查询词典 leaf

The research of cytology shows that there are dramatically morphological and structure changes in the leaf: the cells of mesophyll array loosely and parenchyma cells reduced, cambium becomes thinner and degree of xylem becomes more serious, the content of chlorophyll dropped; the changes of conducting tissue and stoma structure affect transport and allocation of water and nutrient, hinder leaf growth and disturb regular metabolism of leaf, at last lead to wilt, rot and become crisp papyraceous.

细胞学研究表明，病叶组织的叶肉细胞排列疏松，薄壁细胞层次减少，形成层变薄，木质化程度加深，叶绿体减少；在病叶中由于疏导组织和气孔的结构发生变化，影响养分和水分在植株体内的运输和分配，干扰叶片的正常代谢，抑制叶片的生长发育，最终导致叶片失水萎缩、干枯，变为焦脆的干纸状。

According to the partial correlation coefficient between the growth of forest and leaf nutrient,the N、 K content in leaf of clone S2 affected the growth of breast-height diameter mostly,and influenced the growth of tree height were Mn 、 P 、 N、 Cu content.The K、 N、 P content in leaf of clone S8 affected the growth of breast-height diameter mostly,and influenced the growth of tree height were Ca、 N content.

4从林木生长与叶片营养的偏相关系数大小来看，影响无性系S2人工林胸径生长的主要是叶片中N、K元素含量，而影响树高生长的主要是叶片中Mn、P、N、Cu元素含量；在无性系S8人工林中，影响胸径生长的主要是叶片中K、N、P元素含量，影响树高生长的主要是叶片中Ca、N元素含量。

Eight common domestically and foreign cultivated Cucurbita pepo L. cultivars were selected to study 14 morphological indexes influencing plant type under sunlight greenhouse. And effects of plant type on yield formation was discussed. Results show that the main morphological indexes influencing plant type are plant height, internode length, average leaf area, functional leaf quantity and leaf angle.

选取近年来国内外广泛栽培的8个西葫芦品种为试材，在日光温室中对影响西葫芦株型的14个形态指标进行研究，分析了影响西葫芦株型的主要形态指标，探讨了西葫芦株型对产量形成的影响。

The result of study shows: Compared with contrast group, the leaf glucoside of the ginseng can promote chickens to resist the production of NDV antibody; The leaf glucoside of the ginseng has facilitation to the development of the pigeon breast gland, have inhibition on the development of chickens spleen, Different influence of bursa because of different way when giving the medicine; Ginseng leaf glucoside can formed ability of nucl

研究结果表明：与对照组相比，人参叶皂武能促进鸡杭NDV杭体的产生；人参叶皂武对鸡胸腺的发育有一定的促进作用，对鸡脾脏的发育有一定抑制作用，对法氏囊的影响由于给药方式不同而异；人参叶皂武能使鸡单核一巨噬细胞系统吞噬能力增强。

Recent genetic and molecular studies have led to the identification of a number of genes that regulate leaf development, and have also revealed that plant hormones play important roles in leaf primordium induction and leaf patterning.

在叶的发育过程中，究竟哪些因素决定植物叶的这种差别，调控究竟是怎样进行的？这些问题长期以来一直为从事植物研究的科学工作者所关注。

The results indicate that all of the peltate glandular hairs and head glandular hairs are from an origin—protoderm on the leaf primordium and young leaf, which outgrows on leaf surface and increase radial broad and form the initial cells of the glandular hairs.

研究结果表明，唇形科的腺毛不论是盾状腺毛类还是头状腺毛类，在发育上都是单起源的，即所有的腺毛均起源于叶原基或幼叶上的原表皮细胞。该细胞在叶表面向外突出生长，径向加宽，形成腺毛原始细胞。

The leaf was opening after the cells of pulvinus absorbed the water and the leaf was in closure while the water was drainage from the leaf.

结论］叶枕部细胞吸水撑大后叶子就张开，叶枕细胞排水缩小后叶子就闭合。

Three divergent types in Puna chicory population: split-leaf type, full-leaf type and red-leaf under same condition are based on genetic makeup.

为研究对象，将形态学、生态学、生理学、细胞学、同工酶方法相结合，在不同组织水平上，研究普那菊苣种内的遗传变异和变异程度。

And the leaf transportation percentage of 14C photoassimilates was 14.6% increased.The 14C-soluble sugar distribution percentage of CCC treatment in leaf and stem were less than those of the control,respectively,but the 14C-soluble sugar distribution percentage of CCC treatment in tuber and root were more than those of the control,respectively.The 14C-starch distribution percentage of CCC treatment in leaf,stem and root were less than those of the control,respectively.but the 14C-starch distribution percentage of CCC treatment in tuber was more than that of the control.The radioautography also indicated that photosynthate transport from top tissues to tubers was faster in CCC treatment than that in control.These results showed that appropriate concentrations at 1.5 g L-1 of CCC significantly improved the photosynthetic characteristics,transport and distribution capability of photoassimilates in potato,and as a result tuber yield would be increased.The pattern of translocation shown is held to reflect the activities of the various metabolic sources and sinks,the activities of these sources and sinks being hormonally controlled.

和叶运输的百分比为14 C photoassimilates为14.6 ％升高为14 C -可溶性糖分配的百分比CCC认证，在治疗叶和茎均小于那些控制，分别为，但14碳-可溶性糖分配的百分比中华基督教会在治疗块茎和根多于那些控制，分别为14 C -淀粉分配的百分比CCC认证治疗叶，茎，根均小于那些控制， respectively.but了14 C的淀粉分布的百分比CCC认证的待遇是块茎以上的对照radioautography还表示，光合产物的运输，从顶端组织，以块茎快，在CCC认证的待遇比在control.these结果表明，适当浓度一点五克L - 1的CCC产品大大提高了光合特性，运输和分配的能力， photoassimilates在马铃薯，结果块茎产量将增加，模式易位显示举行，以反映活动的各种代谢源和汇，这些活动的源和汇正激素的控制。

In the test with randomized block arrangement, 31 female varieties of G. biloba and 4 male types of single plant clone were used to study the leaf yield traits and its relativity with leaf yield, leaf flavone and lactone contents.

方法］采用31个银杏雌性品种和4个雄株类型的单株无性系，随机区组排列，研究叶产量性状及其与叶产量的相关性，叶黄酮、内酯含量。

The role of the environment is very important.

的作用，环境是非常重要的。

At that time, the High Court of England and Wales Court of Queen's Bench president of William Murray, Lord Mansfield in June 22, 1772 ruling:"No matter then there is the inconvenience, but there must be a decision, I can not say that this case under the law in England are permitted or authorized; are so black should be released."

当时的英格兰及威尔士高等法院王座法庭院长William Murray， Lord Mansfield于1772年6月22日宣判：「无论有那麽不便，但总要有个决定，我不能说这件案在英格兰法律之下是准许或认可；所以黑人是应该被释放。