...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Agricultural and Forest Meteorology >Interactions of elevated [CO2] and night temperature on rice growth and yield
【24h】

Interactions of elevated [CO2] and night temperature on rice growth and yield

机译：[CO2]升高和夜间温度对水稻生长和产量的相互作用

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

To understand how a combination of high night temperature and elevated [CO2] during the reproductive growth period affects rice growth and yield, we conducted a pot experiment in four controlled-environment chambers with two levels of [CO2] (ambient, 380 ppm; and elevated, 680 ppm) and two levels of night temperature (22 and 32 degrees C). The day temperature was 32 degrees C in all treatments. As results, the whole plant and stem dry weight were significantly increased by both elevated [CO2] and high night temperature (P < 0.01), while the ear dry weight was significantly increased by elevated [CO2] and decreased by high night temperature (both P < 0.01). The fertilized spikelet number was significantly decreased by high night temperature (P < 0.01), but not affected by elevated [CO2] (P = 0.18). The individual grain weight was significantly increased by elevated [CO2] (P = 0.03). Consequently, brown rice yield was significantly increased by elevated [CO2] (P < 0.01) but decreased by high night temperature (P < 0.01), with a significant interaction of [CO2] and night temperature (P < 0.05). The results indicate that high night temperature will reduce the stimulatory effect of elevated (CO2] on rice production in the future if both continue to increase. (c) 2008 Elsevier B.V. All rights reserved
机译：为了了解生殖生长期间高温和[CO2]升高的组合如何影响水稻的生长和产量，我们在四个带有两个[CO2]水平（环境温度380 ppm;夜间温度升高（680 ppm）和两个夜间温度水平（22和32摄氏度）。所有处理的日温度均为32摄氏度。结果，[CO2]升高和夜间温度升高，整个植物和茎的干重均显着增加（P <0.01），而[CO2]升高则耳部干燥重量显着增加，而夜间温度升高（两者均升高） P <0.01）。夜间温度升高，受精小穗数显着减少（P <0.01），但不受[CO2]升高的影响（P = 0.18）。 [CO2]的升高显着增加了单粒重（P = 0.03）。因此，糙米产量因[CO2]升高而显着增加（P <0.01），但由于夜间温度升高（P <0.01）而降低，并且[CO2]与夜间温度之间存在显着的相互作用（P <0.05）。结果表明，如果夜间气温持续升高，夜间升高的温度将降低升高的（CO2）对水稻生产的刺激作用（c）2008 Elsevier B.V.

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号