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Method for promoting high and stable yield of cunninghamia lanceolata seed orchard

A technology for seeds and Chinese fir, which is applied in the genetic breeding of forest trees, the construction of forest tree seed gardens and the fields of high and stable yields, can solve the negative impact of seed garden operation, the problem of seed garden yield has not been solved, and affect the development process of Chinese fir seed gardens. Popularization and other issues to achieve the effect of increasing seed yield

Active Publication Date: 2016-09-07
乐昌市龙山林场
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AI Technical Summary

Problems solved by technology

[0010] At present, Chinese fir has entered the construction of the third generation of seed orchards, but the problem of seed orchard output has not been resolved
Seriously affect the development process of Chinese fir seed garden and the promotion and popularization of fine varieties, and also bring negative impact on the operation of the seed garden itself

Method used

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  • Method for promoting high and stable yield of cunninghamia lanceolata seed orchard
  • Method for promoting high and stable yield of cunninghamia lanceolata seed orchard
  • Method for promoting high and stable yield of cunninghamia lanceolata seed orchard

Examples

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example 1

[0026] Example 1: Chinese fir selected high-efficiency seed garden

[0027] 1. Seed garden design:

[0028] The establishment site of the seed orchard is located in the Jinji Reservoir Work Area of ​​Longshan Forest Farm, Lechang City, Guangdong Province. The anvil was fixed in 2009 and grafted in the winter of 2010-2012. The construction area is 90 mu; Arrangement, increase and reduce the intensity of inbreeding, and use the exclusivity of the parents during the flowering period to solve the problem of inbreeding.

[0029] 2. Selection and determination of selected parent materials:

[0030] A. In 1992, a total of 153 parental materials of excellent hybrid combinations, excellent provenances, and excellent clones were selected from the test forests distributed by Guangdong Province and the National Chinese Fir Cooperative Group to establish a second-generation seed garden;

[0031] B. After years of determination of seed setting, the "dual indicators" of growth and seed set...

example 2

[0060] Example 2: Chinese fir new concept monophyletic seed garden

[0061] (Table 3) In order to verify whether the configuration of the Chinese fir backbone family in Example 1 is reasonable or not, a two-acre (150 plants) single-line seed garden was established in 2000. The female parent is Longshan No. 4, and the other 6 backbone families are used as fathers. This book is used in rotation. The verification results were consistent with the parent selection results in the seed orchard, and both achieved the goal of high yield.

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Abstract

The invention discloses a method for promoting high and stable yield of a cunninghamia lanceolata seed orchard. The method comprises the steps of (1) seed orchard design, (2) parent selection and allocation, (3) directional fertilization, and (4) height-control technology. The method provided by the invention has a significant effect, and is suitable for the construction of cunninghamia lanceolata seed orchards in southern China. The method also has important reference value for the construction of forest seed orchards in China and other countries of the world.

Description

1. Technical field [0001] The invention belongs to forest tree genetic breeding in the field of biology. In particular, it involves the construction of tree seed orchards and techniques and measures for high and stable yields. 2. Background technology [0002] Forest tree seed gardens are plantations established by artificially selected excellent tree clones or offspring families (Wang Mingxiu, 1988). It is an important link in forest tree breeding. Production and multi-generation breeding (Zhong Weihua, 1993). The earliest tree clone seed garden in the world was established by the Dutch in Java in 1880; since the 1940s, Nordic countries have successively established tree seed gardens such as Scots pine, Norway spruce and larch. Since the 1950s, the United States, Canada, Japan, New Zealand and Australia have successively established tree seed gardens. Among them, the United States mainly established the southern pine clone seed orchard. By 1989, a total of 3940hm 2 Sout...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00A01C21/00
CPCA01C21/005A01G17/005
Inventor 林军何祯祥吴琼辉蓝志雄王明怀邹为民赖旭恩刘晓东陈良栢成向荣
Owner 乐昌市龙山林场
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