农作物良种化已成为我国农业增产增收的主要带动力量。目前我国主要农作物良种覆盖率已达90％以上,种子在农业增产中的贡献份额占到30％。 我国育种科研初步形成体系。目前我国地市级以上农业科研机构中从事育种工作的研究所达400 The improvement of crop varieties has become the main driving force of agricultural production and income in China. At present, the coverage rate of main crops in China has reached more than 90%, and the contribution of seeds to the increase of agricultural production accounts for 30% of the total. China's breeding scientific research initially formed system. At present, over 400 research institutions engaged in breeding work in agricultural research institutes above the prefecture level in China