摘要
以济麦22为供试材料,在相同密度条件下,通过不同的种植方式和三种施氮量组合,探讨种植方式与施氮量对冬小麦光合生理特性及光能利用率的影响。结果表明:冬小麦"20 cm+40 cm"沟播(沟播)能够显著提高小麦旗叶光合速率(Pn)、荧光参数与叶绿素含量指数(CCI),从而维持较好的叶片光合生理功能。沟播光能利用率平均值显著高于平作大小行与等行距。施氮量增加显著提高冬小麦Pn、荧光参数与CCI等生理指标,光能利用率也随之提高。施氮量对冬小麦光合生理指标及光能利用率的影响超过种植方式。
Jimai 22 was planted with different patterns and 3 nitrogen application rates at different densities,then their effects on the light use efficiency were discussed.The results indicated that the（20＋40）-cm furrow planting could improve the photosynthetic rate（Pn）,fluorescence parameter and chlorophyll content index（CCI） in the flag leaves of winter wheat.So the photosynthetic physiological function was kept better.The light use efficiency with furrow planting was obviously higher than that with flat planting with big-small row and same row.The nitrogen application rate also could obviously improve the photosynthetic physiological indicators and light use efficiency.While the effect of nitrogen application rate was over that of planting pattern.
出处
《山东农业科学》
2010年第11期16-18,23,共4页
Shandong Agricultural Sciences
基金
"十一五"国家科技支撑计划重大项目"国家粮食丰产科技工程子项目(2006BAD02A09)"
山东省高等学校优秀青年教师国内访问学者项目(2009年)
山东省高等学校科技计划项目(J09LC03)
山东省中青年科学家科研奖励基金项目(BS2009NY008)
关键词
冬小麦
种植方式
施氮量
光能利用率
Winter wheat
Planting pattern
Nitrogen application rate
Light use efficiency
