摘要
Progress in cotton improvement slowed in the United States the past 20 years, possibly reflecting genetic stagnation. The pedigrees of popular cultivars contain many of the same parents, evidence of a narrow genetic base. The Gossypium genetic base is wide, but only a fraction of the available genetic variation is used in breeding cultivars.
……
出处
《棉花学报》
CSCD
北大核心
2002年第z1期92-,共1页
Cotton Science
