Breeding method for clonal variety DH32-29 of Eucalyptus urophydis

A clone, Eucalyptus grandis technology, applied in the directions of botanical equipment and methods, plant genetic improvement, cultivation, etc., can solve the problems of insufficient greening in eucalyptus planting areas, short cutting cycle, soil erosion, etc., achieving neat forest appearance and obvious economic benefits. , the effect of large accumulation

Inactive Publication Date: 2015-03-11
广西壮族自治区国有东门林场
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Problems solved by technology

[0003] At present, there are many eucalyptus species in my country, such as Eucalyptus urophylla, Eucalyptus grandis, Eucalyptus blue, Eucalyptus durnen, Eucalyptus durn, etc., which can produce a variety of industrial woods; China has entered an ecological society, and the sustainable development strategy has become more and more popular in the world. The more countries and the public pay attention to and recognize it, the sustainable development strategy o

Method used

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Embodiment Construction

[0025] The inventor has carried out the practice and popularization of the selection and propagation of new eucalyptus varieties in Guangxi Dongmen Forest Farm, Guangxi Bobai Forest Farm, Guangxi State-run Gaofeng Forest Farm, Guangxi State-owned Paiyangshan Forest Farm, and Guangxi State-owned Qipo Forest Farm in five areas. The detailed process is as follows:

[0026] (1) Female parent: Introduce a batch of 8 Indonesian provenances, afforestation of 15 mu in the rainy season from March to April of that year, establish the experimental E24 Eucalyptus urophylla provenance test, investigate the survival rate and complete the replanting within one week after the afforestation;

[0027] Male parents: A batch of 20 Australian provenances were introduced, and 15 mu of forests were planted in the rainy season from March to April of that year. Experimental E9 tree species and fertilization tests were established. The survival rate was investigated within one week after planting and re...

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Abstract

The invention discloses a breeding method for the clonal variety DH32-29 of Eucalyptus urophydis. The method comprises the following steps: using Eucalyptus urophylla U16 as a female parent and Eucalyptus grandis G46 as a male parent; and then carrying out emasculation and bagging, pollen collection, artificial pollination, removal of bags, seed collection and sowing, and breeding so as to obtain the clonal variety DH32-29 of Eucalyptus urophydis with the characteristics of consistent trait expression, stable inheritance and trait segregation exemption. The variety is characterized in that the seedling of the variety has small, pointed and long leaves, green terminal buds, inconspicuous leaf veins, red-like seedling stems and coarse barks at the lower end of the trunk in a seedling stage; the variety has the characteristics of straight trunk form, neat forest form, small branches, capabilities of preventing diseases and pests, great annual stand volume, obvious economic benefits and applicability to large-area plantation.

Description

technical field [0001] The invention relates to the field of plant breeding, in particular to a breeding method for the clone DH32-29 variety of Eucalyptus urophylla. Background technique [0002] eucalyptus( Eucalyptus ), also known as eucalyptus, originated in Australia and was introduced into my country in 1890. Guangxi has developed eucalyptus planting for more than 100 years. After the 1980s, a large number of eucalyptus species and provenances were introduced and nearly A large number of scientific and technological achievements have been obtained through hundreds of researches; at the same time, eucalyptus has brought rich economic benefits. According to statistics, 15 achievements such as the introduction and improvement of eucalyptus in Dongmen and the research on high-yield cultivation technology have won the State Forestry Department and the Autonomous Region Progress Award. The economic benefits amounted to more than 10 billion yuan. The planting area of ​​eucaly...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01G17/00
Inventor 项东云王国祥杨建林陈东林韦善华李宏伟周国福卢祖俊唐再生兰宝国何贵整郑白刘德杰申文辉吴兵兰俊沈云吴永富韦炬莫启平李琼初李海佳何三中周维张丽君欧长秀梁金莲黄芳梅张寿德
Owner 广西壮族自治区国有东门林场
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