Egyptian Journal of Agronomy最新文献_第6页

LED Light Technology as a Source of Illumination and a Promising Method for Stevia rebaudiana Elite Propagation LED光源技术及其在甜菊优良繁殖中的应用前景

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Egyptian Journal of Agronomy Pub Date : 2021-05-01 DOI: 10.21608/AGRO.2021.67640.1253

Ahmed Saad Attaya

{"title":"LED Light Technology as a Source of Illumination and a Promising Method for Stevia rebaudiana Elite Propagation","authors":"Ahmed Saad Attaya","doi":"10.21608/AGRO.2021.67640.1253","DOIUrl":"https://doi.org/10.21608/AGRO.2021.67640.1253","url":null,"abstract":"Effect of light-sources, quality, and intensities on morphogenesis, shoot multiplication, development and roots, and biomass production in Stevia investigated using shoot tips cultured on Murashige and Skoog (MS) medium supplemented with different concentrations of plant growth regulators (PGRs). 2000 Lux intensity provided by fluorescent light lambs was found the most favorable for shoot induction and production, shoot length, number of leaves/explant and also for fresh and dry weights/foliage. Under this light condition, the optimum contents of photosynthetic pigments, cholorophyll a, cholorophyll b, total cholorophyll, and carotenoids recorded. Blue-LED light treatment created growth condition for the highest shoot elongation, leaves number/shoot, leaf fresh weight, leaf dry weight, and photosynthetic pigment production. Cent percent of shoot induction was obtained under red-LED treatment resulting in the largest number of shoot production. Root formation was promoted by 2000 and 3000 Lux intensities of light. However, the 2000 Lux intensity treatment provided the most favorable growth condition permitting generation of largest number of longest roots with maximum fresh/dry weights. Root induction was 100 percent under fluorescent light, the maximum fresh and dry weights of roots were achieved on blue-Led light and red-LED treatment induced the longest roots.","PeriodicalId":42226,"journal":{"name":"Egyptian Journal of Agronomy","volume":"43 1","pages":"123-132"},"PeriodicalIF":0.5,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41831910","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}

引用次数: 3

Direct Shoot Bud Proliferation Protocol from Stevia rebaudiana Leaf Culture for Healthy Biomass Production 甜菊叶直接芽增殖技术在健康生物质生产中的应用

IF 0.5

Egyptian Journal of Agronomy Pub Date : 2021-04-21 DOI: 10.21608/AGRO.2021.66749.1252

Ahmed Saad Attaya

引用次数: 0

Response of Lentil to Crude Humates and Rhizobacteria Inoculation under Calcareous Soils Conditions 钙质土壤条件下小扁豆对粗腐殖质和根杆菌接种的响应

IF 0.5

Egyptian Journal of Agronomy Pub Date : 2021-04-17 DOI: 10.21608/AGRO.2021.62856.1247

Y. El-Tahlawy, S. Hassanen

引用次数: 0

Effect of Salinity and Magnetically-Treated Saline Water on the Physiological and Agronomic Traits of Some Bread Wheat Genotypes 盐度和磁处理盐水对部分面包小麦基因型生理农艺性状的影响

IF 0.5

Egyptian Journal of Agronomy Pub Date : 2021-04-11 DOI: 10.21608/AGRO.2021.64159.1250

A. Said, A. Mustafa, Alhosein Hamada

引用次数: 1

Assessment of Wheat Genotypes for Quality Attributes Grown under Irrigated and Rainfed Conditions 水旱条件下小麦品质性状的基因型评价

IF 0.5

Egyptian Journal of Agronomy Pub Date : 2021-04-08 DOI: 10.21608/AGRO.2021.51940.1241

M. Zubair, L. H. Akhtar, R. Minhas, Muhammad Umaid Bukhari, Sabir Hussain, I. Ali, M. Q. Mahmood, M. Rehman, Muhmmad Akram, R. Ullah

引用次数: 0

Prediction of New Genetic Recombination in Two Egyptian Cotton Crosses 两个埃及棉杂交新基因重组的预测

IF 0.5

Egyptian Journal of Agronomy Pub Date : 2021-03-31 DOI: 10.21608/AGRO.2021.65016.1251

