Cultivation management method of early-spring potato seed production

Abstract

The invention belongs to the technical field of potato breeding and discloses a cultivation management method of early-spring potato seed production. The method includes steps: paving horticultural ground cloth on the ground of a green-net house, applying a nonwoven nutrient bag, preparing a nutrient matrix, planting two layers of matrix in a layered manner, managing pesticide and fertilizer, regulating in the flowering period, controlling temperature and humidity in the green-net house, and preventing and controlling disease and pest. Growth characteristics of potato plants different in variety are combined, a seedling culture matrix is prepared scientifically and reasonably, growth environment conditions are adjusted artificially, growth vigor of introduced resource materials or premature varieties is improved effectively, the defect that the potato plants are poor in early-spring growth vigor, do not flower and are prone to flower falling and bud flowering after pollination is overcome, and fruiting rate of potato seed production is increased effectively, so that seed production efficiency is improved. The method is practical potato seed production management technology having operability and capable of saving labor and is suitable for being applied in variety breeding and potato seed breeding in low-latitude high-altitude areas.

Description

technical field [0001] The invention belongs to the technical field of potato breeding, in particular to a cultivation and management method for early spring potato seed production. Background technique [0002] Currently, the closest prior art: [0003] Potato seeds have the effect of getting rid of their own viruses (except PSIVY and PVTI), and can produce virus-free and pathogen-free seeds and potatoes. It is a low-cost, effective and easy-to-operate method to produce virus-free seed potatoes with potato seeds. Handy technology. At present, there are many domestic scholars who have carried out research on the original potato seed breeding technology, most of which use soilless cultivation technology, such as using substrate (vermiculite) breeding or hydroponic breeding, but this technology has certain shortcomings, high breeding technology requirements, and production input. The cost is higher, the output of a single virus-free seedling is lower, and the output per unit...

AI Technical Summary

Problems solved by technology

[0008] Under different ecological conditions, due to differences in varieties, seed production time, and management techniques, the efficiency of seed production is low

There are several reasons: use the conventional planting time for hybridization, the hybridization time is June and August, there is a lot of rain, the operation is difficult, and the pollen is easily washed off by the rain, and the seeds are often not harvested due to late blight; Seed production in early spring can solve the aforementioned problems, but there is insufficient sunshine time in early spring, poor growth of plants introduced from resources, easy premature aging of plants, no flowering or less flowering; early nutrient transfer downward, easy tuber formation, and nutrient-rich plants on the ground Insufficient supply; underdeveloped fruit, less seeds and poor quality; less pollen, which is not conducive to pollination; high temperature in the later stage, more flowers and fruits after pollination

[0009] Difficulties in solving the above technical problems: First, the plant growth of imported resources and early-maturing varieties is poor, and the characteristics of no flowering or less flowering are natural characteristics evolved under the original ecological conditions. It is impossible to produce seed seeds with general management methods. Or seed production efficiency is low

The second is that the temperature in the early spring planting period is low, which is not conducive to the vegetative growth of the plant. In the later period, the temperature is high and the air is dry, and the flowers and fruits will fall seriously after pollination.

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