Method for increasing fructification rate and quality of poplar branch-cut aquaculture hybridized breeding seeds

A technology of branch cutting hydroponics and hybrid breeding, applied in botany equipment and methods, planting substrates, cultivation, etc., can solve the problems of small number of fruit seeds, immaturity, and insufficient nutrition, so as to improve the seed setting rate and seed quality Good, simple method and effect

Active Publication Date: 2017-08-15
SHANDONG FOREST SCI RES INST
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Problems solved by technology

However, the biggest disadvantage of this method is that the nutrients required for the development of seeds are completely derived from the nutrients stored in the cut branches, often resulting in late fruit

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  • Method for increasing fructification rate and quality of poplar branch-cut aquaculture hybridized breeding seeds

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Embodiment Construction

[0021] In order to express the technical solution of the present invention more clearly, the present invention will be further described below in conjunction with the examples.

[0022] A method for improving the seed-setting rate and quality of poplar cut branches hydroponic hybrid breeding is realized through the following steps:

[0023] 1) Collection of flower branches: The collection of flower branches should be carried out before the sap flows. The collection time in Shandong and other areas is generally at the end of January and the beginning of February. When collecting flower branches, choose the branches that grow robustly in the middle and upper parts of the canopy and are free from diseases and insect pests. It is required that the thickness of the male flower branch is between 1.5~2.5cm, and the 2~3a branch is required, and the thickness of the female flower branch is between 2.5~3.5cm, and the 2~3a branch is required.

[0024] 2) Treatment of flowering branches...

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Abstract

The invention provides a method for increasing the fructification rate and quality of poplar branch-cut aquaculture hybridized breeding seeds. The technical problems in the present poplar branch-cut aquaculture hybridizing are practically solved, the method is an important breakthrough of the traditional poplar hybridized breeding technique, and the method has significance in producing more poplar fine breeds. The invention adopts a method for injecting nutrient substances for the branch-cut pistillate flower branches for successfully overcoming the technical difficulties of low fructification rate and low quality of the poplar branch-cut hybridized breeding seeds. Compared with a conventional method, the method provided by the invention has the advantages that the seed quality is high, the fructification rate of the seeds is increased by 140% or above, the method is simple and convenient, the operation is easy, and the method can be applied to production for large-scale poplar hybridized breeding.

Description

technical field [0001] The invention belongs to the technical field of hybrid breeding of forest trees, in particular to a method for improving the seed setting rate and quality of poplar cut branch hydroponic hybrid breeding seeds. Background technique [0002] At present, there are mainly two kinds of traditional hybrid breeding methods for poplar, one is artificial pollination and hybridization on the poplar mother plant in the outdoor field, and the other is hybrid breeding in indoor (greenhouse) application of cut branches and hydroponics. The first method of hybrid breeding has problems such as high cost, difficult operation, high safety risk, inconvenient seed collection, and limited selection of mother trees. The second method is convenient to collect scattered female parents for centralized hybridization, can provide a variety of hybrid combinations, quickly achieve breeding goals, and is easy to manage, low in cost, and avoids fruit drop caused by bad weather. Sow...

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Application Information

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IPC IPC(8): A01H1/02A01G31/00C05G1/00
CPCA01G31/00A01H1/02A01G24/00A01H1/027C05B1/02C05G5/23C05C9/00C05D9/02
Inventor 董玉峰李善文何明明朱文成舒秀阁任飞秦光华荀守华王卫东
Owner SHANDONG FOREST SCI RES INST
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