A cultivation method of new strawberry species

Abstract

The invention relates to the technical field of agriculture bioengineering and particularly relates to a cultivation method of new strawberry species. The method includes steps of: pushing petals aside of female parent flowers in a big bud stage; pulling up all the stamens; picking male parent flowers to pollinate the female parent flowers; covering the flower heads with paper bags after pollination; removing the paper bags when receptacles begin expand after 10-15 d and bear young fruits; picking mature hybrid fruits after 30-40 days successively; cleaning seeds, air-drying; putting the seeds into a refrigerator; refrigerating at 1-3 DEG C and keeping for further use; sieving sandy soil with a sieve having a size of 1-2.5 mm, autoclaving, disinfecting and seeding; and after the seeds survive, planting seedlings having 4-5 leaves to a greenhouse, accelerating culture, and performing strain evaluation screening in fields to obtain the screened new strawberry species. By adoption of a crossbreeding method, strawberry individuals with different excellent properties are hybridized, and through genetic recombination, individuals with heterosis are obtained.

Description

technical field [0001] The invention relates to the technical field of agricultural bioengineering, in particular to a method for cultivating new strawberry varieties. Background technique [0002] There are more than 3,000 registered strawberry varieties in the world, among which the United States and Japan are major strawberry breeding countries, with a large number of varieties bred and fast updates, and they are in the leading position in strawberry breeding in the world. [0003] Since most of the strawberry varieties in our country were introduced to the world 20 years ago (world-class new and excellent varieties cannot be introduced in time because my country has not yet implemented the variety protection law), although the national strawberry production area has reached 1.7 million mu, ranking first in the world, However, the average yield of strawberries is only 1-1.5 tons per mu, which is one-half of the output of the United States, Spain and Japan, and the quality ...

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Problems solved by technology

[0003] Since most of the strawberry varieties in our country were introduced to the world 20 years ago (world-class new and excellent varieties cannot be introduced in time because my country has not yet implemented the variety protection law), although the national strawberry production area has reached 1.7 million mu, ranking first in the world, However, the average yield of strawberries is only 1-1.5 tons per mu, which is one-half of the output of the United States, Spain and Japan, and the quality is poor, the resistance to disease and storage and transportation are poor, and the commodity value and export volume of strawberries are affected. Therefore, from these aspects, my country is still a "small country" in strawberry production in the world.

[0004] Donggang City is the earliest strawberry production base in the country to introduce strawberries and continue production and development to form an advantageous industry. However, like the whole country, it has been citing foreign varieties for many years. The varieties planted in solar greenhouses are divided into two categories: one is high-yield, poor-quality, European and American varieties with strong disease resistance and good storage and storage properties (Dukla, Tudela, etc.); one type is Japanese varieties with good quality, fragrant taste but poor disease resistance, low yield, and not resistant to storage and transportation (Zhang Ji, Feng Feng) Xiang, Baojiao Zaosheng, etc.); these varieties were all imported from abroad in the 1990s. Although each variety has different superior characteristics such as high yield, high quality, storage and transportation resistance, and disease resistance, due to the different breeding conditions It is impossible to fully adapt to the ecological growth conditions such as temperature, light, water and soil in Donggang area, which limits the greater improvement of Donggang strawberry production, quality and benefit

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