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Swamy, K. R. M.
- Studies on Inheritance of Geneic Male Sterility (GMS) and Hybrid Seed Production in Okra [Abelmoschus esculentus (L.) Moench.]
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PDF Views:103
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]
Abstract Views :169 |
PDF Views:96
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
Source
Journal of Horticultural Sciences, Vol 3, No 1 (2008), Pagination: 66-67Abstract
Transgressive segregation in the population of IIHR-31-1-2 x Arka Anamika BC3 F1-F6 generations led to the development of, various novel characters such as, ridgeless fruits (round fruit) and enhanced nodal productivity bearing short internodal length in okra selection-1, which was found to be promising for cultivation with high yield and good fruit quality. It can be grown both during Kharif and summer seasons. Okra selection-1 was also found to exhibit smooth fruits, high yield potential with sturdy plant habit and field tolerance to fusarium wilt and YVMV. Due to rapid rate of increase of processing in okra by freezing and canning, Okra selection I may be an ideal fruit type for freezing because of its short, smooth, dark green and round or multifaceted fruits with low mucilage content.Keywords
Novel Character, Ridgeless, Introgression, Processing.- Augmented BIB Design-An Alternative Statistical Design in Germplasm Evaluation Trials
Abstract Views :282 |
PDF Views:126
Authors
Affiliations
1 Section of Economics and Statistics, Indian Institute of Horticultural Research, Bangalore-560089, IN
2 Division of Vegetable Crops, Indian Institute of Horticultural Research, Bangalore-560089, IN
1 Section of Economics and Statistics, Indian Institute of Horticultural Research, Bangalore-560089, IN
2 Division of Vegetable Crops, Indian Institute of Horticultural Research, Bangalore-560089, IN