Pub Date : 2021-08-26DOI: 10.21608/eajbsh.2021.192803
W. Mohamed, K. Elzopy, Mahmood Al-Kaki
{"title":"Effect of Potassium Sources on Growth and Potassium Uptake of Spinach","authors":"W. Mohamed, K. Elzopy, Mahmood Al-Kaki","doi":"10.21608/eajbsh.2021.192803","DOIUrl":"https://doi.org/10.21608/eajbsh.2021.192803","url":null,"abstract":"","PeriodicalId":34635,"journal":{"name":"Egyptian Academic Journal of Biological Sciences H Botany","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87305160","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 : 2021-08-23DOI: 10.21608/eajbsh.2021.192802
A. Nassar, A. Ibrahim, M. Negm, A. Dina
The aim of this study is a comparison between old cultivated commercial varieties (Giza 86, Giza 90 and Giza 88) and new varieties (Giza 94, Giza 95 and Giza 96) by evaluation of the fiber characteristics and the qualities of spinning. The fiber properties of the studied varieties on HVI and Nep tester instruments were made at Cotton Arbitration and Testing General Organization (CATGO) and measure the efficiency qualities of spinning yarn varieties for 3 yarn counts at Delta company (20 - 30- 40 ’S for cotton varieties Giza 95 and Giza 90) and (50 - 60- 70 ’S for Giza 94 and Giza 86) and (60 - 90- 120 ’S for Giza 96 and Giza 88)). The mean squares of cotton varieties for all studied fiber properties were highly significant differences as well as the two growing seasons mannered the same trend for all studied fiber properties as cotton varieties except fiber length, fiber elongation, short fiber index and neps count revealed insignificant differences.The interaction between six Egyptian cotton varieties and two growing seasons was recorded as highly significant for all studied fiber properties except for two traits fiber elongation and trash area. The yarn properties revealed high significance for the yarn traits of Giza 94 and Giza 86 for three yarn counts (50 - 60- 70 ’S). The yarn properties (yarn strength(cN/tex) , thin places /400 m, thick places/400 m and yarn evenness (CV%)) under three yarn counts 20 ,30 and 40’s of some Egyptian cotton varieties(Giza 95and Giza 90). Highly significant recorded for both of the Egyptian cotton varieties except yarn strength for both cotton varieties. The yarn properties were had recorded as highly significant for the yarn traits of Giza 96 and Giza 88 with regard to three yarn counts (60 - 90- 120 ’S) except thick places/400m for cotton varieties. The interaction between Egyptian cotton varieties (Giza 94 and Giza 86) and yarn count is clear that highly significant for yarn properties. The interaction between Egyptian cotton varieties (Giza 95 and Giza 90) and yarn count had highly significant on yarn strength and thick places only. The interaction between cotton varieties Giza 96 and Giza 88 and yarn count is highly significant for all yarn properties.
{"title":"Quality Assessment of Some Newly Produced Egyptian Cotton Varieties","authors":"A. Nassar, A. Ibrahim, M. Negm, A. Dina","doi":"10.21608/eajbsh.2021.192802","DOIUrl":"https://doi.org/10.21608/eajbsh.2021.192802","url":null,"abstract":"The aim of this study is a comparison between old cultivated commercial varieties (Giza 86, Giza 90 and Giza 88) and new varieties (Giza 94, Giza 95 and Giza 96) by evaluation of the fiber characteristics and the qualities of spinning. The fiber properties of the studied varieties on HVI and Nep tester instruments were made at Cotton Arbitration and Testing General Organization (CATGO) and measure the efficiency qualities of spinning yarn varieties for 3 yarn counts at Delta company (20 - 30- 40 ’S for cotton varieties Giza 95 and Giza 90) and (50 - 60- 70 ’S for Giza 94 and Giza 86) and (60 - 90- 120 ’S for Giza 96 and Giza 88)). The mean squares of cotton varieties for all studied fiber properties were highly significant differences as well as the two growing seasons mannered the same trend for all studied fiber properties as cotton varieties except fiber length, fiber elongation, short fiber index and neps count revealed insignificant differences.The interaction between six Egyptian cotton varieties and two growing seasons was recorded as highly significant for all studied fiber properties except for two traits fiber elongation and trash area. The yarn properties revealed high significance for the yarn traits of Giza 94 and Giza 86 for three yarn counts (50 - 60- 70 ’S). The yarn properties (yarn strength(cN/tex) , thin places /400 m, thick places/400 m and yarn evenness (CV%)) under three yarn counts 20 ,30 and 40’s of some Egyptian cotton varieties(Giza 95and Giza 90). Highly significant recorded for both of the Egyptian cotton varieties except yarn strength for both cotton varieties. The yarn properties were had recorded as highly significant for the yarn traits of Giza 96 and Giza 88 with regard to three yarn counts (60 - 90- 120 ’S) except thick places/400m for cotton varieties. The interaction between Egyptian cotton varieties (Giza 94 and Giza 86) and yarn count is clear that highly significant for yarn properties. The interaction between Egyptian cotton varieties (Giza 95 and Giza 90) and yarn count had highly significant on yarn strength and thick places only. The interaction between cotton varieties Giza 96 and Giza 88 and yarn count is highly significant for all yarn properties.","PeriodicalId":34635,"journal":{"name":"Egyptian Academic Journal of Biological Sciences H Botany","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81101423","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 : 2021-08-08DOI: 10.21608/eajbsh.2021.188282
