| Conventional rice variety is the advantage and characteristic of rice in Guangdong province, with a glorious history. The success of dwarf breeding in 1959 led the first green revolution in the history of agricultural development. Guangdong Academy of Agricultural Sciences（GAAS）took the lead in breeding good quality rice and super hybrid rice and was in the leading position in conventional rice breeding. GAAS has selected and bred 23 conventional rice cultivars with a planting area of more than 66.7×104 hm2, such as Guangchangai, Zhenzhu’ ai, Guangluai 4, Guangjie 9,Shuangzhuzhan, Qing’ erai, Zhaiyeqing 8, Guichao 2, Shuanggui 1, Shuanggui 36, Teqing 2, Zhenguiai 1, Qishanzhan, Tesan’ ai 2, Yuexiangzhan and Huanghuazhan. GAAS established the scientific system of rice ecological breeding theory and put forward the breeding techniques such as“cross combination and population selection”,“Semi-dwarf, earlygrowing and super-high yield breeding”,“group screening method” and so on, which has made good achievements and outstanding contributions to grain production in Guangdong and even through out the country. In the future, breeding of new rice varieties with high and stable yield, fragrant long grain, functional nutrition and green and high efficiency will be carried out to ensure food security, improve food quality and meet diversified consumption demand. Meanwhile, modern rice breeding theory will be developed and new technologies will be applied to improve the efficiency of variety breeding. On the basis of the brilliant history created by scientists of the older generation, Guangdong rice researchers shoulder the historical mission of inheritance and development of conventional rice breeding. |
