硼、锰对大豆主要农艺性状的影响

以2个大豆品种浙春3号和1601为材料,研究了不同硼、锰营养水平下大豆的农艺性状在2个生育期(三叶期和盛花期)的变化以及硼、锰对大豆相关产量性状的影响.结果表明:适量地施硼或锰,促进了大豆株高、叶面积、地上部分生物量和比叶重的增长,增加了大豆的单株粒数、单株荚数、单株粒重和百粒重,提高了大豆的产量;而硼或锰的缺失或过量对大豆均会产生不利的影响.从总体上看,适量硼的作用大于适量锰;适量的硼锰同施对大豆生长最好.2个品种比较,浙春3号抗硼锰丰缺胁迫的能力大于1601.

Effect of boron and manganese application on the agronomic characters of soybean

Two varieties of soybean were employed as the main material in order to study the effect of boron and manganese application on the agronomic characters of soybean. The results showed that application of appropriate B and Mn raised the plant height, leaf area, biomass of upground soybean, leaf specific weight and the yield factors of soybean. The mitigating ability of B to the stress of adverse circumstances is greater than that of Mn for soybean, and the effect of treatment of appropriate B and Mn together is the best. The ability of tolerance to B and/or Mn was showed that: Zhechun No.3>1601.