Method for improving cross pollination efficiency of macadimia nuts

A technology of hybrid pollination and high efficiency, applied in the direction of botany equipment and methods, application, plant gene improvement, etc., can solve the problems affecting breeding efficiency and complicated steps, and achieve the effect of optimizing the technical method system, saving labor, and simple operation

Active Publication Date: 2014-08-27
YUNNAN INST OF TROPICAL CROPS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The evaluation and screening method of hybrid progeny seedlings and progeny fruits of macadamia n

Method used

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Experimental program
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Example Embodiment

[0020] Compared with the prior art, the present invention has the following beneficial effects: (1) According to the low self-compatibility of most varieties of macadamia, the present invention can pollinate a large number of inflorescences by using the net room to meet the needs of large-scale hybrid breeding, and eliminate the need for emasculation and collection in conventional hybridization methods. Complicated procedures such as pollen and bagging can save labor and avoid damage to the natural structure of flowers; (2) The present invention is simple to operate, saves time and effort, does not damage the natural structure of flowers, and has a high success rate of hybrid pollination; (3) The invention optimizes the key steps of macadamia hybrid breeding, obtains an optimized technical method system, and improves the efficiency of macadamia hybrid breeding. Specific embodiment

[0021] The present invention will be further described in detail below in conjunction with embodim...

Example Embodiment

[0023] Example 1

[0024] A method for improving the efficiency of cross-pollination of macadamia nuts, wherein the macadamia variety D4 is the female parent, the variety HAES900 is the male parent, the female parent selects 7 plants, and the male parent selects 5 plants, including the following steps:

[0025] Step (1), set up insect-proof net: select the parent combination according to the breeding goal, set up a pollination scaffold above the parent nut tree at the initial flowering stage, and directly cover and fix the 80-mesh nylon insect-proof net on the scaffold. 0.5m anti-insect nets are piled on the ground around the trees and compacted to prevent pollinating insects from entering;

[0026] Step (2), collect pollen: When the parent tree is in full bloom, 8:00-10:00 in the morning on a sunny or cloudy day, choose the inflorescences that will open within 24 hours on the parent tree, with a size of 25×200mm , Take pollen from a test tube with a smooth inner wall of transparen...

Example Embodiment

[0031] Example 2

[0032] A method for improving the efficiency of cross-pollination of macadamia, wherein the macadamia variety HAES951 is used as the female parent, and the variety D is the male parent, and 5 plants are selected for each, including the following steps:

[0033] Step (1), set up insect-proof net: select the parent combination according to the breeding goal, set up a pollination scaffold above the parent nut tree in the initial flowering stage, and directly cover and fix the 90-mesh nylon insect-proof net on the scaffold. 0.75m anti-insect nets are piled on the ground around the trees and compacted to prevent pollination insects from entering;

[0034] Step (2), collect pollen: When the parent tree is in full bloom, 8:00-10:00 in the morning on a sunny or cloudy day, choose the inflorescences that will open within 24 hours on the parent tree, with a size of 25×200mm , Take pollen from a test tube with a smooth inner wall of transparent material, put the inflorescen...

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Abstract

The invention provides a method for improving cross pollination efficiency of macadimia nuts and belongs to the field of cross breading technologies of fruit trees. The method comprises three steps of building an insect-proof net, collecting pollen and artificially pollinating. By virtue of the method, a net chamber can be used for pollinating a large quantity of inflorescences according to the characteristics of low self-compatibility degrees of most varieties of the macadimia nuts so as to meet the requirements of large-scale cross breeding, so that the complex processes of carrying out castration, collecting the pollen and covering bags and the like in the normal hybridization method are omitted, thereby saving labor and avoiding damage to the natural structures of the flowers. The method is simple to operate, time-saving, labor-saving, free of damage to the natural structures of the flowers and high in success rate of cross pollination. By virtue of the method, the key steps for cross breading of the macadimia nuts are optimized, so that an optimized technical method system is obtained, the cross breading efficiency of the macadimia nuts is improved, and the cross breading cost of the macadimia nuts is reduced.

Description

technical field [0001] The invention belongs to the technical field of cross breeding of fruit trees, and in particular relates to a method for improving cross pollination efficiency of macadamia nuts. Background technique [0002] Macadamia spp., also known as Australian walnut, macadamia nut, etc., is a perennial evergreen tree fruit tree of the genus Macadamia F.Muell in the family Proteaceae. The edible part of the macadamia nut is the kernel, the fat content is as high as 65-83%, and it is also rich in protein, calcium, phosphorus, iron and vitamins. It is a fruit tree species with large cultivation area in my country's hot areas. But at present, my country has no self-selected varieties, and all the varieties used in production come from foreign bred varieties. Due to the difference in climate and environment, the average plant yield of most varieties is only 1 / 3 to 1 / 2 of the breeding area. Although Chinese scientific researchers have conducted more than 20 years of ...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01G1/00
Inventor 陶丽贺熙勇倪书邦陈丽兰肖晓明陈国云孔广红
Owner YUNNAN INST OF TROPICAL CROPS
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