
Effects of Controlled Irrigation on Yield and Quality of Water-Saving and Drought-Resistance Rice in Cold Region
1st author: hucheng229@163.com
Received date: 2021-07-24
Online published: 2021-09-20
In this study, Longdao 18 and new strains Longdao 17006, Longdao 17009, Longdao 17011 and Longdao 17016 were used as test materials to study the effects of controlled irrigation and conventional irrigation on the yield and quality of these materials, hoping to provide references for water-saving cultivation in cold regions. The results showed that the controlled irrigation treatment had different effects on the yield and quality of the tested materials. Under controlled irrigation, the yields of Longdao 17009 and Longdao 18 were higher than those under conventional irrigation, while the yields of Longdao 17006, Longdao 17011, and Longdao 17016 decreased. The yield of Longdao 17009 was significantly higher than other materials under controlled irrigation treatment, and the increase in effective tillers and the increase in the number of grains per panicle were the main reason for its increase in yield. The eating quality of Longdao 17009, Longdao 17011 and Longdao 18 under controlled irrigation was lower than that under conventional irrigation, the increase in protein content was the main reason for the decrease in the taste of Longdao 17009. In addition, controlled irrigation was beneficial to maintaining a higher leaf color value during the filling stage of rice and to maintaining the physiological activity of the leaves. Combining controlled irrigation with water-saving and drought-resistant rice can not only save water, but also increase rice yield while maintaining good quality, achieving cost-saving and increasing efficiency, which is of great significance to the sustainable utilization of water resources.
Guohua DING, Liangzi CAO, Jinsong ZHOU, Liangming BAI, Tongtong WANG, Yu LUO, Guang YANG, Zhugang LI, Lei CHEN, Hui JIANG, Kai LIU, Haofei LIU, Xueyang WANG, Yanling SUN, Yan HUANG, Dawei YIN, Shichen SUN, Yongcai LAI . Effects of Controlled Irrigation on Yield and Quality of Water-Saving and Drought-Resistance Rice in Cold Region[J]. China Rice, 2021 , 27(5) : 93 -96 . DOI: 10.3969/j.issn.1006-8082.2021.05.020
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