Artificial pollination method of eucalyptus

A technology of artificial pollination and eucalyptus, which is applied in the direction of botanical equipment and methods, application, plant gene improvement, etc., can solve the problems of pollen waste of male parent trees, unstable fruit setting rate and pollination effect, cumbersome working procedures, etc., and achieve improvement The effect of fruit setting rate, saving pollen consumption and convenient operation

Inactive Publication Date: 2016-07-20
RES INST OF TROPICAL FORESTRY CHINESE ACAD OF FORESTRY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional artificial pollination method of eucalyptus generally adopts cumbersome working procedures, the

Method used

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  • Artificial pollination method of eucalyptus
  • Artificial pollination method of eucalyptus
  • Artificial pollination method of eucalyptus

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Embodiment Construction

[0019] Below in conjunction with embodiment the present invention is further described in detail.

[0020] A kind of eucalyptus artificial pollination method is characterized in that: comprises the following steps:

[0021] (1) Mother tree selection: select a mother tree with excellent genetic quality and high combining ability, observe the flowering phenology of the mother tree before pollination, accurately grasp its flowering period and flowering amount, and carry out artificial pollination in due course;

[0022] (2) Detasseling: Choose flower branches with moderate flower volume and maturity, with at least 20 flower buds. Small scissors remove stamens to prevent selfing;

[0023] (3) Bagging: In order to prevent the pollution of non-target pollen, the pollinated branches should be isolated; choose air-permeable and light-transmitting parchment to make artificial pollination isolation paper bags, and there is a transparent observation window in the middle of the paper bag...

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Abstract

The invention discloses an artificial pollination method of eucalyptus. The artificial pollination method comprises the following steps: (1) selecting seed trees: selecting the seed trees with excellent heredity quality and high combining ability; (2) performing castration: selecting flower branches with moderate flowering amount and moderate maturity, wherein the quantities of buds is 20 or above, and the moderate maturity means opercula is light white and soon drops optimally; (3) performing bagging: performing isolation on branches to be subjected to pollination so as to prevent pollution of non-target, pollen; (4) performing pollination: mastering good pollination opportunity during the pollination, when top ends of gynoecium stigmas expand and secrete certain mucus, performing pollination, wherein the optimal pollination period is the time 3-5 days after castration, and during the pollination operation, performing pollination from bottom to top so as to avoid the condition that the stigmas are damaged after being hit. Compared with the prior art, the artificial pollination method disclosed by the invention has the advantages that artificial pollination is an important means for performing hybridization breeding and cultivating new species of the eucalyptus; according to the artificial pollination method disclosed by the invention, the operation is convenient, the dosage of the pollen can be saved, the success rate of the pollination is increased, the fruit setting rate is increased, and the final effective hybrid seed number is increased.

Description

technical field [0001] The invention relates to an artificial pollination method, in particular to an artificial pollination method for eucalyptus. Background technique [0002] Eucalyptus is the general name of Eucalyptus plants of Myrtaceae (Myrtaceae). It is native to Australia and Indonesia islands. It is widely planted in various countries. The cultivated area of ​​eucalyptus in my country has reached 6 million hectares. It is an important industrial timber species in the southern region and has made important contributions to the production of commercial timber in our country. Eucalyptus urophylla (Eucalyptus urophylla S.T.Blake) is the most important species of eucalyptus introduced in my country, and the cultivation area of ​​its pure species and its hybrid varieties as parents accounts for more than 85% of the national eucalyptus cultivation area. Therefore, the present invention mainly solves the problem of Eucalyptus urophylla. Provide guarantee for the artificia...

Claims

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Application Information

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IPC IPC(8): A01H1/02
CPCA01H1/02
Inventor 陆钊华徐建民吴世军李光友张霞
Owner RES INST OF TROPICAL FORESTRY CHINESE ACAD OF FORESTRY
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