somaclonal variation in bread wheat (triticum aestivum l.). 2. comparative field performance of somaclones and their original cultivars
Abstract: Thirty-one (31) somaclones in two advanced successive selfed generations (R6 and R7) regenerated in vitro from six spring bread wheat (Triticum aestivum) cultivars (Sakha 8, Sakha 69, Giza 157, Giza 160, Lerma Rojo 64 and Tobari 66) have been evaluated under field conditions during 2 seasons. Agronomic traits and yield components were studied in the somaclones and compared with their non-tissue culture parental lines. The combined analysis of variance revealed the presence of highly significant differences between somaclones and their original cultivars for days to heading, days to physiological maturity, grain yield and yield components. In general, variation was observed within and between somaclones and their original cultivars for days to heading, days to physiological maturity, plant height, grain yield and yield components, especially those derived from two Egyptian cultivars (Sakha 8, Sakha 69). Moreover, 5 out of 19 somaclones derived from Sakha 8 cultivar, 4 out of 5 somaclones from Sakha 69 and one somaclone from Giza 157 were superior to their original cultivars. While, no positive significant differences were found between Giza 160, Lerma Rojo 64 and Tobari 66 cultivars and their 6 derived somaclones. This indicated that somaclonal variation arising from tissue culture could successfully produce genotypes of agronomically superior traits to the parental cultivars that would be useful in wheat breeding programs.
Publication year 2003
Pages 457-469
Availability location معهد بحوث المحاصيل الحقلية – 9 شارع الجامعة – الجيزة
Availability number
Organization Name
serial title مجلد المؤتمر الثالث لتربية النبات-الجيزة 26 أبريل 2003
Author(s) from ARC
External authors (outside ARC)
    قاسم زكى أحمد - قسم الوراثة، كلية الزراعة، جامعة المنيا، المنيا، ؛
Agris Categories Agriculture - General aspects
AGROVOC
TERMS		 Triticum aestivum.
Publication Type Conference/Workshop
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