E Ebido, S. Abdallah, M. Nassar, H. Rady, O․ Abo Elenan
The present investigation was carried out during two successive summer seasons of years 2019 and 2020 at the Faculty of Agriculture (Saba Basha), Alexandria University and the laboratory of the vegetable seed of Sabahya Horticulture Research Station, Alexandria Governorate, Egypt to evaluate six local cultivars and landraces of cowpea for some morphological characters, yield and its components as well as estimate some genetic parameters. Results reflected obvious differences among the six genotypes of cowpea for most of the studied characters. The coefficient of variation (C.V.) was less than 10 % for all the studied traits in all genotypes of cowpea. These results indicate that the six genotypes of cowpea are genetically identical concerning these traits. Analysis of variance showed that variances of genotypes were highly significant in all studied traits. These findings refer to that there were highly variations between genotypes under study. Generally, the data prove that all of the studied traits could be improved through the selection method, but with different degrees of the improving depending upon the amount of variation present in each population. Meanwhile, mean squares of years were significant only in height of the first flower, this can be interpreted as this property being affected by the different environmental conditions in both years of the study. Cluster analysis, based on RAPD plus ISSR analysis, divided the 6 studied genotypes into 3 major groups. The first contained Geza and Kareem7 Cvs. with similarity of (30%), the second consisted of Fowa Lr. and Kaha Cv., and the third one contained the ones of Behira Lr. and Kafr Elshikh Cv.
{"title":"Estimation of the Coefficient of Variation and Some Genetic Parameters of Some Landraces of Cowpea","authors":"E Ebido, S. Abdallah, M. Nassar, H. Rady, O․ Abo Elenan","doi":"10.21608/eajbsh.2021.188282","DOIUrl":"https://doi.org/10.21608/eajbsh.2021.188282","url":null,"abstract":"The present investigation was carried out during two successive summer seasons of years 2019 and 2020 at the Faculty of Agriculture (Saba Basha), Alexandria University and the laboratory of the vegetable seed of Sabahya Horticulture Research Station, Alexandria Governorate, Egypt to evaluate six local cultivars and landraces of cowpea for some morphological characters, yield and its components as well as estimate some genetic parameters. Results reflected obvious differences among the six genotypes of cowpea for most of the studied characters. The coefficient of variation (C.V.) was less than 10 % for all the studied traits in all genotypes of cowpea. These results indicate that the six genotypes of cowpea are genetically identical concerning these traits. Analysis of variance showed that variances of genotypes were highly significant in all studied traits. These findings refer to that there were highly variations between genotypes under study. Generally, the data prove that all of the studied traits could be improved through the selection method, but with different degrees of the improving depending upon the amount of variation present in each population. Meanwhile, mean squares of years were significant only in height of the first flower, this can be interpreted as this property being affected by the different environmental conditions in both years of the study. Cluster analysis, based on RAPD plus ISSR analysis, divided the 6 studied genotypes into 3 major groups. The first contained Geza and Kareem7 Cvs. with similarity of (30%), the second consisted of Fowa Lr. and Kaha Cv., and the third one contained the ones of Behira Lr. and Kafr Elshikh Cv.","PeriodicalId":34635,"journal":{"name":"Egyptian Academic Journal of Biological Sciences H Botany","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90759165","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 : 2021-08-03DOI: 10.21608/eajbsh.2021.187545
G. A., Essam Esmail Esmail Kandil, E. Galal, A. El- Shehata
To investigate the effect of foilar application of salicylic rates and yeast extracton yield and quality of wheat, in this respect the two experiments were carried out at the Experimental Farm, Faculty of Agriculture, Saba Basha, Alexandria University, Alexandria Governorate, Egypt, during the two winter seasons of 2019/2020 and 2020/2021. This factorial experiment was laid out in randomized complete block design (RCBD) with three replications in both seasons. The first factor was salicylic acid concentrations (spray water, 150, 300 and 450 ml/l), while the second factor was yeast (water = control, 2, 4 and 6 g/l water) was in both seasons. The obtained results showed that foliar application of salicylic acid (SA) and yeast extract of wheat significantly affected yield and its component, whereas increasing of SA and yeast extract increased yield and yield component characters of wheat in both seasons. The interaction between SA and yeast was significant on all the studied characters, where planting Giza 171 with foliar application of 450 ppm SA/L and 4 and 6 g yeast/L recorded the highest ones in the two seasons under the study conditions.
