Regulating of endogenous abscisic acid on subtances changes in terminal bud of lilium davidii var . unicolor bulbs 对兰州百合鳞茎顶芽内物质变化的调节作用
Dark green , round to heart - shaped , thin , glossy / light back . single or multiple crown . standard 深绿色圆到心型薄叶子，叶面光滑，明亮的叶背。单或多个顶芽。标准型。
May appear variegated with mottled pattern over main veins . usually upright single crown , rarely suckers . standard 有时在主叶脉有斑叶的花样。通常单个顶芽，很少有侧芽。标准型。
Light to medium green , elliptical , very thin , crinkled , long flexible petiole . usually single crown . large 亮到中绿色椭圆型很薄的叶子，有波纹，长而有弹性的叶柄。通常单个顶芽。大型。
Dark olive green , plain , heart - shaped , pointed / light red back . single crown , may sucker . small standard 深橄榄绿色心状尖型平坦叶子，亮的红色叶背。通常单个顶芽，有时候会有侧芽。小的标准型。
The results showed that removal of the shoot apex resulted in significant increase in nicotine concentration in different organs and whole tobacco plants 结果表明，切除顶芽导致烟株体内烟碱浓度和含量显著增加。
Light green , small , round , thin , glossy , soft , velvety , tightly bunched / pale back ; randomly curved petioles . usually single crown 亮绿色小而圆的薄叶，叶面光滑柔软，植株紧密，浅色叶背，叶柄常有弯曲。通常是单个顶芽形态。
Removal of the shoot apex and leaf wounding did not show any influences on nitrogen uptake by plant , but increased nicotine production per unit nitrogen 切除顶芽和叶面损伤对烟株体内的氮浓度及吸氮量均无显著影响，但显著提高了烟株体内单位氮素产生烟碱的能力。
Effects of removal of the shoot apex and leaf wounding on nitrogen uptake and nicotine production were studied with tobacco plants grown in sand or hydroponic medium under the controlled conditions 摘要采用砂培和营养液培养方法，研究了在营养生长阶段切除顶芽和叶片损伤对烟株生长、体内烟碱浓度、氮浓度及吸氮量的影响。
The outcome shows that naixiong crude drugs is little iightcoioured , has a protruding terminal bud , has little fragrance ; the bodily form of shanchuanxiong is emacicated and small sized , has a dry and decayed gully in the middle part , has a strong fragrance the wooden degreen of naixiong " s fibre is at a lower stage , and thas small oil drops ; but chuanxiong and shanchuanxiong ' s are at a higher stage , and they has oil drops in abundance 对奶芎、山川芎与川芎进行了生药学研究：奶芎药材颜色较浅，顶端有一突起的顶芽，气微香；而山川芎体形枯瘦，个体较小，中心常有枯朽状沟槽，气香。奶芎组织中纤维木化程度低，油滴较少；而川芎、山川芎纤维木化程度高，油滴较多。
