frequency of male sterility factors in ‘behairy red’ onion.
Abstract: Frequency of cytoplasmic and genetic factors controlling male sterility in the Egyptian onion ( Allium cepa L. ) cv. Behairy Red was studied during 2001-05 . In the first season (2001/02), 8 male–sterile plants were found out of 5240 plants examined at El-Gemmiza Research Station.
These male sterile plants were left for open pollination. In the follwing season (2002/03), seeds of open pollinated male sterile plants were sowed in commercial fields, Giza Governorate for bulb production. Bulbs obtained were planted in the 2003/04 season for seed production of these progenies.The progenies of male sterile plants were inspected in April 2004. Out of 102 progenies examined, only 31 were found to be male sterile plants. Inspection of ‘Behairy Red’ population was repeated at El-Gemmiza Station during the 2002/03 season. Out of 7560 plants inspected, 48 plants were found to be male sterile, and they were left for open pollination. In the follwing season (2003/04), seeds of open pollinated male sterile plants were sowed in commercial fields, Giza Governorate for bulbs production . Bulbs were planted in the 2004/05 season for seed production of these progenies. The progenies of male sterile plants were inspected in April 2005. Out of 979 progenies examined, only 426 were found to be male sterile plants . Average frequency of male sterile plants was 0.0034, while average frequency of the ms locus was estimated as 0.3695. Therefore, average frequency of the Ms locus was estimated as 0.6305. Average frequency of the sterile S cytoplasm was estimated as 0.0222, while that of the N cytoplasm was 0.9778. The frequency of the N ms ms genotype was estimated as 0.13745.
Publication year 2006
Pages 269-276
Availability location معهد بحوث المحاصيل الحقلية 9- شارع الجامعة- الجيزة
Availability number
Organization Name
serial title المجلة المصرية لتربية النبات:
Author(s) from ARC
External authors (outside ARC)
    خالد السيد على عبد العاطى قسم الخضر، كلية الزراعة ، جامعة القاهرة
    أحمد عبد المنعم حسن - قسم الخضر، كلية الزراعة ، جامعة القاهرة
Agris Categories Agriculture - General aspects
AGROVOC
TERMS		 Onions.
Publication Type Journal
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