黑龙江农业科学Issue(12)：20-28,9.DOI:10.11942/j.issn1002-2767.2023.12.0020
不同植物生长调节剂对大豆生长及产量的影响
Effects of Different Growth Regulators on Growth and Yield of Soybean
摘要
Abstract
The effects of seed dressing and foliar spraying with different plant growth regulators on the growth and yield of soybean were studied.The experiment was conducted in the Experimental Base of Heilongjiang Academy of Agricultural Reclamation Sciences from 2019 to 2021,the effects of seed dressing on root morphology,chlorophyll,leaf area index(LAI)and two treatments on aboveground morphology and yield components of soybean were studied by seed dressing Abt rooting powder No.3,multi-minor cold-resistant and drought-resistant and water-retaining seed coating agent,and foliar spraying with adoxins,brassinolide,uniconazole and amyl ester.The results showed that the length of main root,the length of lateral root and the number of lateral root increased obviously after the seeds were treated with ABT rooting powder No.3,but the effect on yield was not significant.Application of uniconazole at the beginning of flowering stage reduced plant height by 10.22％as compared with the control,and decreased leaf area index(LAI)significantly at R2 and R4 stages.Aminoacyl esters and Brassino lactone promoted leaf growth in R4 and R6 stages,respectively,but had no significant effect on chlorophyll content.The effect of chemical control agents on biological yield was mainly reflected in increasing pod dry weight.In R6 stage,pod dry weight of each treatment was significantly higher than that of the control.In 2020,the 100-seed weight was 20.6 g,which was 3.5％higher than the control.Compared with the control,the yield of Aminoacyl esters increased by 41.56％in 2019 and 17.73％in 2020.关键词
植物生长调节剂/形态指标/叶绿素含量/产量性状Key words
soybeans/plant growth regulators/morphological index/chlorophyll content/yield traits引用本文复制引用
韩冬,周伟鑫,张景云,吴成龙,王平..不同植物生长调节剂对大豆生长及产量的影响[J].黑龙江农业科学,2023,(12):20-28,9.基金项目
北大荒集团2023年基层农技推广体系改革与建设补助项目 （）
高标准农田建设和黑龙江垦区社会公益性事务专项. （）
