Varietal Improvement of Brassica Species through Introduction, Hybridization and Mutation Breeding Techniques. Final Report for the Period 1 November 1987 - 31 May 1988.

摘要

Germplasm of Brassica campestris and Brassica juncea was collected from various parts of Bangladesh and evaluated for yield, oil content etc. prior to the breeding program. Seeds of the B. campestris variety YS-52, possessing good agronomic characteristics, were treated with mutagens (gamma rays and sodium azide) to widen the genetic variation. Mutants were selected for higher yield and resistance against Alternaria brassicae. The two mutant lines BINA 1 and BINA 2 were selected exceeding the parent variety considerably in yield and disease resistance. They are candidates for recommended varieties. Brassica juncea variety RCM 625 was treated with gamma rays and EMS. Four higher yielding and earlier maturing mutants are being evaluated further. 6 tabs. (Atomindex citation 20:018521)