Abstract: A field experiment with Hanyou 804,Hanyou 649,Hanyou 650 and Hanyou 813 as materials was conducted in 2019,the control was Hanyou 73 and Fengliangyou No.4 under water and dry cultivation conditions,respectively.Some characters of water-saving and drought-resistant rice (Oryza sativa L.) combinations under water and dry cultivation conditions were observed.The results showed that the yield of water-saving and drought-tolerant rice increased by 4.86% to 36.60% and -1.47% to 3.51% compared with control (Hanyou73 and Fengliangyou No.4) under dry cultivation and water condition,respectively.Compared with water cultivation condition,chalky grain rate of water-saving and drought-tolerant rice was decreased significantly under dry cultivation condition,but amylose content was increased.In addition,the whole growth period of water-saving and drought-tolerant rice under dry cultivation condition was about 10 days longer than that of water cultivation condition.

Key words: water-saving and drought-resistant rice (Oryza sativa L.), combination, yield, appearance quality, growth period