| 1. | High quality tea comes from the bud and the first two leaves of the growing shoot , although more mature leaves are used in some teas
优质的茶叶来自幼芽和正萌发的头两片嫩叶，不过在某些茶中也采用较成熟的叶子。 |
| 2. | Generally , the group formed firstly due to the similarity in leaf color , including the color of the face and the back of young leaf , and the color of mature leaf
N ） 12 、 27 、 15号其花色都是紫红色，叶色均属于暗紫色， mpd结果也表明这三者具有较近的亲缘关系。 |
| 3. | The aloin content of the young leaves under shaded conditions was only 63 . 33 % of that under natural light and the aloin content of the mature leaves under shaded condition was 23 . 77 % of that under natural light
其中，遮荫下幼叶芦荟素的含量是自然光照下的63 . 33 % ，而成熟叶芦荟素含量仅有自然光照下的23 . 77 % 。 |
| 4. | Whether a . vera l . grew under shaded conditions or natural light , its aloin content was significantly and negatively correlated with the age of the leaves and the age of its mature leaves showed much more influence
无论自然光下还是遮荫条件下生长的芦荟，芦荟素的含量与叶龄有显著的负相关性，遮荫对成熟叶的影响更大。 |
| 5. | In the heaviest injury degree leaves , mid - mature leaves are main , second are mature leaves , the fresh leaves coming out in a short while and not extending completely are the least and have strong resistant ability to so2
在受害程度严重的叶片中，中龄叶所占比例最大，其次是老龄叶，刚长出尚未完全伸展的嫩叶所占比例最小，对so _ 2抗性最强。 |
| 6. | Western blot analysis by using this particular antiserum showed that the higher expression level of pds in mature stigma than in mature leaves and stamen , and the higher expression level of pds in mutant stigma than in young stigma
用sds一尸age和we 、 te : ! :印迹检测分析表明，表达产物的分子量约为63kd 。利用his6技术分离纯化融合蛋白，纯度可达90 %以上。 |
| 7. | However , the uv - b / par was lower because of high flux of light in summer when the grown - up plant lived , this we akened the effect of uv - b radiation on maize , and the structures and functions of mature leaves were completely developed , consequently , the effect of uv - b radiation on photosynthesis of grown - up plant was not distinct
当其为成株时已进入夏季，此时自然光照较强， uv - b par的比值较低，在一定程度上削弱了uv - b辐射对玉米的影响，且玉米叶片已发育完全，各种防御结构和物质也已在发挥作用，因而uv - b辐射对玉米成株无明显影响。 |
