leaf base

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。

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。

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.

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。

Basal leaf blade oblong, base not cordate.

基生叶长圆形，基部不心形。

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。

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。

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。

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.

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。