White large-fruited strawberry germplasm innovation method

Abstract

The invention relates to a white large-fruited strawberry germplasm innovation method and belongs to the technical field of plant breeding. A cultivated variety 'Toyonoka' of large-fruited strawberries having sweet and sour flavor are used as a female parent, a wild white-fruited yellow-hairy strawberry variety 'white bubble' originally from Yunnan in our country is used as a male parent to perform hybridization, the obtained hybrid generation undergoes colchicine processing and directional selections, such as fruit characteristics and features, and the novel white large-fruited strawberry germplasm is bred. By adopting the novel germplasm 'FB02', obtained fruits are conical, and the whole fruits are uniform and regular. The average fruit weight is about 13.4 g, the longitudinal diameter of each fruit is 3.5 cm, and the transverse diameter of each fruit is 2.7 cm. The fruits have white surfaces and low glossiness. Fruit pulp and cores are white. The sweet and sour flavor is agreeable, the fragrance is heavy, and the fruits have rich peach fragrance and moderate hardness. The growth vigor of plants is moderately strong, plant shapes are semi-upright, and the plant height is about 30 cm. Leaves are subround, large and thick, and leaf color is green. Flowers are moderately large, and the crown diameter is about 2.8 cm. The plants are similar to the Toyonoka in resistance, are quite resistant to anthracnose and can be used as a parent material for white strawberry breeding.

Description

technical field [0001] The invention relates to an innovative method for germplasm of large-fruited white strawberry, which belongs to the technical field of plant breeding, in particular to breeding of a new variety of large-fruited white strawberry. Background technique [0002] Strawberry (Fragarias pp.) is a plant of the Rosaceae Fragaria genus. There are about 20 species with 2x, 4x, 6x, 8x equiploidy, but only one of them is 8x. Extensively cultivated, others are wild. [0003] Strawberry berries are fragrant and juicy, sweet and sour, and rich in nutrition. Known as the "Queen of Fruits", they are deeply loved by consumers and have always occupied an important position in the international fruit market. Strawberry has a short production cycle, quick results, and high returns. It has become an important part of my country's high-efficiency agriculture and plays an important role in increasing agricultural efficiency and farmers' income. [0004] With the continuous i...

AI Technical Summary

Problems solved by technology

The fruit colors of modern large-fruited strawberry varieties are all red series, and the color is single, while there are white strawberries in the low-ploidy strawberry varieties in the wild state, but the fruit is only 1 to 2g, which lacks commerciality. Therefore, the creation of large-fruited white strawberries The new germplasm of strawberry and the cultivation of new high-quality strawberry varieties with large white fruit have broad market prospects

The existing methods for breeding new strawberry varieties are mostly hybridization between cultivars. This method is difficult to obtain varieties of fruit colors other than red, such as white. Therefore, innovatively establish large-fruited white strawberry varieties Quality methods and breeding of commercially good white strawberry varieties are of great significance

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