CN1415186A

CN1415186A - Method of seed selection for a kind of fast growing poplar

Info

Publication number: CN1415186A
Application number: CN 02142317
Authority: CN
Inventors: 和建强
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-09-15
Filing date: 2002-09-15
Publication date: 2003-05-07

Abstract

A method for selectively breeding fast-growing poplar includes the first bud grafting between wild white poplar and northern-type poplar, the second bud grafting between same poplars, mutually grafting between their survival saplings, direct cuttaging, and grafting with the new saplings. Its advantages are high growth speed, high trank, high wood quality, and high resistance to cold and drought.

Description

A kind of selection of fast growth poplar

Technical field

The invention belongs to a kind of selection of new varieties of poplar, relate in particular to a kind of method that adopts artificial polynary cultivating method cultivation fast growth poplar new varieties.

Background technology

World today's protection environment; the deterioration of the ecological environment of preventing artificial destruction to cause; enforcement sustainable development strategy; become the problem of international community's economic development; when China implements the Midwest development strategy; also environmental protection; the ecology recovering environment; implement important topic and the object of planning of sustainable development strategy as the most important thing; and a series of corresponding preferential policies have been put into effect; encourage the central and west regions people in economic development, to do well to concede the land to forestry; prevent erosion, to reach the ecology recovering environment; anti-desertization; further enlarge the purpose of implementing sustainable development.In implementing the process of conceding the land to forestry, preventing to desertify, traditional plant variety has been introduced arbor kinds such as Sha Lanyang in recent years based on shrubs such as diversiform-leaved poplar, Semen Fructus Hippophae, but because these kind growths are slow, material is bad, resistance is poor, so concerning the peasant, economic benefit is not good enough.

Summary of the invention

The objective of the invention is to overcome the deficiencies in the prior art and a kind of wild good willow variant that utilizes is provided, purificate and rejuvenate, artificial spray breeds, make it keep fine quality, improve resistance to insects, resistance, growth is fast, and material obviously is better than the selection of the fast growth poplar of Sha Lanyang and the living poplar kind of other speed.

The object of the present invention is achieved like this: the lifes in 5 years of selecting Shennongjia area, Hubei Province for use, trunk is perfectly straight, crown diameter is more than 4 meters, willow catkins flying in the air not, gleaning, the height of tree is more than 30 meters, wild white poplar and the natural hybrization wild variation seeds of Cathay poplar of the diameter of a cross-section of a tree trunk 1.3 meters above the ground more than 38 centimetres are maternal, select this female parent for use annual bright, carry out the bud grafting first time with northern type Populus X canadensis cv., also select this female parent simultaneously for use annual bright, carry out the bud grafting second time with American-European black poplar, the seedling of above-mentioned two kinds of bud grafting successes was adopted in the bud grafting success in back 1 year, carry out kryptoblast in July and exchange grafting, the 3rd year with the direct cuttage of two kinds of branches behind grafting survival plantation, carry out grafting once more with newly-generated Cheng Miao then and be combined into one, become the new varieties of cultivation after surviving.

The present invention is through diversification seed selection grafting repeatedly, new varieties of poplar after cultivating successfully, tall and straight tall and big, the cold-resistant drought resisting of natural variation strain, the characteristic that material is good had both been kept, have fast, the smooth no hollow advantage of skin of Sha Lanyang growth again, and American-European black poplar leaf is big, that speed is given birth to characteristics have embodied.

Main economic and technical indices:

1, speed is given birth to technical indicator: 15 months diameters of a cross-section of a tree trunk 1.3 meters above the ground " 12cm, leading thread " 15cm, vegetative period with diameter of a cross-section of a tree trunk 1.3 meters above the ground 30cm for becoming a useful person, high liquid manure area need 5 years, arid area 8 years, fast natural disposition is day third of the twelve Earthly Branches 1.6 times of poplar, is 8 times of Sha Lanyang;

2, material is good, is white in color, and fineness is good, and is pliable and tough strong, resistance to insects, strong stress resistance, and growth is fast, and material obviously is better than Sha Lanyang and the living poplar kind of other speed.

3, paste-forming properties is good can be good, and former pulp brightness height, thick slag are few, are the good materials of making high-grade paper and plywood.

Embodiment

Embodiment: the lifes in 5 years of selecting Shennongjia area, Hubei Province for use, trunk is perfectly straight, crown diameter is more than 4 meters, willow catkins flying in the air not, gleaning, the height of tree is more than 30 meters, wild white poplar and the natural hybrization wild variation seeds of Cathay poplar of the diameter of a cross-section of a tree trunk 1.3 meters above the ground more than 38 centimetres are maternal, select this female parent for use annual bright, selecting northern type Populus X canadensis cv. for use is that male parent is carried out the bud grafting first time, also select this female parent simultaneously for use annual bright, carry out the bud grafting second time with American-European black poplar again as male parent, the seedling of above-mentioned two kinds of bud grafting successes was adopted in the bud grafting success in back 1 year, carry out kryptoblast in July and exchange grafting, the 3rd year with the direct cuttage of two kinds of branches behind grafting survival plantation, branch is put into water immersion 12 hours before the cuttage, then in 0.05% root element solution, can carry out the cuttage plantation, the 4th year, survive seedling with newly-generated two kinds and carry out grafting and be combined into one, become the new varieties of cultivation after surviving.Whole diversification cultivating process is pyramid, the new varieties of place, pinnacle of a pagoda for cultivating.

Claims

1, a kind of selection of fast growth poplar, it is characterized in that: the lifes in 5 years of selecting Shennongjia area, Hubei Province for use, trunk is perfectly straight, crown diameter is more than 4 meters, willow catkins flying in the air not, gleaning, the height of tree is more than 30 meters, wild white poplar and the natural hybrization wild variation seeds of Cathay poplar of the diameter of a cross-section of a tree trunk 1.3 meters above the ground more than 38 centimetres are maternal, select this female parent for use annual bright, carry out the bud grafting first time with northern type Populus X canadensis cv., also select this female parent simultaneously for use annual bright, carry out the bud grafting second time with American-European black poplar, the seedling of above-mentioned two kinds of bud grafting successes was adopted in the bud grafting success in back 1 year, carry out kryptoblast in July and exchange grafting, the 3rd year with the direct cuttage of two kinds of branches behind grafting survival plantation, carry out grafting once more with newly-generated Cheng Miao then and be combined into one, become the new varieties of cultivation after surviving.