摘要
为了调查根瘤菌拌种结合生长调节剂喷施对大豆苗期生长及籽粒产量和品质的影响,通过室内混合接种根瘤菌Y63-1(Bradyrhizobium elkanii)/Y63-2(Rhizobium sp.)、喷施复配生长调节剂、根瘤菌接种结合复配生长调节剂梯度喷施的处理,分析了不同处理对中豆63(ZD63)幼苗生长发育的影响。同时在鄂州和阳逻两个试验点鉴定了根瘤菌Y63-1/Y63-2接种结合复配生长调节剂喷施对ZD63、中豆57(ZD57)和油6019(Y6019)三个大豆品种产量和品质的影响。结果表明:根瘤菌Y63-1/Y63-2接种后ZD63幼苗根瘤数量与根瘤干重均较对照显著增加;复配生长调节剂梯度喷施幼苗后一级侧根数和单株生物量明显增加,复配生长调节剂按1/750~1/500原液浓度喷施效果最明显;室内根瘤菌接种结合复配生长调节剂喷施处理ZD63后结瘤数量和根瘤干重增加、幼苗增高和茎增粗、单株生物量增加;大田根瘤菌拌种结合复配生长调节剂(1/500原液浓度)喷施处理ZD63、ZD57和Y6019幼苗,处理组较对照ZD57籽粒产量构成因子和产量增长不显著,但Y6019和ZD63单株粒数增加10.5%~26.7%、单株粒重增加13.4%~27.3%、产量增加15.2%~20.5%,增加显著。三个品种两个试验点籽粒粗蛋白和油脂含量处理和对照差异不显著。本文研究结果揭示了根瘤菌接种结合生长调节剂喷施能够提高大豆产量,为生产上应用这一技术提升大豆产量提供了技术参考。
To investigate the effects of rhizobium seed coating combined with growth regulator spraying on soybean seedling growth as well as grain yield and quality,the treatments including indoor inoculation with a mixture of rhizobia Y63-1(Bradyrhizobium elkanii)/Y63-2(Rhizobium sp.),spraying with compound growth regulators,and Y63-1/Y63-2 inoculation combined with gradient spraying of compound growth regulators on ZD63 seedlings were conducted.The effects of different treatment on the growth and development of ZD63 were analyzed and compared.Meanwhile,Field trials at E-zhou and Yangluo were conducted to assess the impact ofY63-1/Y63-2 inoculation combined with compound growth regulator spraying on the yield and quality of ZD63,ZD57,and Y6019.The results showed that after inoculation with Y63-1/Y63-2,the number of nodules and nodule dry weight of ZD63 seedlings increased significantly compared to the control.Gradient spraying of compound growth regulators increased the number of primary lateral roots and the biomass per plant significantly with the most pronounced effect at a concentration of 1/750-1/500 of the original solution.The combination of rhizobium inoculation with compound growth regulator spraying indoor increased the nodule number and nodule dry weight,the height of seedlings,the thickness of stems,and biomass per plant of ZD63.In field treatments,the coating seeds with rhizobium and spraying compound growth regulator(1/500 original solution concentration)did not significantly increase the yield components or yield of ZD57 compared to the control,however it increased the number of grains per plant increased by 10.5%~26.7%,the grain weight per plant by 13.4%~27.3%,and the yield by 15.2%~20.5%of Y6019 and ZD63 with significant difference.The content of crude protein and oil were not significant different between treated and control groups for all varieties.The results of this study indicate that rhizobium inoculation combined with growth regulator spraying can improve soybean yield,providing a technical reference for its application in enhancing soybean yield.
作者
李嵩
冷飘
金拂晓
袁松丽
张婵娟
陈水莲
郝青南
单志慧
陈李淼
曹东
郭葳
杨红丽
杨中路
周新安
陈海峰
沙爱华
黄毅
LI Song;LENG Piao;JIN Fu-xiao;YUAN Song-li;ZHANG Chan-juan;CHEN Shui-lian;HAO Qing-nan;SHAN Zhi-hui;CHEN Li-miao;CAO Dong;GUO Wei;YANG Hong-li;YANG Zhong-lu;ZHOU Xin-an;CHEN Hai-feng;SHA Ai-hua;HUANG Yi(MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River(Co-construction by Ministry and Province)/Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland/College of Agriculture of Yangtze University,Jingzhou 434025,China;Institute of Oil Crops,Chinese Academy of Agricultural Sciences/Key Laboratory of Biology and Genetic Improvement of Oil Crops,Ministry of Agriculture and Rural Affairs,WuHan 430062,China)
出处
《中国油料作物学报》
北大核心
2026年第1期209-216,共8页
Chinese Journal of Oil Crop Sciences
基金
农业生物育种重大专项(2023ZD0403405)。
关键词
大豆
植物生长调节剂
根瘤菌
产量提升
soybean
plant growth regulators
Rhizobia
yield improvement
