不同硼水平与光照条件的交互作用对春小麦生长发育和结实的影响

Affection of the Interaction between the Different Rate of the Boron and Illumination Condition to the Gr owth and Output of the Spring Wheat

用溶液培养法对硼和光照与小麦生长发育及结实率的关系进行了试验研究。结果表明:缺硼小麦株高和干物重下降;光照减弱,小麦干物质和株高明显降低。相反较高硼的供给可以增强小麦的抗逆性。缺硼严重影响小麦结实率,甚至导致小麦不结实;在相同供硼水平下,小麦硼积累量随光照减弱而降低。

The experiment was conducted to stud y the interaction of boron and illumi nation to the percentage setting of spring wheat by solution culture.The results showed,on the one hand,that the height and dry matter of spring wheat were decreased under boron deficien cy and decreased significantly under the condition of boron deficiency a nd low illumination happened at the same ti me.On the other hand,the wheat' s resistance to poor conditions was i ncreased when appropriate boron was applied.Boron deficiency has effected the percentage setting of wheat,and even c aused the no grain setting.Under the same r ate of boron applied,boron accumula tion of wheat decreased with the illu mi-nation descended.