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The selective response of three chafers to different plant leaves The number of beetles caught by castor-oil plant leaves were obviously more than that of control filter paper, cotton, sweet potato, soybean, Abutilon theophrasti Medic, peanut and elm leaves.

铜绿丽金龟和暗黑鳃金龟对花生、榆树、大豆的取食量都比较大。该结果说明，金龟甲对蓖麻的趋向行为可能不是为了取食或者说不单单为了取食，是否具有引诱其交配、产卵、栖息等行为，都是疑点，需要进一步研究。

Aqueous extract of cotton has allelopathic effect on Raphanus sativus, Brassica campestris, Lactuca indica, Brassica campestris, Echinochloa crusgall, Setaria viridis and Abutilon theophrasti and its inhibition effect gradually strengthens with increasing concentration. Aqueous extracts from stems, leaves and roots of cotton inhibit or accelerate seed germination and seedling growth, and activity of enzyme of seedling root of cotton. While aqueous extracts from stems and leaves of cotton are 0.02 gmL^(-1), root length, shoot length, lateral root number and dry weight of cotton respectively increase by 10.3%, 3.1%, 22.9% and 2.4% over the control. The above mentioned indexes are lower than the control by 34.4%, 39.2%, 40.6% and 19.0% respectively as the aqueous extracts are 0.1 gmL^(-1). At the same time, root activity and SOD activity decrease by 38.2% and 36.7%, while POD activity and MDA content increase by 52.3% and 36.5%. Growth indexes of plant receptors increase at low concentrations but decrease at high concentrations of aqueous extracts. The allelopathic effect of aqueous extract of stems and leaves is stronger than that of root.

结果表明：棉花植株水浸提液对萝卜、白菜、莴苣、油菜、稗草、狗尾草、苘麻均具有化感效应，随着作用浓度增加，抑制效应逐渐加强；棉花茎叶和根系水浸提液对棉花种子萌发、幼苗生长、幼苗根系活力、根系酶活性有抑制或促进作用，当茎叶浸提液浓度为0.02 gmL^(-1)时，棉花根长、苗高、侧根数、干重分别比对照增加10.3%、3.1%、22.9%和2.4%，当浓度为0.1 gmL^(-1)时，上述指标与对照相比分别降低34.4%、39.2%、40.6%和19.0%，而根系活力、SOD活性比对照降低38.2%、36.7%，POD活性、MDA含量较对照增加52.3%和36.5%，不同浓度棉花植株水浸提液对棉花生长呈现"低促高抑"的规律，且茎叶浸提液作用效应大于根系浸提液。

Esp., most of the paddy rice, straw, rice leaves, rice husks, timber components, saw dust, reed and reed basketwork, rope and various plant stems and leaves, fruits etc. were in bright colors; among the paddy rice remains, the embossed veins and palea on the surface of some rice husks were also as clear-cut as original, so it was with a small amount of whole rice that connected the straw and ears of rice; there were some deposits mixed by rice husks, straws and rice leaves etc. crossed in several small layers under Layer 3, some looked like current objects, people would have such illusion that these were just fallen down on earth yesterday upon uncovering and could hardly believe that they were from thousands of years ago.

特别是，如稻谷、稻杆、稻叶、谷壳、木构件、木屑、芦苇及其编织物、绳子，以及各种植物茎叶、果实等等，多数色泽新鲜；水稻类遗存中，有的谷壳表面的隆脉和稃毛也清晰如初，还有稻杆与稻穗连在一起的少量整株水稻；第3层下数小层相间夹杂的谷壳、稻杆和稻叶等的混合堆积物，有的如同现时之物，刚揭开时真还会有一种昨天刚倒掉时的错觉，几乎无法相信它们是数千年前的物品。

Results The structures of the aloe leaves were basically similar as characterized by the presence of the large, well developed parenchymatous cells in the phloem pole where anthraquinones were stored. Some positive correlations exist between the contents of anthroquinones in the leaves of different species and different parts of leaves of the same species, and some phytotomic factors including the density of vascular bundles, the ratio of large parenchymatous cells in phloem and the thickness of the chlorenchyma.

结果 芦荟属植物叶的基本结构类似，维管束韧皮部内具大型薄壁细胞为该属的结构特征，是蒽醌类物质的主要贮存场所；不同种植物叶内及同种植物叶的不同部分中蒽醌类物质的含量不同与维管束分布密度、大型薄壁细胞所占比率及同化组织厚度成正相关。

In order to force the leaf color to change, we need to understand how leaves change color in the fall. In short, the temp drops and blockage in the veins is formed inside the leaves and it stops water from reaching every corner of the leaves. Then the chlorophyl disappears and they are replaced by those red and yellow pigments.

