Effect of Temperature and Radiation on Indica Rice Yield and Quality in Middle Rice Cropping System
文献类型： 外文期刊
作者： Tu, Debao 1 ; Wu, Wenge 1 ; Xi, Min 1 ; Zhou, Yongjin 1 ; Xu, Youzun 1 ; Chen, Jinhua 2 ; Shao, Caihong 3 ; Zhang, Yuping 4 ; Zhao, Quanzhi 5 ;
作者机构： 1.Anhui Acad Agr Sci, Rice Res Inst, Hefei 230031, Peoples R China
2.Anhui Agrometeorol Inst, Hefei 230031, Peoples R China
3.Jiangxi Acad Agr Sci, Red Soil Engn & Technol Ctr, Soil & Fertilizer & Resource & Environm Inst, Nanchang 330200, Jiangxi, Peoples R China
4.Chinese Acad Agr Sci, China Natl Rice Res Inst, Hangzhou 310006, Peoples R China
5.Henan Agr Univ, Coll Agron, Henan Key Lab Regulat & Control Crop Growth & Dev, Zhengzhou 450002, Peoples R China
关键词： rice; temperature; radiation; yield; quality
期刊名称：PLANTS-BASEL （ 影响因子：4.658； 五年影响因子：4.827 ）
ISSN：
年卷期： 2022 年 11 卷 20 期
页码：
收录情况： SCI
摘要： Rice (Oryza sativa L.) is cultivated in a wide range of climatic conditions, thereby inducing great variations in the rice growth, yield and quality. However, the comprehensive effects of temperature and solar radiation under different ecological regions on the rice growth, yield and quality are not well understood, especially in a middle rice cropping system. The rice growth, yield- and quality-related traits were investigated under different ecological regions. Among different areas, the days before the heading stage and after the heading stage of six cultivars ranged from 80 to 120 and from 30 to 50. The gaps of the grain yield, head rice rate, chalky grain rate and chalkiness level were about 1.2-52.4%, 1.0-3.0%, 2.7-12.7% and 0.3-4.5%, respectively. This study demonstrated that in these regions, temperature is a limiting factor compared with radiation. Moreover, the rice growth, yield and quality were closely associated with daily air (DT), maximum (MaT), minimum (MiT) and effective accumulated temperatures (EAT). An excellent rice growth, a high grain yield and an excellent quality could be achieved if the EAT was higher than 1592 degrees C center dot d and the MiT was lower than 23.1 degrees C before the heading stage, and if the DT, MiT and MaT were lower than 25.7 degrees C, 22.0 degrees C and 30 degrees C after the heading stage, respectively. These findings served as an important reference for optimizing cultivar selection for a specific area and determining suitable areas for a certain variety.
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