Study on correlation among different character pairs and path coefficient analysis in yellow sarson (Brassica Rapa. Var. Yellow Sarson)

Abstract

Correlation and path coefficient analysis carried out using forty four genotypes of yellow sarson (Brassica rapa. Var. yellow sarson) were evaluated for thirteen quantitative and qualitative characters. Seed yield per plant revealed significant and positive correlation with biological yield, while positive but non-significant correlation with silique length, harvest-index, seeds per-siliqua, day to maturity, 1000-seed weight, while non-significant negative correlation with plant height and primary branches per plant, significant and negative correlation coefficient of oil content was observed with silique on main raceme. Oil content showed negative and non-significant association with plant height length, length of main raceme and primary branches per plant, while seeds per silique and days to 50 percent flowering showed significant and positive correlation with oil content. Harvest-index showed significant and negative correlation coefficient with plant height. 1000 seed weight exhibited significant positive correlation with silique length and seed per silique. Biological per plant (g) exhibited significant and positive correlation with plant height and seed per silique non-significant and positive correlation with silique length, days to 50 percent flowering and plant height. Siliqua length exhibited significant and positive correlation with plant height, siliquae on main raceme significant and positive association with length of main raceme exhibited significant and positive association with plant. Height primary branches per plant exhibited highly non-significant and positive association with length of main raceme, plant height exhibited non-significant and positive association with day to maturity and day to 50 percent flowering and days to maturity exhibited highly non-significant and positive association with day to 50 percent flowering. The path coefficient analysis of biological yield showed maximum direct effect, while silique length and oil content exerted negative direct effect on seed yield and days to 50 percent flowering exerted negative indirect effect on seed yield.