Rapid breeding method for bud development and transplantation of potato seeds

Abstract

The invention discloses a rapid breeding method for bud development and transplantation of potato seeds. The method comprises the following steps of: carrying out pretreatment on potato seeds, namely selecting potato seeds which are not germinated, steeping the selected seeds by seed soaking liquid, and then draining the seeds taken out of the soaking liquid; accelerating germination of the potato seeds, namely putting the potato seeds and a germination medium on a germination bed at intervals for 3-4 layers, accelerating germination for 8-12 days at the temperature of 15-20 DEG C and in a moist state; carrying out seedling cultivation, wherein taking down the buds of 3cm-5cm from the potato seeds after accelerating germination, and transplanting the buds to a seedling cultivation bed after the buds are processed by a rooting agent; transplanting into a large field, namely cultivating the strong seedlings of 10cm-15cm in the seedbed, and transplanting the strong seedlings to a seed farm. The breeding method disclosed by the invention is small in sowing quantity, high in breeding coefficient and low in production cost, and the quality of the potato seeds is easily controlled.

Description

technical field [0001] The invention relates to the technical field of crop breeding, in particular to a rapid breeding method for seed potatoes. Background technique [0002] Potato seed potato grades are divided into original seed, original seed and field seed. In the existing seed potato breeding technology, the original seed breeding adopts the method of tissue culture. The breeding of the original seed adopts the method of sowing the whole potato of the original seed. One seed potato is sown in one litter, about 5,000 nests are sown per mu, and 5,000 seed potatoes are needed, with an average of 4-5 potatoes per litter. The reproduction coefficient is based on the number of The ratio is 4-5 times, the reproduction coefficient of this technology is very low, and the consumption of the original seed is particularly large. According to the current market price of the original seed at 0.35-0.50 yuan / grain, the cost of the original seed per mu is 1750-2500 Yuan, high produc...

AI Technical Summary

Problems solved by technology

If the seed potato itself contains diseased, miscellaneous, and inferior potato pieces, it is difficult to distinguish when sowing, and cutting the seed potato into pieces is likely to cause cross-infection. If a piece of diseased potato is cut, without changing the cutting tool, 30 times the cross-infection rate, the quality of seed potato production in the field mainly depends on potato farmers to remove diseased, inferior and miscellaneous plants in the field. Because potato farmers pursue the purpose of yield, or in order to save working hours, they are subjectively unwilling to remove diseased, inferior and miscellaneous plants, thus affecting the quality of seed potatoes

[0003] And, under current technology, the seed potato of production is bigger, and the amount of seed (by weight) used for propagation of next-level seed potato is larger, and in the multiplication of next-level seed potato, often will be to bigger potato block Cut into pieces, which increases the chance of cross-contamination and affects the quality of seed potatoes

[0004] The existing seed potato breeding technology requires a large amount of seeds, low reproduction coefficient, high production cost, and difficult quality control of seed potatoes