A. Abdelmoghny

{"title":"Prediction of New Genetic Recombination in Two Egyptian Cotton Crosses","authors":"A. Abdelmoghny","doi":"10.21608/AGRO.2021.65016.1251","DOIUrl":"https://doi.org/10.21608/AGRO.2021.65016.1251","url":null,"abstract":"Received 24/2/2021; Accepted 31/3/2021 DOI: 10.21608/agro.2021.65016.1251 ©2021 National Information and Documentation Center (NIDOC) THE SUCCESS of cotton breeding programme depends upon the available information about genetic potential of various genotypes, genetic variability, and heritability. While, selection reduce variability in the next generation by increasing phenotypic mean performance. The maximum and minimum range in F2 was observed to be wider than in F3 generation. While, the phenotypic mean performance of F3 was higher than F2 for all traits. Analysis of variance revealed highly significant (P≤ 0.01) differences between F3families which revealed greater genetic variation between these families. The excepted genetic variance of F3 families was larger than environmental variance and average variance within F3 families. Also, the intra-class correlation was more than 0.95%. These results indicated that the variability between families was larger than within families and selection between families could be more efficient than within families. The additive genetic variance plays a major role in controlling all the studied traits among two cotton crosses and had partial degree of dominance. Selection differential and response to selection were found to be positive for all traits, except micronaire value among two cotton crosses. Cross II has higher prediction of new recombinant falling outside parental range and exceeding F1 hybrid than cross I for most studied traits. The study reveals that judicious selection leads to improve mean performance in next generation. The most promising families should evaluate in multilocations yield trials.","PeriodicalId":42226,"journal":{"name":"Egyptian Journal of Agronomy","volume":" ","pages":"0-0"},"PeriodicalIF":0.5,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43782175","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}

引用次数: 0

Inheritance of Drought Tolerance Using Six Populations Model in Two Bread Wheat Crosses 两个面包小麦杂交组合抗旱性的六种群模型遗传

IF 0.5

Egyptian Journal of Agronomy Pub Date : 2021-02-09 DOI: 10.21608/AGRO.2021.51233.1239

A. Said, Y. Hefny

{"title":"Inheritance of Drought Tolerance Using Six Populations Model in Two Bread Wheat Crosses","authors":"A. Said, Y. Hefny","doi":"10.21608/AGRO.2021.51233.1239","DOIUrl":"https://doi.org/10.21608/AGRO.2021.51233.1239","url":null,"abstract":"Drought stress is the primary restricting factor of crop productivity in Egypt. The development of drought-tolerant lines is urgent. However, drought tolerance is a complex trait. So, this work aimed to reveal the genetic background and gene effects controlling of yield parameters and to discover the epistasis in two bread wheat crosses; Sakha 93 × pureline 5 and Gemmeiza 10 × pureline 42 under irrigated and drought conditions, utilizing seven generations viz. P1, P2, F1, BC1, BC2, F2 and F3. \u0000Genetic analysis revealed that additive and dominance effects are involved in the genetics for most traits in both crosses and conditions. Both additive x additive and additive x dominance effects were significant in most cases, supporting the presence of duplicate type of epistasis. Therefore, early generation selection would have failed. \u0000F1 hybrids (Drought susceptibility indexes were 0.278 in cross I and 0.295 in cross II), were less affected by drought stress conditions, displaying the presence of heterobeltiosis for drought tolerance. Broad-sense and narrow-sense heritabilities and genetic advance ranged from moderate to high for most of the studied traits and these two crosses could be selected to produce high yielding lines under drought conditions. \u0000R","PeriodicalId":42226,"journal":{"name":"Egyptian Journal of Agronomy","volume":" ","pages":"0-0"},"PeriodicalIF":0.5,"publicationDate":"2021-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42517948","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}

引用次数: 0

Effect of Nano-micronutrients Fertilization on Yield and Quality of some Sugar Beet Varieties under Early and Late Sowing Dates 纳米微量营养素对甜菜早、晚种产量和品质的影响

IF 0.5

Egyptian Journal of Agronomy Pub Date : 2021-02-09 DOI: 10.21608/AGRO.2021.45324.1235

Y. Hefny, A. Said

{"title":"Effect of Nano-micronutrients Fertilization on Yield and Quality of some Sugar Beet Varieties under Early and Late Sowing Dates","authors":"Y. Hefny, A. Said","doi":"10.21608/AGRO.2021.45324.1235","DOIUrl":"https://doi.org/10.21608/AGRO.2021.45324.1235","url":null,"abstract":"Sugar beet (Beta vulgaris L.) is the second source of sugar around the world after sugar cane. Two field experiments were carried out in the Research Farm , Faculty of Agriculture, Sohag University, in two successive seasons of 2016/2017 and 2017/2018 to study the effect of Nano-micronutrients fertilizer on yield and quality of sugar beet varieties under normal and late sowing conditions. The results showed the early sowing at 21st October increased the root, quality, sugar and root yields comparing with the late sowing at 21st November in both seasons. the foliar application at 60 days after sowing exhibited the higher values of all studied traits comparing with both of foliar application at 105 days and non-fertilizer in both seasons. The four sugar beet varieties (Nabila, Karta, Kosmas and Tesla) differed significantly on all studied traits in the two seasons. Tesla variety was superior than the others of all studied traits. The highest sucrose % (18.32 and 18.42 %) and sugar yield (5.20 and 5.83 ton/fed) were obtained from Tesla variety with Nano-fertilized at 60 days from sowing of early sowing in 21st October in 2016/2017 and 2017/2018 seasons respectively. According to principal component analysis, the most appropriate sugar beet varieties for selecting of sugar yield was Tesla variety under the most treatments of foliar Nano- micronutrients in the two environments (stable genotype and recommended for the test environments), especially under D1 (sowing at 21 October ) and F2 (spraying time of 60 day after planting).","PeriodicalId":42226,"journal":{"name":"Egyptian Journal of Agronomy","volume":" ","pages":"0-0"},"PeriodicalIF":0.5,"publicationDate":"2021-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45176819","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}

