Upland rice is not only the most suitable rice type for upland and drought areas, but also the valuable resources for drought tolerance breeding in rice.
陆稻是山区及干旱地区最适宜种植的稻种类型，亦是水稻抗旱育种的宝贵资源。
Now, this technique has been widely applied to study molecular mechanism of resistant genes, such as drought tolerance, cold endurance and disease resistance.
目前这一研究技术也已广泛应用于抗性基因如抗旱、耐低温和抗病特性的分子机理研究中。
The drought tolerance evaluation indexes were screened.
耐旱性评价指标筛选。
Soluble sugar was one of material basis of drought tolerance of these species.
可溶性糖是它们耐旱的重要物质基础之一。
The results indicated that JM treatment could enhance drought tolerance of young apple trees.
认为JM处理在一定程度上提高了苹果幼树的抗旱性。
In this research, we further report that overexpression of JERF1 significantly enhanced drought tolerance of transgenic rice.
本研究中作者进一步发现过量表达JERF1能够提高水稻的耐旱性。
Significant difference was found in the response of leaf lignin content of inbred lines with different drought tolerance to drought stress.
结果表明，耐旱性不同的自交系的叶片木质素含量对干旱胁迫的反应大不相同。
The root length is main parameter of root architecture with various important functions such as nutrient uptake, drought tolerance and yield.
而根的长度是根型的主要参数，对于养分的吸收，耐旱和作物的产量都有重要的作用。
The relationship between membrane lipid peroxidation, non-enzymatic protection system and drought tolerance of sweet potato varieties was discussed.
还探讨了甘薯膜脂过氧化及非酶促保护物质与甘薯品种耐旱特性的关系。
The improved methods for drought tolerance of rice and the utilization of upland rice germplasm in the paddy-upland hybrid rice were also discussed.
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。
Drought is one of the severe constraints on farming. One of the important pathway in the resolution to drought is to increasing the drought tolerance of crops.
干旱是限制农业生产的重要因素之一，解决干旱问题的重要途径之一就是提高作物自身的抗旱性。
As the farmland is limited and the population continuously increases at present, the object in plant breeding is to breed crop varieties with relatively drought tolerance.
在耕地有限，人口不断增长的今天，培育耐旱能力相对提高的植物品种已成为植物分子育种工程的目标之一。
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.
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。
In the past decades, considerable progress has been made in maize breeding for drought tolerance using conventional methods, but with low breeding efficiency due to various causes.
多年来，通过常规手段进行玉米抗旱育种取得了一定进展，但由于多方面原因，其育种效率没有得到进一步提高。
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.
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。
The molecular mechanism is believed to be complex because drought tolerance is the result of cooperative interactions among multiple morphological, physiological and biochemical characters.
耐旱性是众多形态结构与生理生化性质综合作用的结果，其分子机制非常复杂。
The main characteristics of drought tolerance in plants which are of the ability of dehydration tolerance with low water potential are maintenance of turgor and protoplasmic desiccation tolerance.
而低水势忍耐脱水的植物则是以保持膨压和原生质忍耐脱水为其主要特征。
Drought tolerance mechanism of crops, the reaction of physiology biochemistry and the changes of ultrastructure under water stress were reviewed in this article.
综述了作物的耐旱机制、水分胁迫下的生理生化反应及超微结构变化的研究进展，并指出了今后需要进一步研究的问题。
The order of the influence of water stress on dry matter accumulation was: Yedan 13> Yuyu 22> Yedan 2, while the drought-tolerance order is: Yedan 2> Yuyu 22> Yedan 13.
耐旱性弱的掖单13干物质积累受水分胁迫影响最大，耐旱性强的掖单2号受影响最小，耐旱性中等的豫玉22受影响程度居中。
Cultivate new variety with salt-tolerance, drought-tolerance and disease-tolerance has to be an important subject.
培育耐盐、抗旱及抗病作物新品种已经成为作物品种改良的重要课题。
Cultivate new variety with salt-tolerance, drought-tolerance and disease-tolerance has to be an important subject.
培育耐盐、抗旱及抗病作物新品种已经成为作物品种改良的重要课题。
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