A three-stage in-situ breeding method for apple rootstocks resistant to heavy cropping

Abstract

The invention relates to an in-situ breeding method for a three-phase breeding apple continuous-cropping-resistant stock. The method is capable of using the undeveloped land of apple continuous-cropping garden, performing the in-situ resistance breeding to various apple stock seedlings, verifying and obtaining the resistance stock material after preliminary screening. The method is used for improving the specificity and breeding efficiency of the continuous-cropping-resistant breeding, and greatly shortening the time cycle of the continuous-cropping-resistant stock breeding. The continuous-cropping-resistant capacity of the obtained plant material is strong, and the characters are stable. In addition, the method is suitable for performing the resistance stock screening in other fruit tree species and soil types (such as, breeding peach stock by using the undeveloped soil of the aged peach garden, performing the drought resisting stock breeding by using the drought soil, and performing the nematode-resistant stock breeding by using the soil of the aged grape garden), and provides the more effective apple continuous-cropping-resistant stock type for the production.

Description

[0001] (1) Technical field [0002] The invention relates to a three-stage in-situ breeding method for breeding apple rootstocks resistant to heavy cropping, belonging to the field of fruit tree breeding. [0003] (2) Background technology [0004] At present, most of the apple orchards produced in my country were built in the 1980s and 1990s, and now they have gradually entered the aging period. However, many apple counties lack enough land to build new apple orchards, and many places have to replant apples. The unresolved continuous cropping problem Obstacles are bound to bring serious economic losses to fruit farmers. [0005] At present, the traditional methods and measures to overcome the obstacle of repeated cropping in production are time-consuming, laborious, pollute the environment, waste resources, and it is difficult to improve the losses caused by the obstacle of repeated cropping on a large scale. If the targeted breeding of resistant rootstocks is to utilize the r...

AI Technical Summary

Problems solved by technology

[0004] At present, most of the apple orchards produced in my country were built in the 1980s and 1990s, and now they have gradually entered the aging period. However, many apple counties lack enough land to build new apple orchards, and many places have to replant apples. The unresolved continuous cropping problem Obstacles are bound to bring serious economic losses to fruit farmers

[0005] At present, the traditional methods and measures to overcome the obstacles of repeated cropping in production are time-consuming, laborious, pollute the environment, waste resources, and it is difficult to improve the losses caused by the obstacles of repeated cropping on a large scale.

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