钼、硼对大豆光合效率的影响  

Effect of molybdenum and boron on photosynthetic efficiency of soybean

作　　者：刘鹏[1] 杨玉爱[2] 

机构地区：[1]浙江师范大学生命与环境科学学院,浙江金华321004 [2]浙江大学资源科学系,浙江杭州310029

出　　处：《植物营养与肥料学报》2003年第4期456-461,共6页Journal of Plant Nutrition and Fertilizers

基　　金：澳大利亚国际农业中心基金(PN9120);浙江省自然科学基金(300284)项目资助。

摘　　要：以大豆(Glycinemax)浙春3号、浙春2号和3811等3个品种为材料,设置了不同的钼、硼处理(低钼低硼,施钼,施硼和钼、硼同施),研究了钼、硼对大豆光合效率的影响。结果表明,施钼或硼促进了大豆叶面积的扩大,提高了大豆光合速率和荚的可溶性糖含量,延缓了大豆生育后期叶绿素的衰退,增强大豆的呼吸作用,降低茎和叶的可溶性糖含量,从而提高了大豆的光合效率,且钼、硼同施作用更大。在对大豆光合叶面积、叶绿素含量和呼吸作用的影响强度上,钼的作用于大硼;对大豆光合速率和可溶性糖含量的影响强度,硼的作用大于钼。3个大豆品种对钼、硼的反应存在一定的基因型差异。The effect of molybdenum and boron on photosynthetic efficiency of three soybean (Glycine max (L.) Merr.) varieties (Zhechun No.3, Zhechun No.2, 3811) with different treatment (without Mo and B, application of Mo alone, application B alone, application of Mo and B combination)were studied. The results showed that, soybean of application Mo and/or B exhibited an increasing of leaf area of photosynthesis, photosynthetic rates and respiration rate and a decrease of soluble carbohydrate of stem and leaf. The soybean of application Mo and/or B delaied decline of chlorophyll of soybean leaf and promoted soluble carbohydrate in the late stage of soybean. Among four treatments in our experiment, the effect of application Mo and B combination on photosynthetic efficiency of soybean was best. There was some difference between the physiological function of Mo and B. The effect of Mo on photosynthetic efficiency of soybean was greater than that of B on leaf area of photosynthesis, respiration rate and contents of chlorophyll of soybean leaf and the effect of B on photosynthetic efficiency of soybean is greater than that of Mo on photosynthetic rates, contents of soluble carbohydrate of pod or grain and partition ratio of dry matter. Some genetic variation of photosynthetic efficiency of three soybean varieties was found and had some variation in the responses to Mo and B among three soybean varieties.

关 键 词：钼 硼 大豆 光合效率 品种 浙春3号 淅春2号 38ll 叶面积 光合速率 荚 可溶性糖含量 叶绿素 呼吸作用 

分 类 号：S565.1[农业科学—作物学]