应用生态学报2011，Vol.22Issue(3)：681-686,6.
开放式增温下非对称性增温对冬小麦生长特征及产量构成的影响
Effects of asymmetric warming on the growth characteristics and yield components of winter wheat under free air temperature increased
摘要
Abstract
In 2007-2009, a field warming experiment was performed in Nanjing of Jiangsu Province , China to investigate the effects of asymmetric warming ( all-day warming, AW; daytime warming from 6:00 to 18:00, DW; and nighttime warming from 18;00 to 6:00, NW) on the growth and development of winter wheat under free air temperature increase ( FATI). Asymmetric warming increased the effective tillers and decreased the ineffective tillers. In CK plot, the ineffective tillers were 2. 6, 1.7 and 3. 5 times of those in AW, DW and NW plots, while the effective tillers were decreased by 13. 7％ , 3. 2％, and 0. 5％ , respectively. Asymmetric warming also increased the plant height, flag leaf area, and the total green leaf area and green leaf ratio at flowing stage. In treatments AW, DW, and NW, the plant height was increased by 5. 6％ , 4. 5％ , and 1. 3％ , flag leaf area increased by 45. 7％ , 39. 4％ and 26. 1％ , total green leaf area increased by 25. 1％ , 29. 8％ , and 17. 3％ , and green leaf ratio increased by 37. 7％ , 43. 3％ , and 38. 7％ , respectively , compared with CK. As for the yield components, the spikelet number per panicle and the filled grain number per panicle in treatments AW, DW and NW were increased by 4. 1％ , 5.1％ , and 1.7％, and by 2. 2％ , 5. 3％ , and 2. 6 ％ , respectively. Though the grain/leaf ratio in treatments AW, DW, and NW was decreased by 15. 3％ , 8. 5％ , and 11. 3％ , the thousand-grain mass in the treatments was increased by 6. 9％ , 6. 2％ and 11. 8％ , and thus, the yield per unit was increased by 27. 0％ , 40. 1％ , and 18. 3％ , respectively, compared to the CK. Our results suggested that under anticipated warming, the winter wheat productivity in eastern China would be further enhanced.关键词
气候变暖/非对称性增温/开放武增温/冬小麦/生长特征/产量构成分类
农业科技引用本文复制引用
田云录,陈金,邓艾兴,郑建初,张卫建..开放式增温下非对称性增温对冬小麦生长特征及产量构成的影响[J].应用生态学报,2011,22(3):681-686,6.基金项目
国家自然科学基金项目(30771278)、江苏省自然科学基金项目(BK2007159)、教育部新世纪优秀人才计划项目(NCET-05-0492)和中国农业科学院所长基金项目资助. （30771278）
