METHOD OF CREATING A SPRING BRASSICA NAPUS

摘要

#$%^&*AU2015202535A120150528.pdf#####ABSTRACT Crossing a winter B. napus line with a rapid-cycle B. rapa line has been discovered to provide an unexpectedly simple and efficient way to create a modified B. napus with a spring flowering habit. In one implementation, such a modified B. napus or its progeny is crossed with a second winter B. napus line to produce a plant having a winter flowering habit. This allows one to significantly shorten the development cycle for winter-flowering B. napus lines by conducting part of the breeding program with springflowering time cycles, then migrating the resultant germplasm back into a winterflowering line. 17