{"title":"Role of Salicylic Acid and Yeast Extract in Wheat Production Under Saline Soils Conditions","authors":"G. A., Essam Esmail Esmail Kandil, E. Galal, A. El- Shehata","doi":"10.21608/eajbsh.2021.187545","DOIUrl":"https://doi.org/10.21608/eajbsh.2021.187545","url":null,"abstract":"To investigate the effect of foilar application of salicylic rates and yeast extracton yield and quality of wheat, in this respect the two experiments were carried out at the Experimental Farm, Faculty of Agriculture, Saba Basha, Alexandria University, Alexandria Governorate, Egypt, during the two winter seasons of 2019/2020 and 2020/2021. This factorial experiment was laid out in randomized complete block design (RCBD) with three replications in both seasons. The first factor was salicylic acid concentrations (spray water, 150, 300 and 450 ml/l), while the second factor was yeast (water = control, 2, 4 and 6 g/l water) was in both seasons. The obtained results showed that foliar application of salicylic acid (SA) and yeast extract of wheat significantly affected yield and its component, whereas increasing of SA and yeast extract increased yield and yield component characters of wheat in both seasons. The interaction between SA and yeast was significant on all the studied characters, where planting Giza 171 with foliar application of 450 ppm SA/L and 4 and 6 g yeast/L recorded the highest ones in the two seasons under the study conditions.","PeriodicalId":34635,"journal":{"name":"Egyptian Academic Journal of Biological Sciences H Botany","volume":"78 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75684184","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 : 2021-06-11DOI: 10.21608/eajbsh.2021.199654
Christianah Dare, O. Oyedapo, A. Akinlalu, I. Komolafe, A. Fajobi, M. Ogunsusi
{"title":"Genotoxic Activities of Polysaccharides from Cotyledon and Coat of Fermented and Unfermented Annona squamosa L. Seed","authors":"Christianah Dare, O. Oyedapo, A. Akinlalu, I. Komolafe, A. Fajobi, M. Ogunsusi","doi":"10.21608/eajbsh.2021.199654","DOIUrl":"https://doi.org/10.21608/eajbsh.2021.199654","url":null,"abstract":"","PeriodicalId":34635,"journal":{"name":"Egyptian Academic Journal of Biological Sciences H Botany","volume":"103 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79457711","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 : 2021-01-26DOI: 10.21608/EAJBSH.2021.154998
Ahmed A. Barakat, Fatma El-Zahraa El Tony, M. Gaber
this study to develop an efficient for the rapid vitro and
本研究旨在开发一种高效、快速的体外和体外检测方法
{"title":"In vitro Propagation, Caulogenesis, and Tuberization of Ceropegia woodii Plants","authors":"Ahmed A. Barakat, Fatma El-Zahraa El Tony, M. Gaber","doi":"10.21608/EAJBSH.2021.154998","DOIUrl":"https://doi.org/10.21608/EAJBSH.2021.154998","url":null,"abstract":"this study to develop an efficient for the rapid vitro and","PeriodicalId":34635,"journal":{"name":"Egyptian Academic Journal of Biological Sciences H Botany","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75432702","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 : 2021-01-17DOI: 10.21608/EAJBSH.2021.148885
Karar Hamzah, H. Younes, S. Behiry, A. Abdelkhalek
Bean yellow mosaic virus represents a stress effect on fava bean plants. This study was conducted to assess the lipid peroxidation and total phenolic content (TPC) of fava bean plants under bean yellow mosaic virus infection and its management by the biostimulants; Rhizobium and Bacillus species spraying application. The obtained data revealed that virus-infected plants maximized stress factors, the content of malondialdehyde (MDA), while it decreased in other applications. TPC significantly increased in Bacillus, and Rhizobium isolates spraying treatments with 20.99 and 22.44 mg/100g extract, respectively, compared with control. The current work provides bio-resistance by Bacillus or Rhizobium isolates effectively minimizes the adverse effects of challenges such as stressing viral infection and representing an environmentally friendly commercial value for plant growers.
