EFFECTS OF DIFFERENT TEMPERATURE CONDITIONS ON YIELD AND PHYSIOLOGICAL PROPERTIES OF RICE (ORYZA SATIVA L.)
文献类型： 外文期刊
作者： He, L. X. 1 ; Chen, Y. L. 1 ; Zhang, T. T. 1 ; Zheng, A. X. 1 ; Cheng, Y. 1 ; Du, P. 3 ; Lai, R. F. 1 ; Lu, R. H. 1 ; Luo, H 1 ;
作者机构： 1.South China Agr Univ, Coll Agr, Dept Crop Sci & Technol, Guangzhou 510642, Guangdong, Peoples R China
2.Minist Agr, Sci Observing & Expt Stn Crop Cultivat South Chin, Guangzhou 510642, Guangdong, Peoples R China
3.Minist Educ, Key Lab Key Technol South Agr Machine & Equipment, Guangzhou 510642, Guangdong, Peoples R China
关键词： rice; temperature stress; antioxidant enzyme; chlorophyll content; yield
期刊名称：APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH （ 影响因子：0.711； 五年影响因子：0.796 ）
ISSN： 1589-1623
年卷期： 2019 年 17 卷 1 期
页码：
收录情况： SCI
摘要： Temperature is one of the major factors which have a significant effect on plants. This study was carried out to investigate the effect of temperature variation on physio-biochemical characteristics of two rice cultivars i.e., Basmati385 and Xiangyaxiangzhan. A pot experiment with three different treatments of thy-night temperature dynamics was carried out in a randomized complete block design with three replications. Treatments included Tl: 33 degrees C/27 degrees C, T2: 27 degrees C/21 degrees C, T3: 21/15 degrees C under 1200X yellow light intensity and 75% humidity. Results revealed that increase in temperature enhances photosynthesis, the production of photosynthetic pigments, but such increment was higher in Xiangyaxiangzhan than in Basmati385. Furthermore, temperature variably affected protein synthesis, and the activities of enzymatic antioxidants viz., superoxide dismutase (SOD), peroxidases (POD), catalase (CAT) in both cultivars. Moreover, the highest yield was recorded at 27 degrees C/21 degrees C for both cultivars and the temperature of 27 degrees C/21 degrees C was regarded as the most suitable temperature at filling stage for rice compared with 33 degrees C/27 degrees C and 21/15 degrees C.
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