Identification of desirable genotypes in white cabbage (Brassica oleracea var. capitata L.)

Abstract

Twenty-one cabbage genotypes (10 cultivars and 11 hybrids) have been studied for stability of head mass over three growing seasons. The analysis of variance revealed highly significant differences among the genotypes, study years and genotype X year interactions. The stability test showed that seven of the genotypes significantly deviated from the regression line. Four of the seven genotypes were cultivars and three were hybrids. The three hybrids are early, three cultivars are late. These genotypes had quite different regression coefficients which varied around or above the value of one.