FOLLOWING THE METHOD OF MAINTENANCE AND PRODUCE OF THE BREEDER’S SEED OF SUPER GIZA 86 EGYPTIAN COTTON CULTIVAR DURING 2021-2024 SEASONS | ||||
| Egyptian Journal of Plant Breeding | ||||
| Volume 29, Issue 1, April 2025, Page 17-33 PDF (998.17 K) | ||||
| Document Type: Original research | ||||
| DOI: 10.12816/ejpb.2025.435086 | ||||
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| Abstract | ||||
| The present study was carried out at El-Gemmeiza Agricultural Research Station, El-Gharbia Governorate, Cotton Research Institute, during 2021-2024 seasons to produce the breeder’s seed of Super Giza 86 Egyptian cotton cultivar. The purpose of the present study is to follow the strategy of maintaining cotton varieties and produce breeder's seed that carry the genetic traits of the standard cotton cultivar Super Giza 86. The results revealed that the process of self-pollination with continuous selection, which occurs every season, is considered necessary to maintain genetic purity and eliminate any off-type plants from the cotton cultivar Super Giza 86 breeding population as a result of highly homozygous in minor genes or recombination among themselves. Furthermore, the current method for maintaining the genetic purity of Egyptian cotton varieties, which relies on mixing the offspring of several plants rather than propagating the offspring of a single selected plant, is thought to be more effective in overcoming environmental fluctuations in yield and quality characteristics. | ||||
| Keywords | ||||
| Gossypium barbadense L; Cotton; breeder’s seed; Nucleolus; Super Giza 86 | ||||
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