摘要
辽宁省从１９６７年到１９９３年杂交育成大豆品种主要农艺性状遗传改进的趋势是：单株粒重、单株荚数、每荚粒数、单株粒数、百粒重、分枝荚数、分枝粒数、分枝粒重、茎粗增加，生育期、株高、倒伏度减少，其中单株粒重、单株荚数、单株粒数、生育期、株高、茎粗先期变化大而后期变化小，每荚粒数、百粒重、分枝荚数、分枝粒数、分枝粒重先期变化小而后期变化大；主茎节数、主茎荚数、每节荚数、主茎粒数、主茎粒重、生育后期、粒茎比呈先增后减趋势；节间长度、分枝数、生育前期。
Genetic improvement of main agronomic characters of soybean varieties developed by crossbreeding from 1967 to 1993 in Liaoning was studied. Results revealed that seed weight per plant, pods per plant, seeds per plant, stem thickness, seeds per pod, 100-seed weight, pods of branches, seeds of branches and seed weight of branches tended to increase by the procession of crossbreeding. Days from emergemce to maturity, plant height and lodging tended to decrease. Change of seed weight per plant, pods per plant,seeds per plant,days from emergence to maturity, plant height and stem thickness was more obvious in earlier years and was slight in later years. Change of seeds per pod, 100-seed weight, pods of branches, seeds of branches and seed weight of branches was slight in earlier years and was obvious in later years. Nodes of main stem, pods of main stem, pods per node, seeds of main stem, seed weight of main stem, days from full blooming to maturity and seed weight/stem weight tended to increase in earlier years and tended to decrease in later years. Internode length, branches, days from emergence to full blooming and stem weight tended to decrease in earlier years and tended to increase in later years.
出处
《大豆科学》
CAS
CSCD
北大核心
1997年第1期1-5,共5页
Soybean Science