为了迫使叶子变色，我们就必需要了解它在秋天是如何变色的，简言之，温度下降阻碍叶片中的叶脉形成，因而停止了水份到达它的每一个角落，叶绿素跟著消失，而被红色和黄色的色素所取而代之。

In leaves,the concentration of Cd and Cu been up to 168.6μg·g~(-1) and 30.1μg·g~(-1),while in roots, they have been to 610.9μg·g~(-1) and 384.6μg·g~(-1).In these concentration compages,the leaves could accumulate Cd at a high rate,Cd50mg·g~(-1) Cu50 mg·g~(-1),Cd80mg·g~(-1) Cu30 mg·g~(-1),Cd80mg·g~(-1) Cu50 mg·g~(-1).At the concentration of Cd50mg·g~(-1) Cu50 mg·g~(-1), Iris pseudacorus L. could accumulate Cd and Cu at a high rate:inleaves,Cd82.908μg·g~(-1), Cu30.722μg·g~(-1),in roots, Cd266.181μg·g~(-1), Cu395.83μg·g~(-1),and at this concentration the plant could grow well, the dry weight of leaves and roots of it were 64.3% and 81.1% of the concentration compage Cd0mg·g~(-1 Cu50 mg·g~(-1)s.

研究表明，①黄菖蒲对Cd、Cu均有较强的吸收积累能力，其中对Cd的吸收积累能力相对大于Cu：地上部Cd、Cu含量最高分别达168.6μg·g~(-1)和30.1μg·g~(-1)，根部Cd、Cu含量最高分别达610.9μg·g~(-1)和384.6μg·g~(-1)；黄菖蒲地上部分Cd积累量均随处理浓度的升高而增加，特别在处理Cd50mg·g~(-1) Cu50mg·g~(-1)组合胁迫下，黄菖蒲对Cd、Cu的积累量为：叶的Cd含量为82.908μg·g~(-1)，Cu为30.722μg·g~(-1)；根的Cd含量为266.181μg·g~(-1)，Cu395.83μg·g~(-1)，且生长良好，叶和根的干重分别为处理Cd0mg·g~(-1) Cu50 mg·g~(-1)的64.3％和81.1％。

Adding N, P could improve cucumber root activity, increased the absorptionof N, P and Mg, decreased that of K; Adding N improved the contents of Ca,Fe, Mn and Zn in leaves, and adding P accelerated absorption of cucumberroot to Fe. Adding K decreased the contents of N, P in leaves, but increased K,Fe content, contents of Ca, Mn and Zn decreased at the same time.4. Adding the rates and ratio of N, P, and K increased the activity of SOD incucumber leaves and root. The changes of POD activity were complex, maybeP played the more important role.

增加氮、磷的用量和配比有利于增强黄瓜的根系活力，促进黄瓜对氮、磷的吸收，减少对钾素的吸收，提高叶片镁含量，增氮提高了叶片中钙、铁、锰和锌的含量；增磷促进了植株对铁的吸收；增钾降低叶片中氮、磷含量，增加植株对钾的吸收，提高了叶片中铁的含量，但钙、锰和锌的含量降低。4。

Basal leaves decussate, middle stem leaves opposite, distal stem leaves alternate; inflorescence paniculiform with cymose branches

交互对生的基生叶，中间茎生叶对生，互生的上部茎生叶；花序圆锥花序状的具聚伞状的分枝 1b var。

For example, the process of re-repair Venster is determined by the inspectors needed to repair a few pieces which leaves a good mark to my department, first wash Venster, For you need to replace the blade through the EDM machine remove leaves, and then to Cleaning new ones filling on the leaf soluble After heat treatment, polishing materials, cross-examination, If no change blades, just fix what leaves the track loaded into Venster on the punch press with special mold to make the track smooth curvature of the smooth adoption of testing equipment, such as Venster leaves some pits have used special tools can be carried out to ascertain.

再例如修理Venster的过程是经检验人员确定所需修理的哪几片叶片标注好交给我部门，先清洗Venster，如需更换叶片的则需要经过EDM机拆除叶片，然后再进行清洗换上新的叶片加注上可溶材料经过热处理后打磨抛光交检验，如不需换叶片的，只需修复一下装叶片的轨道，把Venster放在专用模具上用冲床冲压，使其轨道弧度圆滑，顺利的通过检测设备，如Venster叶片上有些小坑便用专用工具进行打磨便可。

The contents of carbonaceous compounds, such as soluble saccharide, petroleum ether extract and volatile acid in mellow leaves were higher than in overripe leaves, but nitrous compounds, such as nicotine, total nitrogen, volatile alkali, in mellow leaves were lower than in overripe leaves.

过熟烤烟烟叶除葡萄糖含量变化不明显外，果糖、麦芽糖、蔗糖等水溶性糖和石油醚提取物、总挥发酸及钾含量均大幅度降低；而氮、烟碱、挥发碱和挥发碱／烟碱等重要化学指标明显升高。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。