leaf base

Basal leaf blade oblong or elliptic, truncate or cuneate at base.

基生叶长圆形或椭圆形，截形或楔形在基部。

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The optimizaiton of secondary leaf base angle seems crucially important.

其中，倒二叶的叶基角改良最为重要。

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It'stretches from the leaf base to the vascular ring in the stem axis.

它由叶子基部的维管束延伸至茎轴的维管束.

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This study was conducted for chemical components of four sections ( leaf tip, leaf center, leaf base and leaf margin) flue-cured tobacco samples with representative grades ( B2F, C3F, X2F) of 3 stalk positions from 9 ecological tobacco-growing areas.

对9个生态烟区3个部位烤烟样品的4个区位（叶尖、叶中、叶基和叶缘）的主要化学成分进行了分析研究。

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Basal leaf blade oblong, base not cordate.

基生叶长圆形，基部不心形。

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Among different positions of green tobacco leaf, the water content of mid-rip was the biggest, the second was lateral vein, the third was leaf base, the last were leaf margin and leaf tip;

在不同的叶位间，烟叶水分含量随着叶位的增高有递减的趋势，尤其是叶片水分含量的递减幅度最大。

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Stipule A modified leaf found as an outgrowth from the petiole or leaf base.

托叶:由叶柄或叶基部生长出的变态的叶,为发育产生的外部结构.

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A series of axillary buds longitudinally arranged in a leaf axil are closely covered by leaf base and stem protrusions.

由一纵列发育程度不同的芽组成的休眠腋芽，被叶柄基部和茎的突起紧紧包裹。

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Leaves alternate, sessile, terete, fleshy, base expanded, apex obtuse or aristate awned; leaf axil fascicular pilose.

叶互生，无柄，圆柱状，肉质，基部扩大的，先端钝或具芒；叶腋束状具柔毛。

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Samara glabrous; leaf blade surfaces smooth and glabrous with tufted hairs on veins, base oblique, apex acuminate to narrowly acuminate.

翅果无毛叶片表面平滑和无毛的具丛生的毛在脉上，基部偏斜，先端渐尖到狭渐尖。

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