Method for increasing southern wheat yield per unit area

Abstract

The invention relates to a method for increasing southern wheat yield per unit area. The method changes spring wheat varieties generally applied in the southern wheat areas at present into winter wheat varieties. A cultivation method for the winter wheat varieties suitable for planting in the south comprises the steps of selecting northern winter wheat as female parents, selecting southern spring wheat as male parents; sowing the northern winter wheat 30-60 days in advance in areas south of northern latitude 33 degrees, China, so as to make flowering period of the northern winter wheat encounter that of the southern spring wheat; detasselling, hybridizing with the southern spring wheat; and selecting winter wheat novel variety form the hybrid generations. The selected winter wheat novel variety is suitable for growing in areas south of the of northern latitude 33 degrees, China; and the yield per unit area is increased by one time or more than one time than that of the southern spring wheat.

Description

technical field [0001] The invention belongs to the technical field of crop planting. In particular, it relates to methods of growing wheat. Background technique [0002] With the successful breeding of hybrid rice and the increase of wheat production in the north, China's grain production basically meets the food demand. The area of ​​wheat production in South China has been greatly reduced. The area of ​​wheat in the Yangtze River Basin has decreased from 133 million mu in the 1930s to 75 million mu at present. In South China, there is basically no wheat growing. Nevertheless, wheat remains an important crop in southern China. [0003] The spring varieties of wheat planted in southern China have weak tillering ability, short growth period, poor drought tolerance and cold resistance, and their yields are generally more than 50% lower than those of winter varieties. If spring varieties are planted in the northern wheat region, due to the lower temperature at the tillering...

AI Technical Summary

Problems solved by technology

In addition, on the one hand, due to the lack of water in the north, China has to spend huge sums of money to build the South-to-North Water Diversion Project, and on the other hand, it has to transport a large amount of wheat from the north to the south, which is economically and ecologically difficult. is very unreasonable

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