关键词: 粳稻品种, 生育期, 产量, 外观米质, 抗逆性, 鄂西北

Abstract: Twenty japonica varieties with good quality and high efficiency were initially screened out among 145 collected varieties （lines）,and their growth period, yield and components, rice quality and comprehensive resistance were studied and analyzed in the northwest of Hubei. The results indicated that Yongyou 6763,Yongyou 4949,Yongyou 7053,Yongyou 1526,Yongyou 6760 and Nanfan 1605 had good yield potential and good comprehensive performance, which could be cultivated in the northwest of Hubei. The yields of Yangyujing No.2,Ning 5718,Nanfan 1610,Xu 32646,Yanjing 16,Yangjing 1612 and Wankenjing 372 were relatively high,and there were not obvious defects, so it was necessary to investigate the annual performance of these varieties in the northwest of Hubei. Huajing 295 and Wuyun 5020 had good yields, but their growth period was too long, so the seeding time should be appropriate. Sidao 14-211 and Xunong 33202 had high yields and good appearance, but their banded sclerotial blight was severe and lodging resistance was general, so it was not suitable for planting in areas with serious banded sclerotial blight. Shengdao 20, Huajing 8 and Yongyou 2640 had certain yield potential, and their growth period was suitable, but they had defect on lodging in the extreme weather of the maturation stage, so further test and demonstration was needed.

Key words: japonica varieties, period of duration, yield, rice quality, stress resistance, the northwest of Hubei province