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以普遍报道的几种外源酚酸为试剂,通过盆栽实验,旨在探讨不同浓度外源酚酸对苗期大豆生长发育的影响。通过设置5种不同浓度外源酚酸的盆栽试验,测定不同浓度外源酚酸对盆栽大豆苗期生长发育指标影响。结果表明不同浓度3种外源酚酸对苗期大豆株高的影响总体较小。1.09 g/kg苯甲酸处理和肉桂处理的苗期大豆叶面积与对照差异达到极显著水平。1.09 g/kg苯甲酸处理和香草酸处理均显著增加了盆栽大豆根瘤数,肉桂酸影响较小。1.09 g/kg不同浓度3种酚酸对盆栽大豆根冠比影响最大。总体上,低浓度外源酚酸对盆栽大豆生长发育影响效果不显著;高浓度外源酚酸抑制了盆栽大豆地上部分生长发育,增加了盆栽大豆根瘤数和提高了盆栽大豆根冠比。
Several commonly reported exogenous phenolic acids as reagents, through pot experiments to explore the different concentrations of exogenous phenolic acids on seedling growth and development. Pot experiments were conducted to determine the effects of different concentrations of exogenous phenolic acids on the growth and development of potted soybean at seedling stage. The results showed that the effects of different concentrations of three kinds of exogenous phenolic acids on seedling soybean plant height were generally small. The leaf area at seedling stage of 1.09 g / kg benzoic acid and cinnamon reached the extremely significant difference with the control. 1.09 g / kg benzoic acid and vanillic acid treatment significantly increased the number of tuber nodules, cinnamic acid less affected. 1.09 g / kg different concentrations of three kinds of phenolic acids on potted soybean root-crown ratio greatest impact. In general, the effects of low concentrations of exogenous phenolic acids on the growth and development of potted soybean were insignificant. High concentrations of exogenous phenolic acids inhibited the growth and development of potted soybean, increased the number of tuberous soybean nodules and increased the root / shoot ratio of potted soybean.