Selenium enrichment strawberry secondary grafting propagation method

Abstract

The invention discloses a selenium enrichment strawberry secondary grafting propagation method. The selenium enrichment strawberry secondary grafting propagation method comprises the steps that firstly, a Beijing purple sweet potato 6 serves as a stock, a red strawberry seedling serves as a scion, a strawberry hybrid is cultivated, and the strawberry hybrid of the first year is obtained; secondly, after the strawberry hybrid of the first year is obtained, in the second year, a watermelon seedling serves as a stock, the strawberry hybrid of the first year serves as a scion, a secondary strawberry hybrid of the second year is obtained, and then the new strawberry hybrid species is cultivated; thirdly, at the beginning of August, seedlings are cultivated through the new strawberry hybrid species, during transplanting, the row spacing ranges from 10 cm to 12 cm, double-row planting is adopted, and 11000-12000 strawberry seedlings are planted per mu; fourthly, the strawberry seedlings are covered with a greenhouse film when the temperature is reduced to 10 DEG C or lower at night, the greenhouse film is covered with grass mats when the temperature is reduced to 0 DEG C or so at night, and the grass mats are covered with a protective film when the temperature is reduced to 5 degrees below zero or lower at night; fifthly, before flowering, 10-15 flowers are reserved for each inflorescence, malformed fruits and fruits with diseases and pests are removed in time when the young fruits are colored so that the fruit quality and the commercial fruit rate can be improved; sixthly, after the fruits of the inflorescences are harvested, the flower stems are removed in time.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a method for secondary grafting and propagation of selenium-enriched strawberries. Background technique [0002] my country is a country with a large population. With the continuous improvement of people's living standards, there are more and more requirements for the quantity of fruits. Strawberry belongs to Rosaceae and is a perennial herb. Its berries are extremely rich in nutritional value and high in economic value. It is known as the "Queen of Fruits". It not only contains vitamins ten times higher than other fruits, but also contains The ellagic acid has anti-cancer effects, so it is very popular in European and American markets. The price is five times that of apples and twice that of grapes, and the supply is still in short supply. Japan, Southeast Asia, Europe and the United States all import tens of thousands of tons of quick-frozen strawberries from my country ...

AI Technical Summary

Problems solved by technology

[0003] For a long time, although the strawberry yield, fruit size and quality have been improved through conventional breeding, the cultivated strawberry is a highly heterozygous body, and there is polyploidy in the genetics, so this improvement is slow and limited.

At the same time, the incompatibility of distant hybridization and limited genetic resources have also hindered the progress of conventional hybrid breeding, especially in the cultivation of strawberry varieties such as virus resistance, fungus resistance, herbicide resistance, stress resistance, and storage resistance. Difficult to achieve without suitable parents