A kind of production method of virus-free original seed of potato

Abstract

The invention discloses a producing method of potato detoxification seeds of breeders. First, the pH of a nutrient solution is regulated through the formula of calcium nitrate, ammonium nitrate, potassium hydrogen phosphate, potassium sulfate, magnesium sulfate, ferrous sulfate, copper sulfate, manganese sulfate, boric acid, zinc sulfate and sodium molybdate; then, control over the temperature of the nutrient solution, circulation of the nutrient solution, field planting of seedlings, and regular-time spraying are sequentially performed. Compared with the prior art, with the method, the number of tubers grown on a single potato plant is large and can range from 50 to 100 ordinarily; the harvesting weight of the tubers can be regulated, and the obtained seeds of breeders are uniform in size; a seedbed is opened to observe the growing condition of the roots of the plants, repeated multi-time harvesting is achieved, easy and convenient operation is achieved, and the environmental conditions (such as temperature, pH and concentration of the nutrient solution) of the seedbed can be accurately regulated and controlled in the producing process; a production system can be cleaned and disinfected conveniently, rapidly and efficiently, and the method has the value for popularized use.

Description

technical field [0001] The invention relates to a method for cultivating potatoes, in particular to a method for producing virus-free original seeds of potatoes. Background technique [0002] At present, the production of potato virus-free original seeds is generally carried out on the seedbed in the greenhouse. The traditional production method is to cut the grown tissue culture seedlings on the substrate. The substrate is perlite, vermiculite, and humus. One or a mixture, and spray the nutrient solution in the substrate to ensure the supply of water and fertilizer. This kind method can damage potato rhizome in transplanting process, forms tuber quantity and is few, and can only once harvest when plant is withered, can not observe root growth situation at any time, can not stipulate the size of harvest tuber. Also someone has invented a box-type seedbed, which can make the roots of potato plants grow suspended in the seedbed, but the design of the seedbed is inconvenient f...

AI Technical Summary

Problems solved by technology

This method will damage the potato rhizomes during the transplanting process, and the number of tubers formed is small, and it can only be harvested once when the plants wither, and the growth of the roots cannot be observed at any time, and the size of the harvested tubers cannot be specified.

Someone also invented a box-type seedbed, which can make the roots of potato plants grow in the air in the seedbed, but the design of the seedbed is inconvenient for observation and frequent harvesting operations, and the nutrient solution formula is not very specific, and the number of tubers formed is not much