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Triple cross wheat breeding technical method

A technology of hybrid wheat and hybrid breeding, applied in botany equipment and methods, horticulture, application, etc., can solve the problems of low efficiency of heterosis breeding and ineffective sharing of parental resources and information

Active Publication Date: 2014-06-25
XINJIANG ACADEMY OF AGRI & RECLAMATION SCI
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Problems solved by technology

[0007] The purpose of the present invention is to propose a three-line hybrid wheat breeding technology method to solve the problem that parental resources and information cannot be effectively shared between the two breeding methods, resulting in low efficiency of heterosis breeding

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[0023] The present invention will be described in further detail below in conjunction with specific examples, but not as a limitation of the present invention.

[0024] Such as figure 1 Shown is a three-line hybrid wheat breeding technology method of an embodiment of the present invention. Including: germplasm resources and parent nursery; conventional hybrid breeding; hybrid parent selection; heterosis testing and selection; hybrid breeding and production performance comparison test;

[0025] (1) Germplasm resources and parent nursery: The parent nursery includes abundant wheat variety materials collected from home and abroad; germplasm resources and parent nursery provide raw materials for conventional hybrid breeding and hybrid parent selection;

[0026] (2) Conventional cross-breeding: The single-cross F1 generation of conventional cross-breeding enters the production performance comparison test for heterosis yield measurement, selects the female parent of the strong domi...

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Abstract

The invention discloses a triple cross wheat breeding technical method which is a cross wheat breeding technical method tightly combining a conventional cross breeding technology and a hybrid vigor breeding technology. Specifically, the technical method is organically composed of six modules, namely a genetic resource and parent garden module, a cross breed parent breeding module, a hybrid vigor testing and selecting module, a cross breed breeding module, a conventional cross breeding module and a production performance comparison test module. The relations among the modules and the relations of the working procedures in the modules are clear. The triple cross wheat breeding technical method solves the problem that due to the fact that breeding resources and information between two breeding methods cannot be effectively shared, the hybrid vigor breeding efficiency is not high.

Description

technical field [0001] The invention relates to the technical field of wheat breeding, in particular to a technical method for three-line hybrid wheat breeding. Background technique [0002] Wheat is the food crop with the largest total output and high nutritional value in the world. With the further increase of the population, the per capita arable land area is decreasing year by year, and the food problem is one of the most important problems we are currently facing. Heterosis is a common phenomenon in the biological world. At present, using wheat heterosis is one of the main measures to increase wheat yield. There are three main ways for wheat to utilize heterosis: both "three-line method", "two-line method" and "chemical male killing method". The present invention is only aimed at the first two methods. [0003] The three-line method refers to the three-line matching of the sterile line, the maintainer line and the restorer line. The sterile line is the female parent,...

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Application Information

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IPC IPC(8): A01G1/06
Inventor 田笑明聂迎彬穆培源韩新年桑伟徐红军崔凤娟刘小芳相吉山
Owner XINJIANG ACADEMY OF AGRI & RECLAMATION SCI
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