Dry matter production at different growth phases and its variability inCorchorus capsularisL.

Abstract

Pattern of dry matter distribution within different plant parts in 15 genotypes of Corchorus capsularis jute was estimated. Significant differences for distribution of dry matter were observed. Linear increase in dry weight of root, leaf and stem was recorded following the progress of growth period in most of the genotypes. Consistent superiority with respect to dry matter production in root, leaf, stem and bark with high bark to stick ratio was shown by CEX 040. On the other hand, CEX 048 had highest dry seed and pod weight. CEX 040 and CEX 048 can be recommended for commercial production of fibre and seed respectively. Least environmental influence was observed in partitioning of dry matter. Various components for fibre yield was predominantly controlled by additive gene action and that for seed by both additive and non additive gene actions. Dry matter in bark showed significant positive correlations with that of root at 120 days, leaf at 60 days, stem at 90 and 120 days whereas seed weight showed similar relationship with pod weight, leaf dry weight at 90 days and stem dry weight at 60 and 90 days.