【摘要】 根据中国高硼土壤面积的分布,通过对不同小麦品种的硼处理研究表明,土壤硼毒对小麦生长有明显的影响。表现在黄叶率增加,干物质生产受阻,根系分布浅、根量小,而且根系比地上部分对硼毒更敏感。品种基因型之间对硼的反应存在着显著的差异,植株体内硼浓度随品种基因型和土壤硼含量的不同也有明显变化。更多还原

【Abstract】 According to high boron soil distribution in China,the responses of wheat varieties to boron toxicity were studied.The results as follows,soil boron concentration significantly affected wheat growth,that is more yellow leaves,less dry matter,undeveloped root system under high boron concentration and the root systems were more sensitive to boron than shoots.The responses of wheat varieties to soil boron toxicity were significantly different.The boron concentrations in plants change with the varieties and soil boron concentrations.So it is possible to select the boron resistant varieties in alkaline soil with high boron.更多还原