Technical method for high-efficient breeding of wheat

Abstract

The invention relates to a technical method for high-efficient breeding of wheat, which comprises low-temperature vernalization, south breeding and generation adding, shuttle breeding, multi-point combined identification and the like. In particular, the technical method comprises the following steps of: treating the seeds obtained after the strong-winterness wheat blossoms for 15 to 20 days by hydrogen peroxide, washing the seeds by pure water, sprouting the seeds at the room temperature, putting the seedlings growing to 1 to 2 centimeters in an artificial weather room, performing the green-body vernalization of the seedlings for 45 and 50 days at a temperature of between 3 and 5 DEG C and a relative humidity of 70 percent and under a light intensity of 15001x; hardening the seedlings of the winter wheat undergoing the vernalization treatment at the normal temperature for 1 to 2 days, and transporting the seedlings to Yuanmou in Yunnan province; and preparing a rice seedling bed, watering and soaking the rice seedling bed, discharging visible water before transplanting, and transplanting the seedlings in mud at dusk. The disease resistance, stress resistance, adaptability and yieldstability selections of breeding materials are carried out by shuttle breeding and multi-point combined identification and the like. The technical method for breeding provides rich reserve of raw materials for the rapid improvement of the wheat variety, and also lays a sold foundation for demonstration and popularization of a new variety in large areas.

Description

technical field [0001] The invention belongs to the technical field of crop selection and breeding, in particular to a method for cultivating high-quality, high-yield and multi-resistant new wheat varieties by adopting high-efficiency wheat breeding technology. Background technique: [0002] Most countries in the world regard the breeding of new varieties and the industrialization of seeds as the focus of the development of the wheat industry. According to changes in market demand, developed countries always put the breeding of high-quality special varieties at the top of the list to ensure their advantages in the international market , and strive to make new breakthroughs in breeding materials, methods and theoretical research. The scale of breeding is expanding day by day, the conditions of the greenhouse are good, the mechanization of field operations, off-site multigeneration, shuttle breeding, multi-point identification and early generation quality testing have been wid...

AI Technical Summary

Problems solved by technology

The disease resistance (especially powdery mildew) of the main plant species is not strong enough, resulting in the application of a large amount of pesticides, and the utilization rate of fertilizer and water needs to be improved

Effective breeding methods such as shuttle breeding and multi-point identification have not been really implemented in China, and the adaptability of the bred varieties is poor

Generally speaking, the breeding cycle of winter wheat is long, and the selection accuracy is not high

In terms of organizational form, breeding units are fighting on their own, and different disciplines lack effective collaboration, resulting in low breeding efficiency and weak overall competitiveness

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