Indian Society of Genetics & Plant Breeding

Heterosis breeding in aromatic rice (Oryza sativa L.) for yield and quality characters

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Pollen and spikelet fertility of 75 F1's were counted, total
41 potential restorers and 11 effective maintainers were
identified for different CMS lines, these effective
maintainers can be used to develop new aromatic CMS
lines through repeated back crossing. Forty one hybrids
were evaluated for yield and quality characters with Pusa
Basmati-1 and Basmati-370, respectively. Based on quality
characters, three hybrids
viz., IR 58025 A x PB-6-12-55-5,
IR 68888A x Patloon Tahni and IR 68888A x Gopal Bhog
were identified superior which also exhibited higher yield
heterosis. Hybrid, IR 68888A x Patloon Tahni was early
in maturity and also showed high outcrossing. These
hybrids can be exploited successfully in hybrid rice
breeding programme.

Keywords: Hybrid rice, heterosis, yield and quality characters


Year: 2005
Volume: 65
Issue: 3
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906



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