引用次数: 2

Effect of Ascorbic Acid and Zinc on the Productivity of Sunflower (Helianthus annuus L.) under Saline Stress Conditions 抗坏血酸和锌对盐胁迫条件下向日葵生产力的影响

IF 0.5

Egyptian Journal of Agronomy Pub Date : 2021-02-02 DOI: 10.21608/AGRO.2021.51398.1240

E. Salem

{"title":"Effect of Ascorbic Acid and Zinc on the Productivity of Sunflower (Helianthus annuus L.) under Saline Stress Conditions","authors":"E. Salem","doi":"10.21608/AGRO.2021.51398.1240","DOIUrl":"https://doi.org/10.21608/AGRO.2021.51398.1240","url":null,"abstract":"Saltiness is the most restricting factor for agriculture in arid and semi-arid regions, in addition to zinc is deposited in forms not accessible to plants in calcareous soils. Generally, less availability of nutrients associated salinity is a stumbling block in front of the agricultural expansion. Therefore, during the 2018 and 2019 seasons, two field experiments were conducted at the Desert Research Center, Agriculture Experimental Station at Ras Sudr, South Sinai Governorate, Egypt. The cooperative impact of seed priming by soaking seeds in ascorbic acid at 0, 100, 200, and 300 mg ASC/L and the soil application of zinc at the rates of 0, 3, 6, 12, and 24 kg zinc sulfate/ha on sunflower yields and its attributes were studied. The results reported that plant height, head diameter, number of seeds/head, seed weight/head, seed index, in addition to biological, seed and oil yields and seed oil content responded considerably to ascorbic acid (ASC) in both seasons. In this connection, sunflower seeds soaked in 200 mg ASC/L was the Potency practice compared to other treatments in both years. While zinc application (ZnSO4) significantly affected all the aforementioned traits in both seasons. The findings of this study suggest that soaking sunflower seeds in 200 mg/L ASC alongside with ZnSO4 fertilization at a rate of 12 kg/ha could be used to alleviate the harmful effects of salinity stress and consequently could improve the sunflower yield.","PeriodicalId":42226,"journal":{"name":"Egyptian Journal of Agronomy","volume":" ","pages":"0-0"},"PeriodicalIF":0.5,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48544221","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}

引用次数: 2

Evaluation of Genetic Parameters for Yield and Related Traits in new Recombinants interspecific Mungbean × Mashbean Genotypes 绿豆× Mashbean新种间基因型产量及相关性状遗传参数评价

IF 0.5

Egyptian Journal of Agronomy Pub Date : 2021-01-27 DOI: 10.21608/AGRO.2021.33773.1220

G. Abbas, M. Ahsan, M. Asghar, M. Rizwan, F. Ahmad, M. Akram

{"title":"Evaluation of Genetic Parameters for Yield and Related Traits in new Recombinants interspecific Mungbean × Mashbean Genotypes","authors":"G. Abbas, M. Ahsan, M. Asghar, M. Rizwan, F. Ahmad, M. Akram","doi":"10.21608/AGRO.2021.33773.1220","DOIUrl":"https://doi.org/10.21608/AGRO.2021.33773.1220","url":null,"abstract":"Seventy two Mungbean × Mashbean recombinant genotypes were evaluated in the field for seed yield and its components traits. Highly significant differences were observed among the genotypes. The magnitudes of genotypic and phenotypic coefficients of variability ranged from 2.73% to 28.97% and 3.46% to 31.95%, respectively. Pods per plant exhibited maximum amount of genetic variability followed by clusters per plant and seed yield per plant. 100-seed weight was observed to be the most heritable trait with greatest magnitude (h2 = 99%). Pods per plant had maximum positive and significant genotypic (rg = 0.90) and phenotypic (rp = 0.86) correlations with clusters per plant. Both traits were identified as the most important characters as they had strong genetic and phenotypic relationships with seed yield. Selection for number of pods per plant among different agronomic traits showed greatest improvement in seed yield that was 54% of the improvement possible through direct selection for seed yield. Likewise, clusters per plant and plant height also showed higher improvement in seed yield through indirect selection which was 29% and 20% of the improvement possible by direct selection for yield. Days to flowering also showed promise for 8% of the improvement in seed yield possible through direct selection for seed yield. Thirty six promising recombinants were selected on the basis of desirability index. On the basis of overall performance seven recombinant genotypes, viz; MMH 1115, MMH 4224, MMH 4255, MMH 7124, MMH 2112, MMH 4295 and MMH 2225 were selected as elite lines.","PeriodicalId":42226,"journal":{"name":"Egyptian Journal of Agronomy","volume":" ","pages":"0-0"},"PeriodicalIF":0.5,"publicationDate":"2021-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41717416","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}

引用次数: 1