Abstract
Early‐maturing segregates are frequently eliminated in soybean (Glycine max (L.) Merr.) bulk populations. Six simulated bulks were made of five cultivars in maturity groups I through V, the two cultivars in each bulk differed by at least two maturity groups. These bulks were planted at several dates in 4 years to determine whether late planting would increase the relative reproduction of the early cultivars in the bulks. Their relative reproductivity increased twice, decreased once, and did not change once. The early cultivars in all bulks were at a reproductive disadvantage compared to the relationship in pure stands. The reproductive disadvantage tended to increase with differences in the time of maturity in the simulated bulks, although plant size probably was more important than maturity per se. Even though the early cultivars in the bulks did not consistently gain in reproductive advantage with late planting, late planting should help maintain them in bulk populations because of improved seed quality.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
