抗旱

The studies were carried out within-mechanisms and characteristics of drought resistance of Casuarina species with respect to the damage and renovery of plasma mecbrance.

从细胞膜的伤害和修复角度，在温室条件下探讨4种木麻黄的抗旱机理与抗旱能力差异。

And meanwhile, the result show that, stomatal restriction was the main factor of the net photosynthetic rate's decrease in the leaves of 4 Dactylis glomerata L. when stress in slight water stress and the non-stomatal restriction was the main factor of the net photosynthetic rate in the leaves of 4 Dactylis glomerata L.

盆栽控水条件下4份鸭茅光合作用机理的研究表明，随着干旱胁迫程度的加强，4份鸭茅种质的净光合速率、蒸腾速率、气孔导度及叶绿素含量均有较大幅度的降低，其中抗旱性强的ZXY04P-201下降的速度慢，幅度小，而抗旱性差的ZXY04P-239下降速度快，幅度大。

In this research, many indices of drought resistance during germination stage and seedling stage were chosed to evaluate comprehensively the drought resistance of 20 Dactylis glomerata L. germplasm from abroad.

以国外引进的20份野生鸭茅种质资源为研究材料，通过萌芽期PEG模拟干旱试验、幼苗期温室盆栽试验，系统测定了干旱胁迫下鸭茅种质萌芽期种子萌发抗旱指数、胚根、胚芽，幼苗期幼苗株高、根冠比、叶片水分饱和亏缺、质膜透性、脯氨酸含量等形态和生理指标，全面分析了这些指标的变化规律，对所引进的20份鸭茅种质的抗旱性进行了综合评价。

The uppermost factor that effect on ability of drought resistance of Medicago falcata L. is photosynthetic rate of daily average. The role of electrical conductivity in effecting on ability of drought resistance is minimum.

影响黄花苜蓿抗旱能力最主要的因子是日平均光合速率，而电导率在影响黄花苜蓿抗旱能力的作用中最小。

The results were as follows: 1. Response of physiology indices of Medicago falcata L. to drought stress is different. There are not obvious correlation among indices and ability to drought resistance. The indices include critical water saturation deficiency, free and bound water content, tissue water, peroxidase isozyme, free proline content, chlorophyll a, chlorophyll b, total chlorophyll and chlorophyll. These indices are not fitting for assessing ability of drought resistance of Medicago falcata L..

黄花苜蓿各生理指标对干旱胁迫的响应不同，临界饱和亏、自由水含量、束缚水含量、组织水含量、过氧化物同工酶、游离脯氨酸含量、叶绿素a、叶绿素b、叶绿素总量以及叶绿素与黄花苜蓿抗旱能力之间不存在明显的相关性，不适宜采用这些指标来评价或判别黄花苜蓿材料间抗旱能力的强弱。

Physiological responses of photo synthesis indicators of young plant s of Fraxinus mandshurica in different light conditions

报道了不同品种柿树幼树抗旱能力的差异，并提出套种和地面覆盖是幼树抗旱的有效措施。

There were no significant differences in drought resistance between Selloa Pampasgrass and Chinese Pennisetum; the drought resistance of Selloa Pampasgrass was stronger than Chinese Pennisetum under heavy water stress.

蒲苇和狼尾草在中度水分胁迫下抗旱性无明显差异，在重度水分胁迫下，蒲苇较狼尾草更抗旱。

The results in this study suggested it was practical to improve rice DT and identify favorable DT genes/QTLs by backcrossing and imposing critical selection on the target trait.

本研究结果说明，回交导入结合目标性状极端选择的策略改良水稻抗旱性并发掘和定位有利抗旱基因／QTL是可行的。

The ability of combating a drought is controlled by many characters of wheat could control it.

小麦的抗旱能力是受多因素控制的数量性状，抗旱能力的高低是在多种因素共同作用下的综合反映。

Compared to the low drought-resistance BL-02-329, when subjected to drought stress, the net photosynthetic rate in the leaves of high drought-resistance alfalfa, Longdong, decreased more slowly and chloroplast shape and grana structure were less affected.

相对于抗旱性弱的苜蓿，抗旱性强的苜蓿随干旱胁迫程度的加深，净光合速率下降较慢，叶绿体的外形及基粒结构受到的影响较小。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。