To target our goals on the Green Super Rice breeding project, 45 rice breeding materials had been innovated. And their grain quality reached the first or second level of the national rice quality grain standard. Among them, 30 reached the first level of the national rice quality grain standard. Moreover, And the ＂CMS＂ line Chuan 106 A had been successfully developed. Its grain quality reached the first level of the national rice quality grain standard. Thirty-two rice new germplasms had been developed. These materials showed significant yield potential and 11 Of them showed remarkable yield potential. These materials have built up a good foundation for our future goals on the Green Super Rice breeding project. Thirteen new varieties had been released by the national or provincial Crops Variety Examination and Approval Committee. 3 Of them had been released by the National Crops Variety Examination and Approval Committee. And other ten combinations were tested in the national or provincial rice regional trials. Chuanyou 6203, which shows high grain quality coming closer to that of the Thai fragrant rice, had been successfully developed and released. Chuanyou6203 fillin the gap on producing good grain quality rice in the upper reaches of the Yangtze River, especially in the gap of Sichuan province where good grain quality rice is not usually produced. Besides of breeding varieties, five superior alleles related to the yield, grain quality and disease resistance were identified and mapped in this project. We had also developed 20 molecular markers closely linked to the phenotype of grain shape, chalkiness, resistant starch, high stigma exsertion and blade surface villi. Our work provides useful information for breeding the Green Super Rice with high-yield and good grain quality. At the same time, we had actively promoted the planting area for the new varieties through their demonstration. The planting area for the new varieties increased up to 10,467 ha.
Science and Technology Consulting Herald