Pattern of Glucosinolate Changes in Indian Mustard (Brassica Juncea L.) During Different Developmental Stages

The changes in total glucosinolate in leaves, roots and stem at 3 developmental stages, pods and seeds of four advanced breeding lines BPR-897-4-11-8-4-91-2, BPR-897-4-11-8-4-91-5, BPR-897-411-8-6-93-10, BPR-897-4-11-8-6-93 -11 and Varuna variety of Indian mustard were investigated during 2008–09 cropping season. Highly significant data between developmental stages, plant parts and genotypes interactions suggested differential response of mustrad genotypes to glucosinolates. Glucosinolates in leaves were, in general, higher than that of stem and roots except for roots at 45 days after sowing (DAS). Genotype BPR 897-4-11-8-91-2 accumulated more glucosinolates in stem as compared to leaves and genotype BPR 897-4-11-8-6-93-11 showed more glucosinolates in leaves than roots at 45 DAS. Glucosinolates in stem and roots decreased at higher rate in comparison to that of leaves. Leaf glucosinolates at 45 DAS had positive relationship with that of 60 DAS (r = 0.871). Total glucosinolates in pods and seeds were also positively correlated (r = 0.814) and hence could be a good criterion for identifying low glucosinolates lines at early stage.