Identification and evaluation of aromatic short grain and coarse grain potential restorers and maintainers in rice hybrids

  • Satyapal Singh, Parmeshwar Ku. Sahu and Deepak Sharma
Keywords: Rice, CMS, aromatic short grain, restorer, maintainer

Abstract

Three CMS lines IR58025A (Wild abortive (WA) cytoplasm of Oryza perennis), CRMS31A (WA- cytoplasm) and CRMS32A (“Kalinga”cytoplasm from „Dunghansali‟) and 20 diverse testers were crossed in line × tester fashion to generate 60 hybrids. The experiment was laid out in a complete randomized block design with two replications. Observations of pollen fertility and spikelet fertility were carried out for the identification of maintainers and restorers. Out of 60 test crosses 9 restorers exhibited more than 80 % pollen/spikelet fertility with heterotic morphological attributes. Out of 9 restorers two are aromatic short grain type and others 7 are coarse grain type. One maintainer was also identified. Frequency of partial restorer (37) and partial maintainer (11) were high. All the F1 are semi tall except CRMS31A/Jaldubi and CRMS31A/Adhamchini. F1‟s viz. IR58025A/ IR72164-352-2-5-5 and IR58025A/ TOX 981-11-2-3 show high spikelet fertility. No effective maintainer was identified from aromatic short grain rices.
Published
18-11-2014
How to Cite
Satyapal Singh, Parmeshwar Ku. Sahu and Deepak Sharma
Identification and evaluation of aromatic short grain and coarse grain potential restorers and maintainers in rice hybrids. 2014. Electronic Journal of Plant Breeding, 5 2, 138-143. Retrieved from https://ejplantbreeding.org/index.php/EJPB/article/view/103
Issue
Vol 5 No 2 (2014)
Section
Research Article

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