Evaluation of genetic gains of some quantitative characters in Egyptian cotton cross (Giza 86 × Menoufi) under water deficit stress
Abstract This work was carried out to select cotton genotypes adapted to semi-arid climate conditions cultivated under irrigation for high yields and the standards of the fiber quality properties required by the textile industry. Also to determine the predicted and realized gains from different sele...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-09-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-18966-3 |
| _version_ | 1811273594095796224 |
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| author | Mohamed S. Abd EL-Aty Mohamed A. Al-Ameer Mohamed M. Kamara Mohamed M. Elmoghazy Omar M. Ibrahim Ammar AL-Farga Amira M. El-Tahan |
| author_facet | Mohamed S. Abd EL-Aty Mohamed A. Al-Ameer Mohamed M. Kamara Mohamed M. Elmoghazy Omar M. Ibrahim Ammar AL-Farga Amira M. El-Tahan |
| author_sort | Mohamed S. Abd EL-Aty |
| collection | DOAJ |
| description | Abstract This work was carried out to select cotton genotypes adapted to semi-arid climate conditions cultivated under irrigation for high yields and the standards of the fiber quality properties required by the textile industry. Also to determine the predicted and realized gains from different selection indices to improve some economic characters under water stress conditions. Except for lint percentage and Pressley index, F4 generation reduced PCV and GCV values for all studied characters due to reduction in genetic variability and heterozygosity due to different selection procedures that exhausted a significant part of variability. Except for fiber length and micronaire reading, mean performance in the F4 generation was revealed to be higher than those in the F3 generation for all studied characters. However, micronaire reading was lower (desirable) in F4 than F3 generation. Generally, genotypic correlations were higher than phenotypic correlations. Direct selection for lint index (Ped.3) was the most efficient in improving lint cotton yield/plant and bolls/plant. However, the multiplicative index involving all studied characters (I.5) exhibited the highest values for boll weight. Also, the Ped.2 index (direct selection for lint percentage) proved to be the most efficient in improving seed and lint indexes. Direct selection for lint cotton yield/plant (Ped.1) could produce the highest desirable values for lint percentage and seed per boll with a relatively reasonable yield. A selection index involving yield and its components (I.3) is recommended in improving uniformity index, fiber strength, and micronaire reading. The superior five families released from these indices in F4 generation exceeded the better parent for lint cotton yield/plant, bolls/plant, boll weight, seeds/boll, lint index, and reasonable fiber traits. These families could be continued to further generations as breeding material for developing water deficit tolerant genotypes. |
| first_indexed | 2024-04-12T23:02:03Z |
| format | Article |
| id | doaj.art-1a6c3bd01fed486ca07705a1264bfbfc |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-12T23:02:03Z |
| publishDate | 2022-09-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-1a6c3bd01fed486ca07705a1264bfbfc2022-12-22T03:13:02ZengNature PortfolioScientific Reports2045-23222022-09-0112111610.1038/s41598-022-18966-3Evaluation of genetic gains of some quantitative characters in Egyptian cotton cross (Giza 86 × Menoufi) under water deficit stressMohamed S. Abd EL-Aty0Mohamed A. Al-Ameer1Mohamed M. Kamara2Mohamed M. Elmoghazy3Omar M. Ibrahim4Ammar AL-Farga5Amira M. El-Tahan6Agronomy Department, Faculty of Agriculture, Kafr El-Sheikh UniversityCotton Breeding Department, Cotton Research Institute, Agriculture Research CenterAgronomy Department, Faculty of Agriculture, Kafr El-Sheikh UniversityCotton Breeding Department, Cotton Research Institute, Agriculture Research CenterPlant Production Department, Arid Lands Cultivation Research Institute, The City of Scientific Research and Technological Applications, SRTA-CityDepartment of Biochemistry, College of Science, University of JeddahPlant Production Department, Arid Lands Cultivation Research Institute, The City of Scientific Research and Technological Applications, SRTA-CityAbstract This work was carried out to select cotton genotypes adapted to semi-arid climate conditions cultivated under irrigation for high yields and the standards of the fiber quality properties required by the textile industry. Also to determine the predicted and realized gains from different selection indices to improve some economic characters under water stress conditions. Except for lint percentage and Pressley index, F4 generation reduced PCV and GCV values for all studied characters due to reduction in genetic variability and heterozygosity due to different selection procedures that exhausted a significant part of variability. Except for fiber length and micronaire reading, mean performance in the F4 generation was revealed to be higher than those in the F3 generation for all studied characters. However, micronaire reading was lower (desirable) in F4 than F3 generation. Generally, genotypic correlations were higher than phenotypic correlations. Direct selection for lint index (Ped.3) was the most efficient in improving lint cotton yield/plant and bolls/plant. However, the multiplicative index involving all studied characters (I.5) exhibited the highest values for boll weight. Also, the Ped.2 index (direct selection for lint percentage) proved to be the most efficient in improving seed and lint indexes. Direct selection for lint cotton yield/plant (Ped.1) could produce the highest desirable values for lint percentage and seed per boll with a relatively reasonable yield. A selection index involving yield and its components (I.3) is recommended in improving uniformity index, fiber strength, and micronaire reading. The superior five families released from these indices in F4 generation exceeded the better parent for lint cotton yield/plant, bolls/plant, boll weight, seeds/boll, lint index, and reasonable fiber traits. These families could be continued to further generations as breeding material for developing water deficit tolerant genotypes.https://doi.org/10.1038/s41598-022-18966-3 |
| spellingShingle | Mohamed S. Abd EL-Aty Mohamed A. Al-Ameer Mohamed M. Kamara Mohamed M. Elmoghazy Omar M. Ibrahim Ammar AL-Farga Amira M. El-Tahan Evaluation of genetic gains of some quantitative characters in Egyptian cotton cross (Giza 86 × Menoufi) under water deficit stress Scientific Reports |
| title | Evaluation of genetic gains of some quantitative characters in Egyptian cotton cross (Giza 86 × Menoufi) under water deficit stress |
| title_full | Evaluation of genetic gains of some quantitative characters in Egyptian cotton cross (Giza 86 × Menoufi) under water deficit stress |
| title_fullStr | Evaluation of genetic gains of some quantitative characters in Egyptian cotton cross (Giza 86 × Menoufi) under water deficit stress |
| title_full_unstemmed | Evaluation of genetic gains of some quantitative characters in Egyptian cotton cross (Giza 86 × Menoufi) under water deficit stress |
| title_short | Evaluation of genetic gains of some quantitative characters in Egyptian cotton cross (Giza 86 × Menoufi) under water deficit stress |
| title_sort | evaluation of genetic gains of some quantitative characters in egyptian cotton cross giza 86 menoufi under water deficit stress |
| url | https://doi.org/10.1038/s41598-022-18966-3 |
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