Breeding method of low temperature resistant balsam pear

Abstract

The invention relates to a breeding method of low temperature resistant balsam pear, belonging to the technical field of plant breeding. Selfing separation and eight-generation directional selection are carried out by using the balsam pear hybrid variety, 'Hengza No.1', produced by Hunan Hengyang Defengyuan Deeds Industry Co., Ltd, so as to obtain the strong female line of balsam pear, HZ008. The local variety of Guangdong, 'ultralong green balsam pear', is taken as the initial material, and after six-generation directional section, the selfing line of the balsam pear, TC-006, with strong low temperature resistant capacity is obtained. The first generation of hybrid balsam pear, Xiuyu No.1, is prepared by taking strong female line of balsam pear, HZ008, a female parent, and the selfing line of the balsam pear, TC-006, as a male parent, and belongs to the first hybrid generation of green tangerine peel bar type low temperature resistant balsam pears; and the low temperature resistant balsam pear has the advantages that the low temperature resisting capacity is strong, the growth is normal in the condition of protected area in fall and winter, the prematurity is good, the section rate of female flower is high, the evenness is high, and the commodity is good, thereby being suitable for cultivation in facility protecting areas and exposed areas of Yangtze river basin and the area in the north f Yangtze river basin.

Description

1. Technical field [0001] The invention discloses a low temperature-resistant bitter gourd breeding method, which belongs to the technical field of plant breeding and is specially used for breeding low-temperature-resistant bitter gourd hybrids with long rod-shaped green peels. 2. Background technology [0002] Bitter gourd is native to tropical Asia and introduced into my country from the south. Therefore, the cultivation area of ​​bitter gourd in the southern provinces of my country is relatively large, and it is one of the main vegetables in the southern region. In recent years, with the continuous expansion of the cultivation area of ​​protected areas across the country and the increasing acceptance of bitter gourd as a health-care vegetable by consumers, many farmers have planted bitter gourd in protected land for off-season cultivation in order to improve efficiency. [0003] Because bitter gourd is native to the tropical region of Asia, most of the germplasm materials...

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Problems solved by technology

[0005] The present invention aims at the problems of lack of low temperature resistance of existing bitter gourd varieties and shortage of varieties in facilities protected areas, and provides a breeding method for low temperature resistant bitter gourds, and breeds bitter gourd varieties suitable for cultivation in facilities protected areas in the middle and lower reaches of the Yangtze River and areas north of it

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