不同浓度生长促控剂PBOG对大豆产量的影响  

Effects of Different Concentrations of Growth Promoter and Control Medicament PBOG on Yield of Soybean

作　　者：王鑫 宋爽 周琦 王玺越 武子豪 董守坤[1] WANG Xin;SONG Shuang;ZHOU Qi;WANG Xiyue;WU Zihao;DONG Shoukun(College of Agriculture,Northeast Agricultural University,Harbin 150030)

机构地区：[1]东北农业大学农学院,哈尔滨150030

出　　处：《中国农学通报》2023年第10期1-4,共4页Chinese Agricultural Science Bulletin

基　　金：国家重点研发计划“大田经济作物逆境生理及调控”(2018YFD1000903)。

摘　　要：为揭示生长促控剂PBOG对大豆产量及其相关性状的影响,探究其适宜的施用浓度,选用亚有限结荚习性大豆品种‘垦丰16’为材料,在大豆初花期使用不同浓度梯度PBOG(0、0.5、1、2、3 g/L)进行叶面喷施,探究PBOG对大豆株高、主茎节数、底荚高度、有效荚数、单株粒数、百粒重、产量等性状的影响。结果表明,在PBOG浓度为3 g/L时,株高与底荚高度降幅最大且差异显著,两者分别下降了41.9%、44.1%;而百粒重在此浓度下达到最大值19.05 g,增加13.3%;PBOG浓度为1 g/L时,主茎节数、有效荚数、单株粒数显著增加;产量随着PBOG浓度增加表现出先上升后下降的趋势,在浓度为1 g/L时最大,涨幅21.6%,而后逐渐降低,在3 g/L时低于对照组。综上,对于亚有限结荚习性品种‘垦丰16’,PBOG最适施用浓度为1 g/L,此浓度下增产幅度达21.6%,且提高了植株的抗倒伏能力。In order to reveal the effect of PBOG on yield and yield-related traits of soybean,and to investigate its suitable application concentration,we chose the sub-limited podding habits soybean variety‘Kenfeng 16’as the material,and conducted foliar spray with five different concentration gradients of PBOG:0,0.5,1,2 and 3 g/L at the early flowering stage of soybean.The effects of PBOG on soybean plant height,node number of main stem,bottom pod height,number of effective pods,kernel number per plant,100-kernel weight and yield were investigated.The results showed that the plant height and bottom pod height decreased the most and significantly at PBOG concentration of 3 g/L,with a decrease of 41.9%and 44.1%,respectively;while 100-kernel weight reached the maximum of 19.05 g at this concentration,with an increase of 13.3%.The node number of main stem,number of effective pods,and kernel number per plant increased significantly at PBOG concentration of 1 g/L.The yield showed a trend of first increase and then decrease with the increase of PBOG concentration,with the maximum increase of 21.6%at the concentration of 1 g/L,and then gradually decreased,and was lower than that of control at 3 g/L.In conclusion,the optimum application concentration of PBOG is 1 g/L for the sub-limited podding habits variety‘Kenfeng 16’,the yield can be increased by 21.6%at this concentration,and the lower plant height can improve the lodging resistance.

关 键 词：大豆 PBOG浓度 株高 产量 产量性状 

分 类 号：S363[农业科学—作物栽培与耕作技术]