Method for increasing synthesis rate of starch of wheat grain

Abstract

The invention relates to a method for increasing synthesis rate of starch of wheat grain. The method comprises the step of evenly spraying a certain concentration of mixed solution of salicylic acid and Tween 40 to wheat blade backs on 15-20 days after wheat anthesis at nightfall in a sunny day, wherein the use level of the mixture solution is 30-40Kg / 666.7m<2>. The synthesis rate of the starch of the wheat grain treated by the method disclosed by the invention can be increased by 16.1-26.5 percent, the thousand seed weight can be increased by 3-6g, and the yield is increased by 20-40Kg / 666.7m<2>.

Description

technical field

[0001] The invention belongs to the field of agricultural applied biotechnology, and in particular relates to a method for improving the synthesis rate of wheat grain starch. Background technique

[0002] Wheat is one of the most important food crops in the world. Under the current situation of increasing population and decreasing arable land area, increasing the yield of wheat per unit area is the most important way to ensure food supply. With the continuous improvement of wheat yield level, among the three elements of wheat yield (number of ears per unit area, number of grains per ear, and thousand-grain weight), thousand-grain weight has become the limiting factor for the yield of most wheat varieties in major wheat producing areas in my country. Starch accounts for about 70% of the weight of wheat grains and is the most important component of wheat grains. Therefore, increasing the thousand-grain weight of wheat mainly lies in improving the synthesis and ...