小麦高矮秆混作对产量和群体特征的影响

By mixed cropping of wheat varieties with different height, we try to shape a more efficient canopy structure; we set 3 composite and 2 mixing ratios among four varieties to test the yield performance and population characteristics. The results show that the blends of Shimai15 and Guan35 can significantly increase yield, the production of the other treatment of cultivar blending was close to the high-yielding varieties in control groups; the underlying transmission rate was increased and the leaf area index is kept at a moderate level. The Water use efficiency (WUE) was improved at the same time. These studies suggest that, through high-dwarf varieties of mixed cropping, can significantly improve population structure and improve wheat production; it's not only an important way to increase and stable the yield production but also a way of water-saving.