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Breeding method for clonal DH32-28 variety of Eucalyptus urophylla*E.grandis

A technology of clonal and giant eucalyptus, applied in the direction of botany equipment and methods, application, plant genetic improvement, etc., can solve the problems of water and soil erosion, insufficient greening of eucalyptus planting areas, short felling cycle, etc., and achieve small branches and neat forest appearance , Obvious effect of economic benefit

Inactive Publication Date: 2015-01-28
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 of my country's forestry is also guiding the development of modern forestry in countries around the world. However, due to the influence of eucalyptus species, although many species of eucalyptus in my country have strong growth ability, due to the short felling cycle, Immediate eucalyptus has strong regeneration ability. Due to successive years of felling and planting rotation, many eucalyptus planting areas have insufficient greening and serious soil erosion

Method used

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  • Breeding method for clonal DH32-28 variety of Eucalyptus urophylla*E.grandis
  • Breeding method for clonal DH32-28 variety of Eucalyptus urophylla*E.grandis
  • Breeding method for clonal DH32-28 variety of Eucalyptus urophylla*E.grandis

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Embodiment Construction

[0023] The inventor has carried out the practice and popularization work of the selection and breeding of new eucalyptus varieties in Guangxi Dongmen Forest Farm, Guangxi Bobai Forest Farm, Guangxi State-run Gaofeng Forest Farm, Guangxi State-owned Paiyang Mountain Forest Farm, and Guangxi State-owned Qipo Forest Farm. The detailed process is as follows:

[0024] (1) Female parent: Introduce a batch of 9 Indonesian provenances, afforestation of 32 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;

[0025] Male parents: A batch of 17 Australian provenances were introduced, and 102 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 and replanted within one week after plantin...

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Abstract

The invention discloses a breeding method for clonal DH32-28 variety of Eucalyptus urophylla*E.grandis. The method comprises the following steps: firstly, taking Eucalyptus urophylla U16 serving as a female parent and Eucalyptus grandis G46 serving as a male parent as parents; performing emasculation and bagging, pollen collection, hand pollination, cap bag removal, seed collecting and sowing and breeding to realize consistent character expression and stable inheritance. The clonal DH32-28 variety of Eucalyptus urophylla*E.grandis which is not subjected to segregation of character has the variety characteristics of straight stem shapes, ordered forest form, small branches, high annual average amount of growing stock and obvious economic benefit, is free of plant diseases and insect pests and suitable for large-scale cultivation promotion.

Description

technical field [0001] The invention relates to the field of plant breeding, in particular to a breeding method for the clone DH32-28 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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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04
Inventor 项东云韦炬莫启平王国祥张寿德梁郁端韦善华杨建林郑白李琼初李海佳何贵整兰宝国周维何三中黄芳梅陈东林唐再生刘德杰周国福申文辉沈云吴永富张丽君欧长秀
Owner 广西壮族自治区国有东门林场
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