Screening of rice varieties for tolerance to acidity

Abstract

A pot culture experiment wss conducted to screen out the most tolerant variety that could be grown in a highly acid soil from among 39 varieties cultivated in Kerala. The varieties were screened for tolerance to acidity using the method of D2 statistics, selecting the important characters and thus three clusters were formed. They were characterised as tolerant, medium tolerant and least tolerant varieties to acidity. Among the tolerant varieties, Jyothi variety ranked first.