摘要
为探索行距及种植密度对黄淮海夏大豆生长的影响,文章以郑7051、郑1825、郑1307和中黄13为研究对象,设置2种行间距(40和60 cm)及3种种植密度(18.0万、22.5万和27.0万株/hm^(2)),探究不同行间距和种植密度对大豆生长发育及产量的影响。结果表明,行间距为60 cm时,大豆生育期缩短。随着种植密度增加,大豆开花至成熟时间及生育期延长,差异均小于1.5 d。株型相关性状中,行间距与种植密度对株高无显著影响。行间距为60 cm时,底荚高度和有效分枝数显著增加。随着种植密度增加,底荚高度增加,有效分枝数显著减少。产量相关性状中,行间距对单株产量及小区产量无显著影响;但随着行间距增大,百粒重显著增加。随着种植密度增加,百粒重和单株产量显著降低,小区产量升高,其中中黄13小区产量最高。
To investigate the effects of row spacing on summer soybean growth in the Huang-Huai-Hai region,this study employed Zheng 7051,Zheng 1825,Zheng 1307 and Zhonghuang 13 under two row spacings(40 and 60 cm)and three planting densities(180000,225000 and 270000 plants/ha).The impacts of different row spacings and planting densities on soybean growth,development,and yield were examined.The results showed the number of days in the growth period shortened under 60 cm row spacing.With increasing density,the time from flowering to maturity and the growth period of soybeans were prolonged,though the difference was less than 1.5 days.Among plant-type traits,row spacing and planting density had no significant effected on plant height,at 60 cm row spacing,pod height and effective branch number significantly increased;as planting density increased,pod height rosed,branch number decreased.Regarding yield traits,row spacing had no significant effected on plant yield or plot yield,as row spacing increased,100-seed weight significantly increased.With increasing planting density,100-seed weight and plant yield significantly decreased,plot yield increased.Among the varieties,Zhonghuang 13 exhibited the highest plot yield.
作者
武永康
张体德
李春
周有印
王金社
张浩
卢为国
WU Yongkang;ZHANG Tide;LI Chun;ZHOU Youyin;WANG Jinshe;ZHANG Hao;LU Weiguo(Institute of Crop Molecular Breeding,Henan Academy of Agriculture Science,Zhengzhou 450002,China;Dancheng County Institute of Agricultural Sciences,Zhoukou 477150,Henan,China;Xuchang Seed Industry Development Center,Xuchang 461000,Henan,China)
出处
《大豆科技》
2025年第5期10-16,24,共8页
Soybean Science & Technology
基金
国家重点研发项目—大豆轻简化丰产关键技术研发(2022YFD2300102)
国家大豆产业技术体系郑州综合试验站项目(CARS-04-CES18)。
关键词
黄淮海夏大豆
宽行间距
种植密度
生育期
株型
产量
Summer soybean in Huang-Huai-Hai region
Wide row spacing
Planting density
Growth period
Plant architecture
Yield
