Method for culturing new lines of superhigh vitamin C Kiwi berry

Abstract

The invention discloses a method for culturing new lines of superhigh vitamin C Kiwi berry, which relates to a method for culturing the new lines of Kiwi berry. The method comprises the following steps: 1) determining a first generation cross parent; 2) developing a first generation interspecific crossing; 3) performing male plant breeding of F1-generation high vitamin C; 4) developing interspecific backcrossing; 5) evaluating a F2-generation colony system; and 6) obtaining the new lines F2-EC of superhigh vitamin C. Compared with the prior art, the method has the following advantages and active effects that 1) breeding obstacle of dioecism plant can be overcome; 2) he Kiwi berry vitamin C content is greatly increased; 3) interspecific crossing and interspecific backcrossing are employed, the Kiwi berry new lines with excellent quality and superhigh vitamin C content can be cultured; and 4) the method is suitable for performing directive breeding on high-VC content Kiwi berry lines.

Description

technical field [0001] The invention relates to a method for cultivating a new kiwifruit strain, in particular to a method for cultivating a new super-vitamin C kiwifruit strain. Background technique [0002] Vitamin C (Vitamin C, Vc) is an essential antioxidant and enzyme cofactor in organisms, and is closely related to plant growth and development, stress resistance and human health. But humans have lost the ability to synthesize Vc, and must obtain Vc from fresh fruits and vegetables. Kiwi fruit is rich in Vc, known as the 'King of Vc', and is a nutritious and healthy fruit that is widely welcomed by consumers. However, the nutritional components of commercial kiwifruit varieties vary greatly, such as Chinese kiwifruit ( Actinidia chinensis complex) The Vc content of different varieties varies significantly: 50-420mg / 100g fresh fruit weight. At present, consumer groups have put forward higher nutritional and health requirements for kiwifruit fruit. How to use the chara...

AI Technical Summary

Problems solved by technology

③The current commercialized kiwifruit varieties belong to the Chinese kiwifruit complex, which has the characteristics of sweet taste and large fruit, but the Vc content of the fruit is not as prominent as that of kiwifruit and other species

The applicant's research group carried out a comprehensive evaluation of the Vc content of kiwifruit species based on the platform of the National Germplasm Resource Garden of kiwifruit. On this basis, it was found that the collected kiwifruit has a very high vitamin C content (500-1379 mg / 100g fresh fruit heavy), but at the same time, kiwifruit has a special smell (such as the smell of grass), which is not liked by consumers; in addition, the existing Chinese kiwifruit tastes sweet, but the vitamin C content is between 30-250mg / 100g fresh fruit weight. There is still much room for improvement

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