中国水稻科学2017，Vol.31Issue(3)：278-287,10.DOI:10.16819/j.1001-7216.2017.6135
增氧模式对水稻光合特性及产量的影响
Effects of Aeration Methods on Photosynthetic Characteristics and Yield of Rice
摘要
Abstract
[Objective]The objective is to reveal the effects of different aeration methods on photosynthetic characteristics and dry matter production of rice, and to determine the suitable aeration method for the growth and improvement of grain yield of rice. The results will contribute to the understanding of the role of root aeration on rice growth, and provide a reference and a theoretical basis for aerobic cultivation of rice.[Method]Three rice varieties falling into different ecotypes, Zhongzheyou 1 (lowland rice), IR45765-3B (deep-water rice) and Zhonghan 221 (upland rice), were used to study the effects of aeration methods on rice photosynthetic characteristics and yield. Under such four oxygen enrichment treatments as calcium peroxide application (T1), micro-bubble aerated water irrigation (T2), water-controlled irrigation (T3) and water-logging (control).[Result]T1 and T2 increased the leaf SPAD value, leaf area index, net photosynthetic rate, transpiration rate, stomatal conductance and dry matter accumulation of the three rice varieties during the main growth stages, and significantly improved the effective panicle numbers and seed setting rate. Compared with the control, the SPAD value, leaf area index, photosynthetic parameters and dry matter weight were decreased in T3, and the seed setting rate also significantly dedined, but the water use efficiency of leaves was increased. At full ripe stage, compared with the control the grain yield of Zhongzheyou 1, IR45765-3B and Zhonghan 221 increased by 22.38%, 18.27% and 18.17%, respectively, in T1 and by 13.89%, 10.67% and 8.85%, respectively, in T2. However, it was 5.86%, 8.19% and 6.16%, respectively, lower than that of control in T3, with considerable differences between treatments.[Conclusion]T1 and T2 retarded leaf senescence, and improved leaf area index and photosynthetic capacity, and significantly increased the dry matter accumulation and yield of rice. The main reason for the decline of photosynthesis and yield of rice under T3 was the shortage of water supply.关键词
水稻品种/增氧模式/SPAD值/叶面积指数/光合特性/产量Key words
rice variety/aeration method/SPAD value/leaf area index/photosynthetic characteristics/yield分类
农业科技引用本文复制引用
胡继杰,朱练峰,钟楚,林育炯,张均华,曹小闯,禹盛苗,Allen Bohr JAMES,金千瑜..增氧模式对水稻光合特性及产量的影响[J].中国水稻科学,2017,31(3):278-287,10.基金项目
国家自然科学基金资助项目(31270035,30900880) （31270035,30900880）
国家重点研发计划资助项目(2016YFD0101801) （2016YFD0101801）
浙江省重点研发计划资助项目(2016C02050-3). （2016C02050-3）
