Method for cultivating wheat new variety by distant graft and asexual hybridization

A technology of asexual hybridization and new varieties, applied in the direction of botany equipment and methods, applications, plant gene improvement, etc., can solve the problems of wheat disease resistance, yield per mu, and quality without too many breakthrough changes and improvements, and achieve resistance Unique lodging characteristics, large leaf area, large grain effect

Inactive Publication Date: 2006-05-03
商丘市国佳农业科技有限公司
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  • Summary
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are not many breakthrough changes and improvements in the disease resistance, yield and quality of wheat
Using sweet potato as the rootstock and wheat

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0004] The technical method adopted in the present invention is: cultivating and developing sturdy sweet potato seedlings (about 50 centimeters long) as rootstocks; cultivating new-born wheat (18 Henan wheat plants with a height of 3-6 centimeters) as scions; after the scions are completely removed from the roots, they are grafted on the rootstocks of the proximal stem. The scion was cultivated to survive and it was confirmed that the scion had no spontaneous root formation in the early stage of growth (plant height 30 cm, before tillering). Remove excess tillers, leave 2-3 main tillers and cultivate them to bloom naturally and bear fruit. The scion seeds are harvested and sown naturally, the strains with obvious trait variation are sorted from the growing population, and the harvested seeds are sown again until the selected traits are stably inherited.

[0005] The sweet potato grafted wheat plants should be overwintered in the greenhouse, and the scion seeds are harvested a...

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PUM

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Abstract

The invention relates to a method for asexual distant crossing to breed a new wheat strain with the grafting of Convolvulaceae sweet potato and forage wheat. Taking the strong sweet potato sprout of hostile environment induced inversion resistant and variation breeding as stock; new growing wheat as scion; grafting the scion after root removal to the stem near the soil of the stock. Making sure that the scion survives and no self-growing root generates in the early stage of grafting. Removing the excess tillers, leaving the main tillers and breeding them for natural blooming and fruit yielding. Receiving the grafting seeds and sowing naturally, choosing plants with dominant feature variation from the group of well growing, receiving seeds and sowing again until the chosen feature inherits stably.

Description

technical field [0001] The invention relates to a new gramineous wheat variety cultivated by grafting asexual distant hybridization of Convolvulaceae sweet potato and Gramineae wheat. Distant grafting variation is the resistance variation induced by grafting growth stress. Background technique [0002] At present, the known wheat breeding method is selected by sexual hybridization within the genus, although many new varieties are produced every year. However, there are not many breakthrough changes and improvements in the disease resistance, yield and quality of wheat. The method of cultivating new wheat varieties through cross-family distant grafting and asexual hybridization with sweet potato as rootstock and wheat as scion has not been reported at home and abroad. Contents of the invention [0003] The invention uses sweet potato as a stock and wheat as a scion to select and breed new varieties of high-quality, high-yield and disease-resistant wheat through cross-fami...

Claims

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Application Information

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IPC IPC(8): A01H1/02
Inventor 孟昭璜
Owner 商丘市国佳农业科技有限公司
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