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Efficient crossbreeding method of walnut

A technology of hybrid breeding and walnut, applied in the field of agricultural bioengineering, can solve the problems that hybrid breeding technology has not been reported yet

Inactive Publication Date: 2010-09-29
杜生栋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

People eagerly hope that there will be new walnut varieties to come out, but the cross-breeding technology for obtaining new walnut varieties has not been reported yet.

Method used

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Embodiment Construction

[0012] The present invention can be carried out according to the following specific technical solutions:

[0013] a. to collect pollen

[0014] Walnut is a monoecious plant with different flowers, and the male parent and the female parent should be selected for hybridization with a large regional distance and a large gap in defects. For example, Xinjiang No. 2 is selected as the male parent, and Japan Xiangling is used as the female parent. When it is big but immature, use a small bag to cover the male flower of the male parent and the female flower of the female parent together with the young fruit respectively to prevent other pollen from entering the bag;

[0015] b. Artificial hybridization

[0016] Untie the bag when the male flower reveals its pollen, collect the pollen, then bounce it down on the pistil, and immediately bag it to prevent other pollen from entering the bag;

[0017] c. Hybrid fruit management and collection

[0018] Prevent and control diseases and in...

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Abstract

The invention discloses an efficient crossbreeding method of walnut, which is simple and efficient. The new variety of the hybrid walnut has short period of first fruiting, high output, thin seedcase and full nut, and fills the gap of unfavorable cultivation of walnut varieties in large area at present. The technical scheme of the invention comprises the steps of: collecting the pollen, artificial crossing, managing and collecting the hybrid walnut, seeding the hybrid walnut and managing the seedling, early selecting the hybrid seedling, selecting firstly and selecting again. The period of first fruiting of the hybrid walnut tree according to the invention is shortened to 1 to 2 years from 7 to 8 years, and the fruits have uniform size, thin seedcase, and full and white nut. The method reaches the advanced international standard.

Description

technical field [0001] The invention relates to a hybrid breeding method, in particular to a walnut high-efficiency hybrid breeding method, belonging to the technical field of agricultural bioengineering. Background technique [0002] Walnut is a kind of dry fruit with rich nutrition and high economic value. The cultivation and management of walnut is extensive, and the fruit is resistant to storage and easy to transport. Efficacy, and contains more than 20 kinds of amino acids necessary for human body, which is beneficial to human health, and is widely used in the field of health food therapy. Walnut trees are both economic forests and timber forests. Walnut trees are hard and smooth, and can be used to make high-grade wooden furniture. However, due to the long initial fruit-bearing period of the current walnut varieties, generally needing 6 to 8 years, and the low yield, it has seriously hindered the large-scale cultivation of walnuts. People eagerly hope that there will...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00A01H1/02
Inventor 杜生栋
Owner 杜生栋
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