Response of Two Different Spike-type Wheat Cultivars to Leaf-cutting

This article makes a study on the response of two different spike-type wheat cultivars to leaf-cutting at heading stage.The results show that leaf-cutting will improve the photosynthetic rate of remnant leaves,accelerate substance reserved in node transfer to grain.However,it will result in the falling of setting kernels,grain weight,protein and wet gluten content.With more of the leaves being cut and the position of cut leaf rising,so do the effect.After leaf-cutting,the photosynthetic rate of remnant leaves of multi-spike cultivar YM49 increase a lot and its grain weight fall down even more obviously.More substance stored in node of large-spike cultivar S2001 is consumed, node weight of per unit length decrease significantly,content of protein and wet gluten decrease a lot.