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.
作者
王鑫
宋爽
周琦
王玺越
武子豪
董守坤
WANG Xin;SONG Shuang;ZHOU Qi;WANG Xiyue;WU Zihao;DONG Shoukun(College of Agriculture,Northeast Agricultural University,Harbin 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)。
关键词
大豆
PBOG浓度
株高
产量
产量性状
soybean
concentration of PBOG
plant height
yield
yield trait
