ORYZA- An International Journal on Rice
  • Year: 2012
  • Volume: 49
  • Issue: 1

Heterosis studies in rice hybrids involving diverse cytosteriles

  • Author:
  • R.L Kunkerkar1, D.S. Sawant2, V.N. Shetye2, P.B. Vanave2
  • Total Page Count: 2
  • Page Number: 60 to 61

1Regional Agricultural Research Station, Karjat, Raigad-410201, Maharashtra

2Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan

Online published on 29 June, 2013.

Abstract

Forty hybrids were developed utilizing five cytoplasmic male sterile lines of four different sources and eight effective restorers and they were studied for the extent of heteorosis for eight different quantitative characters over popular commercial rice hybrid Sahyadri as a standard check. Seven hybrids viz., IR 58025 AI Panvel 1(41.90%), IR 58025 AI IR 5 (36.43%), IR 58025 AI Ratnagiri 3 (33.81%), PMS 2 A IIR 54 (33.57%), PMS 2A I IR 5 (30.95%), PMS 2A I Ratnagiri 3 (30.48%), WA base hybrids and G 46 I Ratnagiri 3 (24.05%)-Gambiaca base hybrid, expressed highly significant positive heterosis for grain yield over rice hybrid Sahyadri.

Keywords

rice, heteorosis, hybrids, cytoplasmic male sterile line