High-yield wheat variety breeding method

Abstract

The invention discloses a high-yield wheat variety breeding method, which belongs to the technical field of crop breeding, and can guarantee that the number of grains per spike is more than 50. According to the technical scheme, the high-yield wheat variety breeding method comprises the following steps: (1) selecting mutant seeds, which are named as F1, with the spike length of 14cm-16cm and the number of grains of each spike of 60-80, and performing dibble seeding on large and full seeds in the autumn of the year; (2) harvesting clusters of F1 keeping 60-80 grains in the next year, and performing dibble seeding on large and full seeds in the autumn of the year; (3) repeating the step (2) twice or three times; (4) after the secondary or third dibble seeding is performed like the step (3), taking out male flowers from the robust clusters of F1, performing bagging and closing, pollinating the clusters of F1 by the male flowers of Ji wheat #22, finally closing the clusters which are named as F2; and (5) harvesting F2 in the next year to obtain the high-yield wheat variety.

Description

technical field [0001] The invention relates to a breeding method for high-yielding wheat varieties, belonging to the technical field of crop breeding. Background technique [0002] my country is a traditional large agricultural country. In recent years, due to the correct principles and policies of reform and opening up, the rapid development of transportation, enterprises, cultural entertainment, urban real estate development and tourism, the amount of land occupation is quite large. To increase the total amount of grain, the only way to increase the total amount of grain is to work hard on breeding and increase the yield per unit area. Wheat, in particular, is the most nutritious fine grain crop among the only crops. How to increase the total yield of wheat, the number of spikes and grains is the basic factor to determine the yield of wheat. In the past, the large ear varieties of wheat had few ear length rows and few grains per ear. The number of grain rows was mainly ...

AI Technical Summary

Problems solved by technology

However, the number of grains per panicle of the existing varieties with high ear height is less than 40 grains. Although the low stalk is resistant to lodging, the potential for increasing production is not large.