查询词典 drought

As for Leucaena leucocephala seedlings, MDA is not the main product of lipid peroxidation and Tephrosia candida seedlings do not only rely on SOD and POD action to reduce active oxygen content. Through comprehensive analysis on water holding capacity of leaf, cytomembrane permeability, MDA content and SOD, POD activity, Dodonaea viscosa seedlings show the highest drought resistance, then Leucaena leucocephala, Tephrosia candida the last.

干旱胁迫对银合欢膜系统损伤生成的主要降解产物不是MDA；山毛豆清除活性氧毒害作用主要不是通过SOD和POD的作用；通过叶片相对保水力测定及膜透性、MDA相对含量、酶活性变化情况的分析，3个树种中坡柳耐旱性最强，其次为银合欢，山毛豆居后。

Drought and water shortage are worldwide problems in 21st century. Controlling of soil water evaporation and collecting of aerial water have become significant approaches to improve water shortage in droughty region.

干旱缺水已成为21世纪和未来的世界性难题，减少土壤水分蒸发、收集空气中的水分，已成为缓解干旱、半干旱地区水资源紧缺的重要途径。

The yield of wheat is greatly affected by the environmental stresses like low temperature, drought salinity salt and alkaline. More than half of the fields in China is droughty, half-droughty or salty and alkaline.

在我国干旱、半干旱地区和盐碱地区约占国土面积的一半以上，仅次于病虫害造成的损失，严重制约着这些地区的粮食生产。

growth of potted seedlings of duchesnea indica and parthenocissus quinquefolia at different irrigation levels was studied by weighting. their drought-resistance was analyzed by difference significance to guide landscape irrigation management.

小 摘要：采取盆栽称质量法研究了蛇莓和五叶地锦在不同灌溉量处理下的生长状况，通过差异显著性分析确定其耐旱水平，以期为园林灌溉管理提供指导。

The main limitation element that climate drought and edaphic barren are development of production of Shanxi province agriculture all the time.

气候干旱和土壤瘠薄一直是山西省农业生产发展的主要限制因素。

Meanwhile, Elaeagnus angustifolia L. had good saline-alkali tolerance, drought resistance and flood resistance.

同时沙枣在吉林地区同样具有较好的抗盐碱、抗旱涝性。

Physiological indexes of drought-resistance, namely the four water parameters of osmotic potential at the turgor loss pointπ(subscript p, water potential at the water saturation point (π0), bulk modulus of elasticity, and the rate of bound water in cells V(subscript p/V0, for the three fire resistant trees, Schima superba, Cyclobalanopsis glauca, and Elaeocarpus glabripetalus, were studied using the pressure-volume technique.

应用压力－容积分析技术测定了木荷Schima superba，秃瓣杜英Elaeocarpus galbripetalus和青冈Cyclobalanopsis glauca等3个防火树种春季、夏季和秋季的水分特征参数，即初始质壁分离点渗透势π，饱和含水量时的最大渗透势π0，细胞弹性模数ξ，细胞质壁分离时的共质体水体积量与饱和时共质体水体积量之比V/V0。

The seedlings of six wild species in Elymus were treated with drought stress, and their height, MDA, proline, and chlorophyll content were investigated.

采用干旱胁迫处理不同来源的披碱草属六种野生牧草幼苗，对其生长高度、相对含水量、丙二醛、脯氨酸和叶绿素含量进行测定。

We used maize seedlings (Zea mays L.) and tobacco (Nicotiana plumbaginjfolia L.) as material. In the first section, we have investigated cold- shock-induced chilling, drought, heat and salt stress resistance in maize seedlings. In the second section, by modifying the Ca~ and CaM levels, we have tried to establish the involvement of calcium messenger system in the cold-shock-induced cross adaptation. In the third section, we have tried to establish a transgenic tobacco system expression CaMICaMIBP genes, so that the others can use it to investigate the process of physiology and biochemistry which endonuclear and cytosolic calmodulin have taken part in.

以玉米幼苗和烟草为实验材料，本文第一部分通过将玉米幼苗进行短期冷驯化后对冷胁迫、干旱胁迫、热胁迫及盐胁迫的影响，试图证明玉米幼苗中交叉适应现象的存在及其机理；第二部分通过外源修改Ca~(2+)和CaM水平，研究了钙信使系统在交叉适应现象中的可能作用；第三部分通过建立诱导性表达CaM/CaMBP转基因烟草体系，便于研究受细胞质CaM和细胞核CaM调控的各种生理生化过程。

Approaching of osmotic adjustment in Epacris obtusifolia, Eucalyptus obtusifolia and Eucalyptus gummsfelia was made by pressure-chamber technique under drought stress.

用P-V曲线技术研究了三种海滨木本植物在干旱胁迫条件下渗透调节的能力。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