Rapid propagation method of apple rootstock SH38

Abstract

The invention belongs to the technical field of apple seedling cultivation, and discloses a method for rapid propagation of apple rootstock SH38, by adopting a culture medium of MS+6-BA0.6mg / L+IBA0.1mg / L+PVP 500mg / L for primary culture , Subculture with MS+6‑BA 0.6mg / L+IBA 0.1mg / L, root culture with rooting medium 1 / 2MS+IBA1.2mg / L+melatonin 0.03mg / L, and then pure Sawdust hardening and transplanting; realized the rapid propagation of apple rootstock, not only ensured a high survival rate, but also retained the excellent characteristics of the rootstock, providing a convenient method and approach for the development and further expansion of the apple industry. The invention establishes a method for rapid propagation of apple rootstock SH38, which is of great significance for producing high-quality dwarf virus-free seedlings and has broad market prospects.

Description

technical field [0001] The invention belongs to the technical field of apple seedling cultivation, and in particular relates to a rapid propagation method of apple rootstock SH38. Background technique [0002] The SH line was selected and bred by the Institute of Fruit Trees, Shanxi Academy of Agricultural Sciences through cross-breeding (Guoguang×Henan Begonia) after 16 years of research (1978-1993). After years of systematic observation and identification, the comprehensive economic traits of SH40, SH6, and SH1 have surpassed those of foreign apple dwarfing rootstocks such as M, MM, and P, and have been tested and popularized in 13 provinces across the country. The traits are outstanding and stable . At present, my country's apple production model has gradually changed from the traditional low-efficiency canopy orchard model to the modern low-stock dense planting intensive and high-efficiency production and cultivation model, and gradually transformed from the world's lar...

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 in the field, the dwarf apple rootstock SH38 tends to grow poorly. The early growth is too weak, and it is difficult to produce 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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