汉英词典
Chinese-English Dictionary
MEANING OF 叶柄
叶柄 (葉柄)
petiole / leafstalk
〈名〉叶的组成部分之一,连接叶片和茎,长条形。有的叶子没有叶柄,叶片直接和茎连接。
() yè bǐng
EXAMPLE SENTENCES

黄色叶柄处具有窄小复叶的北美蕨类。

North American fern with narrow fronds on yellowish leafstalks.

小白菜器官中硝酸盐含量表现为:叶柄(茎)﹥叶片﹥根。

The nitrate content of Chinese cabbage organ was: petiole (stem)> leaves> root.

甘薯叶柄在中国的消费日趋增加,特别是在收获季节。

Itsconsumption in China is increasing, especially in the harvest season.

叶片占植株地上部鲜质量的比例高于叶柄

Leaf blade had more proportion than petiole in fresh weight.

晚抽薹、株型小巧紧凑、叶色深绿、叶面皱缩、叶柄洁白、品质佳。

Small and exquisite plant shape, dark green and winkless leaf, white petiole, good quality.

叶互生,通常单叶,具叶柄;叶片边缘全缘或有时具圆齿。

Leaves alternate, usually simple, petiolate; leaf blade margin entire or sometimes crenate.

每个维管束的韧皮部外面有数层厚壁细胞,增加叶柄的机械支持作用。

There are some sclerenchymatous cells outside the phloem of each vascular bundle to increase the supporting force of the petiole.

叶片变得萎黄,茎短而纤细,并且在茎、叶柄和叶片下表面会出现花青素变色。

Leaves develop chlorosis; stems are short and slender, and anthocyanin discoloration occurs on stems, petioles, and lower leaf surfaces.

北柴胡茎从生或单生,茎基部无纤维状叶柄,残基物为紫红色;

North-Chaihu's stem tufts or grows single, there isn't any fabric leafstalk, and the remnant is purple red.

以安祖花的叶片、叶柄、带腋芽茎段为外植体进行组织培养,对其快速繁殖进行了研究。

To establish the technical system of rapid propagation, the young leaves, petioles, and stems with buds of Anthurium andraeanum were cultured.