Abstract:

The aims are to breed conventional indica rice variety with fragrance and high quality and of both early and late maturing characteristics in Guangxi rice cropping area, thus improving the brand competitiveness of Guangxi fragrant rice. The fragrant rice varieties ‘Tiandongxiang’ and ‘Zaoxiang 1’ were used as female parent and male parent respectively, and the breeding was conducted by genealogy after hybridization. ‘Guangliangxiang 2’, a high-grade and high-quality conventional rice variety of fragrant type, was bred through regional trials of conventional high-quality rice in Guangxi, and by identifying agronomic characters, yield, resistance and quality. ‘Guangliangxiang 2’ was approved by Guangxi Crop Variety Appraisal Committee in 2019. It has moderate growth period and good agronomic characters. The average yield of the variety in the Rice Regional Trail is 6912.0 kg/hm², 11.81% higher yield than that of the control. The rice quality is up to the second-class of the standards set by the Ministry of Agriculture and Rural Affairs for early and late rice, with a fragrance value of 83. This variety has wide adaptability and could be grown as early and late rice in the rice cropping areas of the south, central and north of Guangxi. It has also been introduced and put on records in same ecological zones in Guangdong, Jiangxi and Hunan. The variety is the only conventional rice variety selected by the Guangxi Department of Agriculture and Rural Affairs as the first batch of seven green rice varieties in 2020, and it is the main variety for the public brand construction of “Guangxi Fragrant Rice”, which is favored by growers and rice merchants. ‘Guangliangxiang 2’ has the characteristics of high yield, high quality, fragrance and wide adaptability, and is suitable for promotion in Guangxi and the middle and lower reaches of the Yangtze River.

Key words: ‘Guangliangxiang 2’, fragrant rice, breeding, cultivation technique