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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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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 as the scion, the method of cultivating new wheat varieties through cross-family distant grafting and asexual hybridization has not been reported at home and abroad.

Method used

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Embodiment Construction

[0004] The technical method that the present invention adopts is: cultivate the sweet potato seedling (about 50 centimeters of seedling length) of development stoutly as rootstock; Cultivate newborn wheat (Yumai 18 plant height 3-6 centimeters) as scion; Scion is grafted on rootstock after removing root completely near-ground stem. Cultivate the scion to survive and confirm that the initial stage of scion growth (30 centimeters of plant height, before beginning tillering) does not have self-rooting formation. Remove redundant tillers, leave 2-3 main tillers and cultivate them to bloom and bear fruit naturally. Harvest scion seeds and sow them naturally, sort out the plants with obvious trait variation from the well-grown population, harvest the seeds and sow again until the selected traits are stably inherited.

[0005] Sweet potato grafted wheat plants need to survive the winter in the greenhouse, harvest the scion seeds and sow them immediately, and reproduce in spring and ...

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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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