of 6 yellow maize genotypes (G), i.e., S.C 178, S.C 176, S.C 168, T.W.C 368, T.W.C 360 and T.W.C 352. The results could be summarized as follows:1- Increasing irrigation intervals from 12 up to 17 and 22 days significantly decreased number and area of leaves and leaves, stem and total dry weight/plant, total chlorophyll, relative water content (RWC), plant height, length and diameter of ear, number and weight of grains/ear, 100 grain weight as well as grain, stover and biological yields/fed, protein and oil % and yields/fed, but significantly increased proline content in leaves in both seasons.2- S.C 168 G surpassed the other genotypes in area and dry weight of leaves/plant, grain yield/fed, crop and harvest indices as well as protein yield/fed. T.W.C 368 G was superior in stem and total dry weight/plant, plant height, ear diameter, no.of grains/ear,100-grain weight as well as stover and biological yields/fed. However, S.C 168 G and T.W.C 368 G recorded the best values of RWC, no.of ears/plant, grain weight/ear, protein% and oil yield/fed as compared with the other genotypes. The highest significant values of proline content and no.of leaves/plant were obtained by T.W.C 352 G and T.W.C 360 G, respectively in both seasons.3- Maize genotypes S.C 168 as well as T.W.C 360 and T.W.C 352 under I2 and T.W.C 368 under either I2 or I3 had the lowest values of relative yield reduction and drought suS.Ceptibility index (< 1), indicating that those genotypes are relatively drought tolerant genotypes compared to other tested genotypes in our experiment condition.
{"title":"Effect of Irrigation Intervals on Growth, Productivity and Quality of Some Yellow Maize Genotypes","authors":"O. Ali, M. Abdel-Aal","doi":"10.21608/agro.2020.26309.1207","DOIUrl":"https://doi.org/10.21608/agro.2020.26309.1207","url":null,"abstract":"TWO FIELD experiments were done at Experimental Farm, Faculty of Agriculture, Menoufia University, Shebin El- Kom, Egypt, during 2018 and 2019 seasons to study the effect of 3 irrigation intervals, i.e., irrigation every 12 (I1), 17 (I2) and 22 days (I3) on growth, productivity and quality of 6 yellow maize genotypes (G), i.e., S.C 178, S.C 176, S.C 168, T.W.C 368, T.W.C 360 and T.W.C 352. The results could be summarized as follows:1- Increasing irrigation intervals from 12 up to 17 and 22 days significantly decreased number and area of leaves and leaves, stem and total dry weight/plant, total chlorophyll, relative water content (RWC), plant height, length and diameter of ear, number and weight of grains/ear, 100 grain weight as well as grain, stover and biological yields/fed, protein and oil % and yields/fed, but significantly increased proline content in leaves in both seasons.2- S.C 168 G surpassed the other genotypes in area and dry weight of leaves/plant, grain yield/fed, crop and harvest indices as well as protein yield/fed. T.W.C 368 G was superior in stem and total dry weight/plant, plant height, ear diameter, no.of grains/ear,100-grain weight as well as stover and biological yields/fed. However, S.C 168 G and T.W.C 368 G recorded the best values of RWC, no.of ears/plant, grain weight/ear, protein% and oil yield/fed as compared with the other genotypes. The highest significant values of proline content and no.of leaves/plant were obtained by T.W.C 352 G and T.W.C 360 G, respectively in both seasons.3- Maize genotypes S.C 168 as well as T.W.C 360 and T.W.C 352 under I2 and T.W.C 368 under either I2 or I3 had the lowest values of relative yield reduction and drought suS.Ceptibility index (< 1), indicating that those genotypes are relatively drought tolerant genotypes compared to other tested genotypes in our experiment condition.","PeriodicalId":42226,"journal":{"name":"Egyptian Journal of Agronomy","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43833157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：