Method for hydrothermal hotbed accelerating germination of pecans

Abstract

The invention discloses a method for hydrothermal hotbed accelerating germination of pecans and belongs to the field of forestry plantation. Through high-area arrangement of a hydrothermal nursery pond, pecan seeds undergo accelerating germination through gibberellins and undergo layered and mixed storage in a sand storage and lamination mode; in combination with a mixed substrate heated at a certain temperature, water is retained, a shed is put up, and the pecan seeds are cultured in a laminated mode. The germination rate is over 90% in 40 days after the seeds are sown by utilizing the method, part of seedlings can reach the grafting standard in autumn of the transplantation year, the seedling culture time is short, and the method is suitable for large-scale breeding. In addition, a hydrothermal hotbed improves the temperature of the substrate, advances the time for seed germination, makes generated sprouts tidy, is favorable for root system growth and makes root systems of the cultured seedlings flourish.

Description

technical field [0001] The invention relates to the field of forestry planting, in particular to a method for promoting germination of pecans in a hydrothermal hotbed. Background technique [0002] American Pecans ( Carya illinoinensis Koch), also known as thin-shell hickory, long hickory, belongs to Juglandaceae Hickory, is an ecological and economical tree species integrating high-grade dried fruit, landscaping, and high-grade wood. American hickory has been introduced to China for more than 110 years, but the introduction and cultivation are mostly sporadic, and industrial production has not been formed. One of the main reasons is that the species are unclear, the supply of good seedlings is tight, and the supporting cultivation techniques are not perfect. With the development and promotion of the American hickory industry, the demand for American hickory seeds continues to expand, and the domestic supply of American hickory seedlings is in short supply. The research an...

AI Technical Summary

Problems solved by technology

However, there are still some problems in its seedling breeding technology. Because American hickory seeds have dormant habits, the traditional spring sowing seedling raising technology still has problems such as low germination rate, long germination time, and irregular germination. In the spring of 2019, there are disadvantages such as long period of nursery emergence, high risk, and high labor intensity. At present, a complete set of technical regulations for large-scale seedling production has not been formed, and the quality of seedlings is uneven, which restricts the rapid development of the American pecan industry.