Evaluation of blast resistance in different rice varieties in Southern Anhui
The blast resistance levels of 31 monogenic lines harboring different blast resistance(R) genes were analyzed in a disease nursery located at Shangshan Town in Xiuning county, Anhui province. According to the scoring data, varieties with 3 R genes, namely Pi-ta, Pi-ta2 and Pi-kp showed better resistance performance than the others. Moreover, among the 293 main varieties collected from the middle and lower reaches of Yangtze River, 77 varieties continuously performed blast resistance in 2012 and 2013 and worth to be further evaluated in a large scale production. These varieties should have a potential value for disease resistance breeding in Anhui province.