Cultivation of watermelon with few seeds

Abstract

A method for culturing the less-seed water melon includes such steps as determining the chromosome translocation material to obtain two non-homologous chromosome translocating bodies with different translocation sites, back crossing or selfing or test crossing to transfer them respectively to the male parent and female parent, hybridizing between said male and female parents, discriminating in field, and variety comparison. Its advantages are high transfer efficiency, and high effect to decrease the number of seeds by 45-55%.

Description

[0001] Field: [0002] The invention belongs to a method for breeding watermelons, in particular to a method for cultivating watermelons with few seeds. Background technique: [0003] At present, there are two methods for cultivating watermelons with few seeds: [0004] 1. Use 4X to cultivate watermelons with few seeds: This method is to induce 2X watermelons into 4X watermelons with 0.2% colchicine, and use the characteristics of 4X watermelons with few seeds to breed watermelons with few seeds. However, due to the shortcomings of 4X, such as thick skin, late ripening, small melons, and low seed yield, only 4X watermelons with few seeds have been reported, and there are no popular varieties. [0005] 2. Use chromosomal translocation to cultivate watermelons with few seeds: use radiation, chemical mutagenesis and other methods to create non-homologous chromosomal translocations, obtain heterozygous translocations, and then conduct homozygous selfing to breed homozygous transl...

AI Technical Summary

Problems solved by technology

However, due to the shortcomings of 4X, such as thick skin, late maturity, small melons, and low seed yield, only 4X watermelons with few seeds have been reported, and there are no popular varieties.