Association Analysis in Linseed (Linum Usitatissimum L.)

Abstract

Fifteen advanced lines of linseed (Linum usitatissimum L.) were evaluated to identify the relationship of grain yield and its related attributes during 2010-11 at Barani Agricultural Research Institute, Chakwal, Pakistan. Grain yield (kg/ha) had significant and positive association with plant height, number of primary branches plant^-1, number of capsule plant^-1, number of grains capsule^-1 and 1000 grain weight both at genotypic and phenotypic levels. Therefore focusing on these traits would improve breeding efficiency of linseed in the future breeding programs. Path analysis demonstrated that plant height, number of primary branches plant^-1, number of capsule plant^-1, number of grains capsule^-1 and 1000 grain weight had the positive direct effect in determining the grain yield (kg/ha) in linseed. According to these results, breeding for high grain yielding cultivars of linseed, number of capsule plant^-1 should be kept in mind firstly followed by 1000 grain weight, number of grains capsule^-1, number of primary branches plant^-1and plant height.

Key Words: genotypic correlation, phenotypic correlation, path analysis, Linseed