Rapid propagation method for apple stock SH40

Abstract

The invention belongs to the technical field of apple seedling cultivation, and discloses a method for rapid propagation of apple rootstock SH40, by adopting a culture medium of MS+6-BA0.6mg / L+IBA0.1mg / L+PVP500mg / L for primary culture , adopt MS+6‑BA0.8mg / L+IBA0.1mg / L to process subculture, adopt rooting medium 1 / 2MS+IBA1.3mg / L+melatonin 0.03mg / L for rooting culture, and then use pure The hardening and transplanting of sawdust realizes the rapid propagation of apple rootstock, which not only ensures a high survival rate, but also retains the excellent characteristics of the rootstock, providing a convenient method and way for the development and further expansion of the apple industry.

Description

technical field [0001] The invention belongs to the technical field of apple seedling cultivation, in particular to a method for rapid propagation of apple rootstock SH40. Background technique [0002] The SH line was selected and bred by the Fruit Tree Research Institute of Shanxi Academy of Agricultural Sciences using the method of cross-breeding (Guoguang × Henan Begonia) after 16 years of research (1978-1993). After years of systematic observation and identification, the comprehensive economic characters of the three stock numbers SH40, SH6, and SH1 exceed those of the foreign apple dwarf stock stocks such as M, MM, and P, and the cultivation performance characters are outstanding and stable in 13 provinces across the country. . At present, my country's apple production model has gradually changed from the traditional low-efficiency canopy orchard model to a modern low-stock dense planting intensive high-efficiency production and cultivation model, and has gradually tra...

AI Technical Summary

Problems solved by technology

[0004] 1. The adaptability of dwarf rootstocks in the later stage of hardening and transplanting is poor. The root distribution of SH series of apple dwarf rootstocks (such as SH38, SH40) is shallow, which requires better fertilizer and water conditions.

[0005] 2. After transplanting into the field, the apple dwarf rootstock SH40 tends to grow poorly. The early growth is too weak, and it is difficult to form yield. After the fruit is not in place, the thinning of flowers and fruits is not in place, and it is easy to appear large and small years, so it cannot show the advantages of dense planting of dwarf rootstocks.

[0006] 3. It takes a long time to establish a rapid propagation system for apple dwarf rootstock tissue culture seedlings, and the cost is high. The cost increases, and the investment in garden construction is increased, which will affect the application of some fruit farmers.

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