分析了北京大屯科技站水稻叶面积指数LAI、叶绿素密度CH。
The paper studied the variational process of leaf area index LAI, leaf chlorophyll density ch.
同时，十二倍体较六倍体的叶绿体数目明显增多，叶绿素含量提高，但气孔密度减小。
The number of chloroplast and chlorophyll content in the dodecaploid are more than hexaploid, stomatal density are lower than hexaploid.
叶绿素含量受密度影响较小，随着氮肥的增加从苗期到灌浆期呈现增加趋势。
The content of chlorophyll were less influence by density, but showed a tendency of increase with the increase of nitrogen fertilizer mount from the seedling period to the grain filling period.
叶绿素含量受密度影响较小，随着氮肥的增加从苗期到灌浆期呈现增加趋势。
The content of chlorophyll were less influence by density, but showed a tendency of increase with the increase of nitrogen fertilizer mount from the seedling period to the grain filling period.
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