钼、硼浸种对大豆幼苗生理特性的影响

以浙春3号大豆为研究材料，设置了不同的钼、硼浸种对大豆种子的萌发和幼苗生理特性的影响，结果表明：低浓度钼或硼有利于大豆种子的萌发，钼、硼浸种时间以12h最佳，钼浸种或不过量硼浸种将增大豆幼苗的呼吸速率，提高过氧化物酶（POD）、过氧化氢酶（CAT）和超氧化岐化酶（SOD）等抗逆性酶的活性，降低质膜透性（MP）及丙二醛（MDA）和脯氨酸（Pro)的含量，中等浓度的钼、硼浸种效果最显著，而高浓度浸种将产生相反的效果。

Effect of soaking of molybdenum and boron on physiological characteristics of soybean seedling

The study deals with the germination of soybean seed and physiological characteristics of soybean seedling with different supplementation of soaking concentration of molybdenum (Mo) and/or boron (B) during soybean seed germination in one pot-grown soybean variety (Zhechun No. 3). The soaking of low concentration of Mo and/or B is very beneficial to germination of soybean seed and the most advantageous time of soaking of Mo and/or B to germination of soybean seed is 12 hours. The control plant under soaking of Mo or at appropriate level soaking of B exhibits an increase of respiration rate of soybean seedling, an enhancement of peroxydase (POD). catalase (CAT), and superoxide dismutase (SOD) activities and a decrease of membrane permeability (MP). mal-ondialdehyde (MDA) and proline (Pro) contents. The effect of soaking by medium concentration (Img/L) of Mo and B on physiological characteristics of soybean seedling is the best among various concentrations (0. 1,1. 10mg/ mol) of Mo and/or B, whereas soaking of high concentration of B. e.g. 10mg/L, would lead to an adverse effect.