培育抗旱品种是降低由于干旱导致减产的最重要也是最为根本的途径。
Breeding for drought-tolerant variety is the most important way to alleviate yield reduction caused by drought stress.
抗旱品种在复水条件下比正常供水时具有更大的根系表面积和最大的根系伤流量；
The varieties with drought resistant had larger root area and the biggest demage flow rate of root system in comparing rehydration condiction with normal moisture condiction.
土壤干旱胁迫导致游离脯氨酸大量累积，抗旱品种(种)比不抗旱的累积量要大。
Under soil drought stress conditions, drought - resistant varieties (species) accumulated comparatively higher free proline content than those in the less drought - resistant varieties.
结果表明，在正常供水条件下，抗旱品种表现为叶片较窄，叶片叶绿素含量较高，叶片上下表皮刚毛较多；
The results showed that the varieties with drought resistant had narrower leaf, higher chlorophyll content of leaf and more chaeta in up and down epidermal of leaf.
水稻是主要粮食作物之一，干旱是限制水稻生产的主要因素之一，种植水稻抗旱品种、进行水稻节水栽培是节水农业的重要组成部分。
Planting drought resistance rice varieties and carrying out water-saving cultivation are the important components of water-saving agriculture, and the development trend of modern agriculture.
在进行抗旱品种改良的基础上，通过引进相应的栽培技术，节水种植，实现水稻旱作，并达到稳产与增产的目的，是抗旱性研究的战略目标。
The strategy of drought resistance studies is developing drought resistance variety and introducing appropriate cultivation technology to increase rice yield as well as save water resources.
另外，发现在同一物种不同抗旱性品种间也存在渗透调节和抗氧化上的差异，一般抗旱品种较抗旱性差的品种渗透调节能力和抗氧化能力更强；
We also found the difference in the osmotic tolerance and antioxidant ability between different genotype in sorghum or in maize, and the same mechanism change between sorghum and maize.
我国干旱和半干旱地区面积约占全国土地面积的1/2，同时，随着全球温室效应的增强，对抗旱品种的选育将是未来品种的选育的一个重要方面。
China's arid and semi-arid land area accounting for about 1/2, while, with the enhancement of Greenhouse effect, the of drought-resistant varieties breeding will be an important aspect in the future.
随着抗旱作物新品种的不断开发，基因工程也可能提供部分解决方案。
Genetic engineering also may provide a partial solution, as new strains of drought-resistant crops continue to be developed.
在那里，主食是小米，豇豆以及一种称为苞米的抗旱高粱品种。
There, the staples are millet, cowpeas, and a drought-resistant variety of sorghum known as guinea corn.
他的最终目标是创造出“绿色超级稻”：一个有着高产量的理想的品种，只需很少的农药和化肥，抗旱，充满营养，味道甚佳。
His ultimate goal is to create "green super rice" : an ideal variety that has high yields, needs less pesticides and fertilizers, resists drought, is packed with nutrients, and tastes great.
蒙山脆枣为酸枣向栽培枣过渡的中间类型，在蒙阴当地栽培条件下，产量明显高于其它品种，表现出较好的抗旱性。
Mengshancui jujube was the middle type between wild jujube and Chinese jujube, its drought resistance abilities and yields in Mengyin were higher than other varieties.
此外，水稻品种具有抗旱、涝、倒伏和发芽早的特征。
Also rice variety was strong for drought, flood, and wind damage and sprout early.
结果表明：鉴定甜瓜品种抗旱性，苗期可应用株高胁迫指数（PHSI）、干物质胁迫指数（DMSI）、叶片水分饱和亏、电解质渗出率、干旱处理伤害率等指标。
The results showed that PHSI, DMSI, WSD, electrolyte transudation ratio and injury ratio under drought treatment could be used to appraise the drought resistance of melon species at seedling stage.
