Method for increasing grafting survival rate of waxberry ploidy variation plants

Abstract

The invention discloses a method for increasing the grafting survival rate of waxberry ploidy variation plants. According to the method, specific selections and regulations are made for grafting time, scion selecting, scion specifications, grafting types, a binding method, unbinding time and an unbinding method, treated robust scions are adopted for grafting, the years and specifications of the scions are strictly limited, the growth quality of the scions can be guaranteed effectively, disinfection treatment is conducted before scion picking, pretreatment is conducted through plant growth accelerators before grafting, the activity of the scions can be improved, the grafting survival rate is guaranteed, and the grafting survival rate is further guaranteed by adopting the step-by-step unbinding method in the later period. In conclusion, by adopting the grafting method, the survival rate can be increased manyfold, reproductive cost is lowered, and technical support can be provided for commercial seedling culture.

Description

Technical field [0001] The invention relates to a grafting technique for the genetic breeding of evergreen fruit tree plants, in particular to a method for improving the grafting survival rate of bayberry ploidy variant plants. Background technique [0002] Approximately 65% ​​of higher plants in nature are polyploid varieties, and the emergence of polyploid varieties can be divided into two methods: natural mutation and artificial mutation. Among them, the former is mainly affected by the natural environment to promote plant chromosome number and chromosome number changes, thereby promoting ploidy changes. The latter is to use artificial means (including physical and chemical methods) to make the chromosomes split and recombine, so that a new individual appears. Like the former, this individual has different germplasm of euploid and aneuploidy. [0003] The emergence of these germplasm has created very important conditions for genetic breeding research. However, these germplasm ...

AI Technical Summary

Problems solved by technology

In practice, it has been found that the bayberry of ploidy-variant plants has the salient characteristics of polyploidy, that is, the characteristics of large tissues and organs, weak branch toughness, strong fragility, large wounds in transporting tissues, slow healing, and easy pollution. Conventional method of grafting, the survival rate is less than 20%, and the amount of spikes is more than 6 times that of conventional materials, and the cost of grafting is more than 4 times that of conventional materials

[0004] Therefore, in view of the species characteristics of the above ploidy variation plants, the existing grafting technology can no longer meet the production needs, and there is an urgent need to develop a new grafting technology to realize the efficient propagation of different ploidy variation plants. Seedlings provide technical support

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