{"title":"Act of Malondialdehyde and Total Phenolic Content Under Bean Yellow Mosaic Virus Infection and Biostimulants Application","authors":"Karar Hamzah, H. Younes, S. Behiry, A. Abdelkhalek","doi":"10.21608/EAJBSH.2021.148885","DOIUrl":"https://doi.org/10.21608/EAJBSH.2021.148885","url":null,"abstract":"Bean yellow mosaic virus represents a stress effect on fava bean plants. This study was conducted to assess the lipid peroxidation and total phenolic content (TPC) of fava bean plants under bean yellow mosaic virus infection and its management by the biostimulants; Rhizobium and Bacillus species spraying application. The obtained data revealed that virus-infected plants maximized stress factors, the content of malondialdehyde (MDA), while it decreased in other applications. TPC significantly increased in Bacillus, and Rhizobium isolates spraying treatments with 20.99 and 22.44 mg/100g extract, respectively, compared with control. The current work provides bio-resistance by Bacillus or Rhizobium isolates effectively minimizes the adverse effects of challenges such as stressing viral infection and representing an environmentally friendly commercial value for plant growers.","PeriodicalId":34635,"journal":{"name":"Egyptian Academic Journal of Biological Sciences H Botany","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89691829","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 : 2021-01-16DOI: 10.21608/EAJBSH.2021.148884
Mohamed, E., H. El-Gepaly
This work was conducted during two successive seasons (2018 and 2019) at the experimental research station, Shandweel, Sohag, Egypt to study the effectiveness addition methods of the fungus, Beauvariabassiana on growth, yield quality and some of the chemical constituents, moreover, associated insects and their damages to vegetative and storage roots growth were calculated of sweet potato plants growing under Sohag governorate conditions. The obtained results indicated that the different addition treatments of B. bassiana wereshowed an increase in growth traits when the plants were sprying twice by B . bassiana given the highest values of plant length, fresh weight compared with other treatments studied in both seasons. The gained results of yield and its contents included that addition of B.bassiana in soil twice gave the best values of total yield, marketable yield, theaverage weight of storage roots as well as highest dry matter percentage of storage roots compared with other treatments, at the same time the control treatment showed the lowest of values of all studied traits in both seasons. Soil application of B . bassiana twice was affected significantly on chemical constituents of sweet potato storage roots (nitrogen%, phosphorus%, potassium%, Protein% and starch%) except potassium% and starch in the first season. Twice foliar application of fungus was the most effective application on leave defoliators and recorded the lowest number of whiteflies.