但不同的玉米品种在抗旱性上存在极显著差异，抗旱性强的品种在水分胁迫下仍然保持较高的发芽势和发芽率。
There were obvious difference on drought resistance among the varieties, higher drought resistance varieties kept higher vigor of germination and germination (capacity).
可将4叶期和分蘖盛期的发根力作为选育或筛选杂交中稻强抗旱性品种的参考指标。
The rooting ability at 4 th leaf and at top tillering can be used as selection criterion in rice breeding for drought resistance.
干旱使叶片细胞束缚水含量增加，抗旱力强的品种(种)较抗旱力弱的含量高。
Cellular bound water content was increased and higher content of cellular bound water was found in drought - resistant varieties (species).
叶片光合速率随土水势的下降而减小，抗旱性品种减小的幅度小于抗旱性较差的品种。
The photosynthetic rate of the leaves declined with the decrease of soil water potential, but drought-resistant varieties reduced less than drought-sensitive ones.
以此对21个苜蓿品种抗旱性进行了聚类分析，并将不同苜蓿品种划分为高、中、低抗三个类型。
By cluster analysis 21 alfalfa varieties were classified into three types: high drought-resistant varieties, medium drought-resistant varieties and low drought-resistant varieties.
最后，通过隶属函数法综合评价被试品种的抗旱节水性。
Finally, a comprehensive evaluation on drought resistance of different cultivars was given according to subordinate function values analysis.
对优质冬小麦品种烟优361在旱地条件下的抗旱生理特性进行了比较研究。
Comparative study on physiological traits of drought resistance for good quality bread wheat cultivar Yanyou 361 was performed under dryland condition.
干旱是影响玉米生产的最主要非生物胁迫因素，解决这一问题的有效策略是选育并推广抗旱性品种。
Drought is the most important abiotic factors limiting maize production. The effective approach to solve this problem is breeding and popularizing variety for drought tolerance.
初生根解剖结构分析表明，抗旱性强的品种表现为初生根直径大，皮层厚，中央大导管直径小。
The anatomy structure photos of primal root showed the stronger drought-resistance varieties had the bigger diameter of primal root, the thicker cortex and smaller diameter of the main xylem vessel.
采用聚乙一醇（PEG6000）渗透胁迫的方法，研究了两个不同抗旱性小麦品种对渗透胁迫反应的差异性。
The reaction difference of two different drought-resistance wheat varieties to PEG6000 penetration stress was studied.
建国前虽推广13个抗旱丰产类型品种，但均不抗秆锈病，致使秆锈病严重，威胁小麦生产。
Before 1949, 13 wheat varieties were released but they are susceptble to stem rust, so wheat production here strained by the disease.
以上结果表明，蜡质能够提高小麦的抗旱性，旗叶蜡质含量可以作为抗旱小麦品种的选择指标。
These results indicate that cuticular wax content in flag leaf is closely related to drought tolerance and can be used as a physiological indicator of drought resistance in wheat selection.
在旱棚盆栽条件下研究了水分胁迫对抗旱性不同的花生品种生理特性的影响。
The effect of water stress on physiological character in different drought resistant peanut varieties was studied in pot culture with rainproof shelter.
还对栽培稻品种的抗旱性改良方法以及陆稻种质资源在水、陆杂交稻中的利用进行了探讨。
The improved methods for drought tolerance of rice and the utilization of upland rice germplasm in the paddy-upland hybrid rice were also discussed.
结果表明，利用巨穗小麦种质为基础培育的品系较当地生产上大面积种植的栽培品种有良好的抗旱特性，巨穗小麦种质有可能作为小麦抗旱节水育种的良好遗传资源。
The results showed that these new wheat lines present high resistance to water stress. Giant spike wheat germplasm could be used as drought resistance gene resource in wheat breeding.
上述研究为草地早熟禾抗旱耐盐新品种的选育提供了理论依据和植物材料。
And this study also provided theoretical evidence and plant materials for breeding the new Kentucky bluegrass varieties tolerant to drought and salt.
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