Variation and Enlightenment of Sown Area of Rice Varieties in Rice Research Institute of Guangdong Academy of Agricultural Sciences

Abstract

Since the new century, based on the development strategies of rice in the new era, Guangdong Province has taken many measures to promote the quality development of rice in China. As the main force of rice industry in Guangdong Province, the Rice Research Institute of Guangdong Academy of Agricultural Sciences (hereinafter called"GDRRI") has cultivated a large number of rice varieties and materials, which is promoting the transformation and upgrading of the rice industry in Guangdong and even the whole country, with a view to improving the quality and efficiency of rice production in China. Based on the data of rice sown area in Guangdong Province from 2003 to 2020, the changes in rice sown area in Guangdong Province and the sown area of rice varieties cultivated by GDRRI in Guangdong Province and the relationship between them were analyzed and studied by combining the variety promotion of GDRRI in this time period. The results provided references for objectively understanding the variation trend of rice planting structure and the healthy development of rice industry in Guangdong Province. The results showed that the high quality and high yield rice varieties ensured the stability of the total rice output in Guangdong Province. Among them, the new rice varieties with high yield, high quality, multi-resistance and wide adaptability developed by GDRRI kept emerging, and the sown area of the varieties accounted for about 50% of the sown area of rice in Guangdong Province every year. For example, Jifengyou 1002, Guang8youjinzhan, Guang8you165, Meixiangzhan 2, Yuehesimiao and Wushansimiao had a larger sown area. Driven by many high-quality rice varieties, Guangdong has improved the quality rate of rice in the whole province. These results indicate that the innovation and development of rice breeding can promote the transformation and upgrading of the rice industry in Guangdong and even the whole country, and ensure the grain security of China. In terms of breeding objectives in the future, centering on the strategic needs of ensuring national food security and promoting high-quality agricultural development, it is necessary to further improve the quality and efficiency of rice production by further promoting market-oriented and forward-looking independent innovation of seed industry science and technology and rice production capacity.

Keywords

• guangdong province
• rice
• sown area
• hybrid rice
• conventional rice
• breeding