Cultivation method for potato breeder's seeds

Abstract

The invention relates to the technical field of crop cultivation, in particular to a cultivation method for potato breeder's seeds. The cultivation method includes the steps of rapid propagation of virus-free seedlings, seedling hardening, transplanting, seedling stage management, harvesting and storage. The link of strong seedling culture before transplanting potato tissue culture seedlings is omitted, the inoculum density is increased in the link of rapid propagation of the virus-free seedlings, the inoculum mode is changed, the use ratio of a culture medium is greatly increased, propagation efficiency is improved, power consumption cost and culture space are reduced, and the cost of link of rapid propagation of the potato tissue culture seedlings is reduced; density is reduced in the transplanting link, multi-plant cuttage is carried out, traditional strong seedling transplanting is changed to be weak seedling transplanting, top ends perish after medium weak seedlings are transplanted and survive, apical dominance is broken, plant branching is improved, the number of single plant branches is increased to 2-4 from 1-2, plant growth vigor is improved, and the breeder's seed yield is increased. Meanwhile, the fertilization mode and fertilizer type are improved, so that management cost is reduced, and the yield is increased.

Description

technical field [0001] The invention relates to the technical field of crop cultivation, in particular to a method for cultivating original potato seeds. Background technique [0002] At present, the original potato original seed matrix cultivation generally adopts measures such as tissue culture seedling strong seedling cultivation before transplanting, strong seedling transplanting, high-density transplantation, and spraying nutrient solution at the seedling stage to increase production. The problems existing in this technology are as follows: [0003] (1) The cultivation of potato tissue cultured seedlings generally requires low density and controlled growth, resulting in high production costs for tissue cultured seedlings; [0004] (2) Strong potato seedlings are generally transplanted by a single plant, because the top dominance is strong and the plant has few branches, resulting in less tuber per plant and low yield; [0005] (3) The configuration of potato nutrient s...

AI Technical Summary

Problems solved by technology

[0003] (1) The cultivation of potato tissue cultured seedlings generally requires low density and controlled growth, resulting in high production costs for tissue cultured seedlings;

[0004] (2) Strong potato seedlings are generally transplanted by a single plant, because the top dominance is strong and the plant has few branches, resulting in less tuber per plant and low yield;

[0005] (3) The configuration of potato nutrient solution has certain technical requirements, which is not conducive to the operation of ordinary workers, and the cost is high, time-consuming and labor-intensive;

[0006] (4) The high-density production of original potato seedlings requires a large demand for tissue culture seedlings, which puts forward higher requirements on the conditions of potato tissue culture and rapid propagation, increasing costs, and the nutrient solution is mainly inorganic nutrition, and long-term use will easily lead to salinization of the seedbed;

[0007] (5) High density leads to insufficient growth of a single plant, and is not conducive to the operation of covering soil; results in a small number of tubers per plant and light weight, which is not conducive to the production of subsequent original seeds;

[0008] (6) High-density production leads to late growth, poor ventilation, easy to form a high-temperature and high-humidity microenvironment, and induce diseases