...漠绿洲最主要的两种农作物(向日葵和玉米)为研究对象,通过测定叶面积、叶饱和鲜重及干重,计算了比叶面积(SLA)和叶干物质含量(LDMC)。结果表明:两种农作物叶面积和叶重的关系均为极显著线性相关关系(P0.0001),因此用叶重推算叶面积是可行的。
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比叶面积(specific leaf area,SLA)和叶干物质含量(leaf dry matter content,LDMC)是植物叶片的两个关键性状,能够较好地反映植物生长策略及植物利用资源的能力、生物量大小和生态系统功能[2-3].
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叶片干物质含量 LDMC ; Leaf dry matter content
出叶片干物质含量 Leaf dry matter content ; LDMC
计算出叶片干物质含量 Leaf dry matter content ; LDMC
比叶重、叶绿素含量和群体光合速率等叶片性状与群体干物质生产密切相关。
The relationship of production of population dry matter was strong with the leaf characters such as ratio of leaf weight with leaf area, chlorophyll content and population photosynthetic rate.
由于苞叶中半纤维素含量较高，导致其产气量和干物质消化率较高，因此，其营养价值高于叶和茎。
Because of higher hemicellulose content of husks, the gas production and DMD were higher in the position of husks than stems and leaves.
经过测定比较，APRI处理的草莓根、茎、叶中干物质的含量均有增加。(6)apri处理对草莓的产量没有显著的影响。
The dry matter in roots, stems and leaves of strawberry was increased. (6) APRI had not obvious affected on the production of strawberry.
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