期刊论文

中文

灌溉排水学报

1672-3317

2016

35

6

68-71

10.13522/j.cnki.ggps.2016.06.013

国家国际科技合作专项（2013DFG91190） 国家自然科学基金项目（31272248和31401951） 湖南省教育厅项目（13C397） 校青年基金项目（14QNZ04）

本校为第一机构

为探索不同增氧灌溉对水稻根系生长和产量的响应机制,以杂交水稻深优9586为研究对象,采用盆栽实验,研究了杂交水稻根系生长特征和根系活力特性,并对根系各项指标与产量及其构成要素进行了相关性分析。结果表明,相比CK,增氧灌溉处理促进根系生长,有利于根系深扎,显著提高根系活力,增产5.5%~29.7%;在齐穗期,不管是白天增氧处理组还是夜间增氧处理组,根系活力都体现出随增氧处理的频率降低而降低,并且处理之间存在显著差异;在分蘖期,对相同增氧频率条件下,白天增氧处理有利于促进根系生长,夜间处理更有利于增强根系活力;根系活力与产量及产量构成因素绝大多数都成极显著正相关或显著正相关,因此,增...

To explore response mechanism of rice root growth and yield to different oxygation,with hybrid rice Shenyou9586 as the object,pot experiment was carried out to study the characteristics of hybrid rice root growth and root vigor,and correlations between root physiological indexes and yield and its constitute factors were analyzed.The results showed that oxygation treatments promoted root growth,was conducive to root depth,increased root activity,and increased yield by 5.5%~29.7%compared to CK.Root activity decreased with decreasing frequency at full heading stage,and there were significant diff...