查询词典 leaves

As material, The changes of the contents of chlorophylls, MDA, praline and the activity of SOD of I. pseudacorus L. leaves were studied with different Pb concentration and different treatment time by sand culture. The results showed that the contents of chlorophylls in the leaves of I.

为材料，采用沙培方法，对不同Pb浓度(0、2、4、6、8、10mmol/L)和处理时间(7、14、21、28d)胁迫下植物的叶片叶绿素、丙二醛和脯氨酸含量以及超氧化物歧化酶活性的变化进行了研究。

The university leaves south Bai Changhong of prexy of contemporary and long-range education points out, the university leaves to have fine pedagogic team south, develop contemporary and long-range education to have an advantage quite.

南开大学现代远程教育学院院长白长虹指出，南开大学拥有优秀的教师队伍，发展现代远程教育比较有优势。

There was a little difference betweenphotosynthesis characteristic of the two varieties,response of Jiamusi to low temperature andpoor light was more sensitive than that of Longjiao No.2 and decreased pronouncedly withdecreasing light.6.EC and MDA of pepper leaves increased under low temperature and poor light,therewere no significant differences between them with decreasing light at 21-23℃/8-10℃,butthey were increased dramatically at 15-20℃/5-6℃.So we can speculate that lowertemperature was the direct reason resulted in cell membrane lipid peroxidation.7.No significant difference of SOD activity was observed under suboptimal temperatureand poor light21-23℃/8-10℃;150μmol·m~(-2·s~(-1),but SOD and POD activity substantiallydeclined with lowering temperature and light as well as treatment time.8.Under suboptimal temperature and lower light,proline accumulated to increaseosmotic regulation capacity and alleviate chilling damage.Soluble carbohydrate of pepper leaves decreased progressively and significantly with decreasing temperature and lightintensity as well as longer treatment time.So we think that synthesis and transport ofphotosynthetic product were inhibited by low temperature and poor light as solublecarbohydrate was important component of photosynthetic product.

两个供试辣椒品种之间的光合特性略有差异，佳木斯对低温弱光的反应比陇椒2号敏感，尤其随光照降低，其光合作用显著降低。6、低温弱光胁迫下，辣椒叶片的相对电导率和丙二醛含量都有不同程度的提高，在偏低温下，随着光照减弱，相对电导率和丙二醛含量差异不显著；在极端低温下，随着光照进一步减弱，相对电导率和丙二醛含量明显提高，随着处理时间延长，同一温度下，随着光照降低，叶片丙二醛含量也显著增加，由此可初步判断，低温是导致细胞膜脂过氧化的直接原因。7、经偏低温较弱光21～23℃／8～10℃、150μmol·m~(-2·s~(-1)处理后，辣椒叶片的超氧化物歧化酶活性变化与对照无显著差异，但随着温度、光强的逐步降低和处理时间的延长，SOD、POD活性显著降低。8、在偏低温较弱光下，辣椒能积累更多的脯氨酸，增强渗透调节，减轻低温冷害。

When the pressure chamber a'nd the thermocouple psychrometer are used to determine water potential of wheat and corn leaves, the values of water potential are basically in agreement, but when they are used to determine water potential of cotton and popular leaves, the values of wheat potential are greatly different, when the dye method is used to deter...

染色法测定玉米叶水势，在高水势时其值比热电偶低，低水势下比热电偶高。虽然三种方法测定值不完全相同，但均随叶片脱水而变化。因此可用它们测定不同条件下叶片水势值的相对变化。

The total DNA has been extracted from the fresh leaves of 4 medicinal species of pteridophyte with CTAB, SDS, to compare their effects on DNA extraction. The result shows that the optimum preparation method obtained to extract high-quality DNA lays theoretic and practical base for PCR amplification and primer design, for filtrating related gene of the active elements from leaves of the four pteridophytes.

以四种药用蕨类的叶片为材料，采用改进的CTAB法、SDS法分别对四种蕨类进行了总DNA提取效果的比较分析，结果表明，通过实验获得最佳的DNA提取方法，为PCR扩增，引物设计，为筛选四种药用蕨类中的活性成份的相关基因奠定理论和实践基础。

Young branches, leaves, and inflorescences with purple-brown or purplish waxy stellate pubescence, older leaves glabrous.

幼枝，叶和花序具紫褐色或带紫色腊制的星状的短柔毛，老叶无毛。 9 C。 purpurascens 淡紫毛巴豆

Under 140 mmol/L NO3(superscript -) treatment, putrescine in leaves were significantly lower than control, but the ratio of/Put in both leaves and roots were remarkably higher than control.

叶片中Spm和Spd及根中Spm含量在一定浓度范围内，均随NO3浓度的增加而升高，当NO3浓度高于140 mmoL/L时，其含量反而开始降低；叶片中Put含量均明显低于对照。

Result The results showed that it has the characteristics of good sealing, easy connecting, simple and practical use and rapid time-saving, and the effects are good to measure photosynthetic characteristics of Ranunculus ternatus Thunb. using open measurement pattern. It solved problems that the original leaf chamber groups had large room so the petiole was broke easily when the leaves were clamped and the leaves growing attaching land are measured difficultyly after leaf chamber groups and photosynthesis instrument was assembled.

结果］结果表明，这种叶室密封性好，接驳容易，简单实用，操作方便，快速省时，采用开路测量模式测量猫爪草光合特性效果良好，解决了原配叶室存在叶室较大，夹住叶片时极易折断叶柄及叶室和光合仪组装完成后难以对贴地生长叶片进行测量等问题。

The fermented leaves are then dried with a hot-air blower until they become rolled-up black leaves .

发酵过的叶子被热鼓风机吹干，直到变成卷曲的黑色叶子。

Yellow the leaves of the rowan above us, and yellow the wet wild-strawberry leaves.

被染黄的山梨树叶在我们的头顶上，潮湿的野草莓叶也泛黄。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。