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Dutta, O. P.
- Studies on Inheritance of Geneic Male Sterility (GMS) and Hybrid Seed Production in Okra [Abelmoschus esculentus (L.) Moench.]
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Authors
Affiliations
1 Indian Institute of Horticultural Research, Bangalore, Karnataka - 560 089, IN
1 Indian Institute of Horticultural Research, Bangalore, Karnataka - 560 089, IN
Source
Journal of Horticultural Sciences, Vol 7, No 2 (2012), Pagination: 199-202Abstract
Inheritance of geneic male sterility in GMS line MS-1 of okra [Abelmoschus esculentus (L.) Moench.] was studied using F1, F2 and test-cross generations of crosses between GMS line MS-1 and normal fertile genotypes, and the varieties Arka Anamika, Parbhani Kranti, Arka Abhay, IIHR-108-1-31, IIHR-109-20-6, IIHR-116-23-6, IIHR- 180-6-3, IIHR-161-10-1 and IIHR-130-2-10. All the F1 were found fertile. Segregation of pollen fertility in F2 and test - cross generations involving ms1 was segregated in the ratio 1 fertile: 1 sterile, respectively. This indicated that GMS trait in the line is controlled by a single recessive gene (ms1ms1). Large-scale F1 hybrid seed production in okra becomes rather slow due to the tedious hand-emasculation, followed by hand-pollination, incurring additional labour and cost of F1 seed production. In comparison to fertile lines, this saves approximately 70% time and manual labour. Use of Geneic Male Sterile (GMS) line MS-1 can make F1 hybrid seed production in okra easy and more economical compared to hand-emasculation.Keywords
Abelmoschus esculentus, Geneic Male Sterility (GMS), Back Cross, Generations, Recessive Allele.- Development of Novel Character in Okra [Abelmoschus esculentus (L.) Moench]
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Authors
Affiliations
1 Division of Vegetable Crops, Indian Institute of Horticultural Research, Hessaraghatta Lake Post, Banaglore-560 089, IN
2 National Research Centre for Onion and Garlic, Rajgurunagar, Pune, IN
1 Division of Vegetable Crops, Indian Institute of Horticultural Research, Hessaraghatta Lake Post, Banaglore-560 089, IN
2 National Research Centre for Onion and Garlic, Rajgurunagar, Pune, IN