{"title":"Effect of Using The Entomopathogenic/Endophytic Fungus, Beauvaria bassiana on Quality of Sweet Potato Crop and Associated Insects Under Sohag Governorate Conditions","authors":"Mohamed, E., H. El-Gepaly","doi":"10.21608/EAJBSH.2021.148884","DOIUrl":"https://doi.org/10.21608/EAJBSH.2021.148884","url":null,"abstract":"This work was conducted during two successive seasons (2018 and 2019) at the experimental research station, Shandweel, Sohag, Egypt to study the effectiveness addition methods of the fungus, Beauvariabassiana on growth, yield quality and some of the chemical constituents, moreover, associated insects and their damages to vegetative and storage roots growth were calculated of sweet potato plants growing under Sohag governorate conditions. The obtained results indicated that the different addition treatments of B. bassiana wereshowed an increase in growth traits when the plants were sprying twice by B . bassiana given the highest values of plant length, fresh weight compared with other treatments studied in both seasons. The gained results of yield and its contents included that addition of B.bassiana in soil twice gave the best values of total yield, marketable yield, theaverage weight of storage roots as well as highest dry matter percentage of storage roots compared with other treatments, at the same time the control treatment showed the lowest of values of all studied traits in both seasons. Soil application of B . bassiana twice was affected significantly on chemical constituents of sweet potato storage roots (nitrogen%, phosphorus%, potassium%, Protein% and starch%) except potassium% and starch in the first season. Twice foliar application of fungus was the most effective application on leave defoliators and recorded the lowest number of whiteflies.","PeriodicalId":34635,"journal":{"name":"Egyptian Academic Journal of Biological Sciences H Botany","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87071101","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 : 2021-01-01DOI: 10.21608/eajbsh.2021.191436
A. Gabal, M. Aly, S. Abdallah, H. Rady, H. Roshdy
{"title":"Estimation of the Variation Coefficient and Some Local Genetical Resources of Some Common Bean","authors":"A. Gabal, M. Aly, S. Abdallah, H. Rady, H. Roshdy","doi":"10.21608/eajbsh.2021.191436","DOIUrl":"https://doi.org/10.21608/eajbsh.2021.191436","url":null,"abstract":"","PeriodicalId":34635,"journal":{"name":"Egyptian Academic Journal of Biological Sciences H Botany","volume":"81 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77406371","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/eajbsh.2020.119321
A. Aly, Rehab Awad, H. Sayed, R. Abd El-Razk
The experiment was conducted on Washington navel orange trees grown in sandy soil under a drip irrigation system at El Nubaria, Behera governorate during both experimental seasons of 2018 and 2019 to study the effect of applying a shading net, spraying potassium silicate, and their combination during fruit development to reduce high-temperature stress on fruit drop (%), number of fruits sunscald, number of fruits/ tree, and fruit quality, the experiment followed Randomized Complete Block Design(RCBD). The results showed that, T4 (Shading net (75%) and T7 (Shading net (75 %) + potassium silicate) caused the highest significant increase in shoot length. in the first season, the two shading treatments (T3 and T4) and the three combined treatments (T5, T6, and T7) caused a significant increase in leaf area compared to the control and the rest treatments. In the first season, Treatments (T4, T6, and T7) caused a significant increase in shoot diameter compared to the rest treatments and the control. In the two seasons, control, and the treatments of spray silicate only (one, two, or three times) caused the highest significant percentage of fruit June drop compared to the rest treatments. All treatments caused a significant increase in average fruit weight (g), juice weight (%), and fruit diameter (cm) compared to control. T2 (35% shading net) caused a significant increase in TSS and TA (%) compared to the control and the two shading treatments (65 and 75%). As for vitamin C shading treatments (T2, T3, and T4) did not show any significant differences among them or compared to the control. The highest value of total chlorophyll was obtained from T4 and T7.
{"title":"Vegetative Growth and Quality of Washington Navel Orange as Affected by Shading Nets and Potassium Silicate Spraying","authors":"A. Aly, Rehab Awad, H. Sayed, R. Abd El-Razk","doi":"10.21608/eajbsh.2020.119321","DOIUrl":"https://doi.org/10.21608/eajbsh.2020.119321","url":null,"abstract":"The experiment was conducted on Washington navel orange trees grown in sandy soil under a drip irrigation system at El Nubaria, Behera governorate during both experimental seasons of 2018 and 2019 to study the effect of applying a shading net, spraying potassium silicate, and their combination during fruit development to reduce high-temperature stress on fruit drop (%), number of fruits sunscald, number of fruits/ tree, and fruit quality, the experiment followed Randomized Complete Block Design(RCBD). The results showed that, T4 (Shading net (75%) and T7 (Shading net (75 %) + potassium silicate) caused the highest significant increase in shoot length. in the first season, the two shading treatments (T3 and T4) and the three combined treatments (T5, T6, and T7) caused a significant increase in leaf area compared to the control and the rest treatments. In the first season, Treatments (T4, T6, and T7) caused a significant increase in shoot diameter compared to the rest treatments and the control. In the two seasons, control, and the treatments of spray silicate only (one, two, or three times) caused the highest significant percentage of fruit June drop compared to the rest treatments. All treatments caused a significant increase in average fruit weight (g), juice weight (%), and fruit diameter (cm) compared to control. T2 (35% shading net) caused a significant increase in TSS and TA (%) compared to the control and the two shading treatments (65 and 75%). As for vitamin C shading treatments (T2, T3, and T4) did not show any significant differences among them or compared to the control. The highest value of total chlorophyll was obtained from T4 and T7.","PeriodicalId":34635,"journal":{"name":"Egyptian Academic Journal of Biological Sciences H Botany","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81148474","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}
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