Trends in Biosciences
  • Year: 2014
  • Volume: 7
  • Issue: 15

Genetic Studies of Root and Yield Traits for Drought Tolerance in Rice (Oryza sativa. L)

  • Author:
  • V. Karpagam1,, S. Jebaraj1, S. Rajeswari2, C. Vanniarajan1, K. Balakrishnan3, M. Muthamilan4
  • Total Page Count: 3
  • Page Number: 2004 to 2006

1Department of Plant Breeding and Genetics, Agricultural College and Research Institute, Madurai, India

2Center for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore, India

3Department of Seed Science & Technology, Agricultural College and Research Institute, Madurai, India

4Department of Plant Pathology, Agricultural College and Research Institute, Madurai, India

*Email: priyatnau2007@yahoo.co.in

Online published on 31 December, 2014.

Abstract

Root systems are one of the important components of drought resistance. Heritability estimates along with genetic advance will be helpful in predicting the gain under selection. The differences between PCV and GCV were less for all the characters except relative water content. Among the 18 traits studied, 14 traits recorded high heritability with genetic advance. The highest value of heritability was observed by single plant yield and genetic advance for the trait root length density

Keywords

Drought tolerance, genetic variability, genetic advance, rice