The Current Breeding Situation and Development Strategies on High-quality Inbred Rice in Guangxi

According to the rice quality, production and resistance of 50 high-quality inbred rice varieties bred and examined and approved in Guangxi during the period 2000-2011, we analyze the current breeding situation and existing problems concerning high-quality inbred rice variety in Guangxi: the rice quality has been greatly improved, but the amylose content is still low; a series of scented rice varieties with high quality and high yield have been bred, such as Zhongguangxiang No.1, Sanxiang 628, Guixiang No.1, Liufengxiangzhan, Jiafuxiang No.1, Zhaoxiang No.1; the production of high-quality inbred rice during the period 2009-2011 was significantly enhanced, annually more than 66 00 kg /ha, but the disease resistance of rice variety bred was generally poor, and disease-resistant breeding stuck in the mud. Henceforth it is necessary to be oriented by the rice market, and take the rice type with long grain, high adhesive strength, medium-low amylose content and low chalkiness degree as the breeding objectives; introduce the existing high-quality variety resources with medium amylose content at home and abroad, then directly use them or innovate upon them as hybrid strain; take the thick-and-long-grain rice type as breeding objectives, and further improve the yield per unit area of high-quality inbred rice by improving the thousand-grain weight; increase capital investment, improve breeding techniques, strengthen disease-resistant and degeneration-resistant breeding, and improve the application of modern biotechnology in the breeding of high-quality inbred rice.