Biochemical investigation of earliness in radiation induced early flowering mutantlines of jute Corchorus capsularis L

With the help of radiation induced early and late flowering mutantlines of jute, studies have been made to determine the biochemical factors which could regulate the induction and expression of genes for the flowering processes in this plant. Comparative biochemical investigations were done with the parameters like : plant pigments (Chlorophyl a, b and carotenoides), auxin/antiauxin, and gibberellin/anti-gibberellin type of substances. Quantitative as well as qualitative differences of plant pigments were observed between the early and late flowering lines. Extracts of early flowering lines have been found to induce earliness in the late flowering mother variety of jute (D-154). Re-isolated growth inhibitors of early flowering lines have also been found to induce earliness in the late flowering mother variety (D-154). (author)