Seed selection method of E. urophylla*E. Grandis clone DH32-13

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

Inactive Publication Date: 2015-01-21
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

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  • Seed selection method of E. urophylla*E. Grandis clone DH32-13
  • Seed selection method of E. urophylla*E. Grandis clone DH32-13
  • Seed selection method of E. urophylla*E. Grandis clone DH32-13

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Embodiment Construction

[0023] The inventors have carried out the practice and promotion of the selection and propagation of new eucalyptus species in five areas: Guangxi Dongmen Forest Farm, Guangxi Bobai Forest Farm, Guangxi State-run Gaofeng Forest Farm, Guangxi State-owned Paiyangshan Forest Farm, and Guangxi State-run Qipo Forest Farm. The detailed process is as follows:

[0024] (1) Female parent: A batch of 8 provenances from Indonesia were introduced, 67 mu were planted in the rainy season from March to April 1985, and the E24 Eucalyptus urophylla provenance test was established, and the survival rate was investigated within one week after afforestation and replanting was completed;

[0025] Male parent: A batch of 20 Australian provenances were introduced, and 55.0 mu were planted in the rainy season from March to April in 1984. The experimental E9 tree species and fertilization experiments were established. The survival rate was investigated within one week after the afforestation and the re...

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Abstract

The invention discloses a seed selection method of E. urophylla*E. Grandis clone DH32-13. The method comprises the following steps: firstly, a female parent Eucalyptus urophylla U16 and a male parent Eucalyptus grandis G46 are taken as parents, and subjected to castration, bagging, pollen collection, artificial pollination, bag removing, seed collecting, seeding and seed selection to obtain the E. urophylla*E. Grandis clone DH32-13 with consistent characters, stable inheritance and not subjected to character segregation. The E. urophylla*E. Grandis clone DH32-13 has the characteristics of straight stem form, neat forest phase, small branches, no plant diseases and insect pests, large annual average stand volume, remarkable economic benefits, and capability of being suitable for being planted in large-area regions.

Description

technical field [0001] The invention relates to the field of plant breeding, in particular to a breeding method for a clone DH32-13 variety of Eucalyptus grandis. Background technique [0002] eucalyptus( Eucalyptus ), also known as Eucalyptus, originated in Australia and was introduced to my country in 1890. The Guangxi region has developed eucalyptus planting for more than 100 years. Hundreds of studies have yielded a large number of scientific and technological achievements; at the same time, eucalyptus has brought huge economic benefits. According to statistics, 15 achievements including the introduction and improvement of Dongmen eucalyptus and the research on high-yield cultivation technology have won the Progress Award of the Ministry of Forestry and the Autonomous Region, and obtained direct Economic benefits of more than 10 billion yuan. The planting area of ​​eucalyptus is expanding year by year in Guangxi. This is because eucalyptus has the following advantages ov...

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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