BIOINFOLET - A Quarterly Journal of Life Sciences
Web of Science
  • Year: 2013
  • Volume: 10
  • Issue: 2b

Study on fertility restoration of rice (Oryza sativa L.) hybrids

  • Author:
  • B.P. Mallikarjuna, N. Shivakumar, G. D. Prahalada, J. Devendrappa, Shrikanth , M. D. Muttanna
  • Total Page Count: 3
  • Page Number: 647 to 649

*Zonal Agriculture Research Station, V.C.Farm, Mandya, Karnataka, India

**Department of Agricultural Entomology, UAS, Raichur, Karnataka, India

***Department of Seed Science and Technology, UAS, Dharwad, Karnataka, India

Department of Genetics and Plant Breeding, UAS, GKVK, Bengaluru, India

Online published on 6 May, 2013.

Abstract

Eight cytoplasmic male sterile (CMS) lines of rice (Oryza sativa L.) with wild abortive cytoplasm and one with Kalinga cytoplasm source were crossed with ten testers to assess their maintainer/restorer behavior. Most of the hybrids expressed potential fertility restoration reaction while only five hybrids exhibited complete sterility, which had MSN-75 as common male parent. Among the male parents tested, Thanu, KMR-3, KMR-4, KMR-12, MSN-36, MSN-91, MSN-93, MSN-98 and MSN-99 were recognized as effective restorers for all the nine cytoplasmic male sterile lines. MSN-75 produced completely sterile hybrids with five CMS lines KCMS 44A, KCMS 45A, KCMS 47A, KCMS 48A and KCMS 52A. Hence MSN-75 was identified as effective maintainer for the five CMS lines.

Keywords

Fertility restoration, Maintainer, Pollen fertility and Restorer