leaf sheath

叶鞘:植物叶片基部的鞘状结构
常用释义
叶鞘:植物叶片基部的鞘状结构,用于保护叶片的发育和生长。

例句

1·The flag leaf sheath length affects heading.

倒一叶鞘长度显著影响出穗效果。

2·It was shown in the populations that the apiculus coloration matched to basal leaf sheath coloration in each plant.

在各个植株上,稃尖颜色和叶鞘颜色的表现完全相同。

3·It might be one of the reasons why BPH has a preference of feeding on leaf sheath aggregately from chemical point of view.

这也许是褐飞虱喜欢聚集在叶鞘部位取食的化学因素之一。

4·Plants with a mild phenotype formed normal leaf sheaths and blades, but lacked ligules and showed diffusion of the blade-sheath boundary.

轻度的植株能有正常的叶及叶鞘,但没有叶舌,叶与叶鞘的边界弥散。

5·Nitrogen output rate from flag leaf, stem and leaf sheath were increasing, but nitrogen contribution rate was decreasing with varietal development.

随着品种演替,旗叶、茎杆和叶鞘中的氮素输出率增加,而输出氮的贡献率则与此相反。

6·The relationship between spikelet fertility and the green leaves area, the dry matter dynamic of leaf sheath and culm of different cultivars was analyzed.

对不同品种绿叶面积和茎鞘干物质的动态变化及其与子粒结实的关系进行了分析。

7·The floret number was significantly correlated with the weights of leaf, leaf sheath, whole main stem or tiller, and leaf area, but not with the length of stem.

孕穗期小花数均与叶面积、叶片重、叶鞘重和总干物重呈显著或极显著正相关,而与茎高的相关不显著。

8·It concluded that, at the early stage of grain filling, leaf sheath performed the physiological function as sink, which received nutrient substance from leaves.

此结果表明,灌浆初期,叶鞘接收叶片的营养物质,具备“库”的生理作用;

9·In the whole grain filling periods, leaf sheath performed function as flow organs which participated in assimilation products transportation from leaves to grains.

在整个灌浆期,叶鞘又作为物质向籽粒运输的通道(流)——转运同化物质。

10·Heat tolerant cultivar is higher than heat sensitive cultivar in leaf phloem area ratio and leaf sheath duct area ratio, while lower in leaf duct area ratio and leaf sheath phloem area ratio.

耐热品种的叶片韧皮部面积比例、叶鞘导管面积比例大于不耐热品种,叶片导管面积比例、叶鞘韧皮部面积比例则小于不耐热品种。