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

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...

AI Technical Summary

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 drop due to insufficient nutrition after pollination, and the number of fruit seeds obtained due to thinning more fruit ears Even this small amount of seeds is prone to poor quality such as immature and full

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