水势

低温胁迫对观赏柑桔CAT活性与水势的影响

Influence of Low Temperature Stress on Ornamental Orange CAT Activation and the Flow of Water

从土水势及土壤含水量等方面，初步分析了降雨灌溉入渗补给条件下土壤水分运动的规律。

From the flow of water , the water-bearing quantity in the soil , and other sides to say , it primarily analyzes regulation of water movement in the soil under the condition of rainfall irrigation and infiltration replenishment .

水势迅猛异常。

The flood roared on , swift and violent .

水势汹涌。

The current is turbulent .

水势减退。

The flood subsided .

水势有所减退。

The flood subsided ( or abated ) a little .

船老大仔细观察风头和水势。

The boatman kept a sharp eye on the wind and water .

暗呼吸及光呼吸速率与叶水势降低的关系，呈现先升高而后下降的曲线类型。

The curve pattern showed that the ratio of dark-respiration to photorespiration increased at first and decreased later on .

滴灌条件下土壤水势对萝卜N、P、K吸收的影响

Effect of soil matric potential on radish nutrient uptake

PS、PH的叶片水势高于对照。

Leaf water potential of PS and PH was lower than CK .

土壤水势、温度的变化引起膨压（ΨP）的变化，而膨压的变化又引起叶片延伸速率的变化。

The changes of soil stress and temperature bring out the changes of p , and osmotic potential also causes the change of leaf extension rate .

明显增加了花枝鲜样质量损失率和降低了水势值；进一步增高了MDA含量。

It also increased obviously flowers mass loss , decreased flower water potentials , and increased MDA content .

HB系列专用保水剂对盆栽红地球葡萄水势和丙二醛含量的影响

Effects of HB super-absorbent polymer on leaf water potential and malondialdehyde of grapevine

叶片水势-0.2MPa为ABA迅速累积的临界水势值。

The critical leaf water potential for ABA quick accumulation in leaves was about - 0.2 MPa .

NaCl胁迫对构树幼苗叶片水势、光合作用及Na~+、K~+吸收和分配的影响

Effect of NaCl Stress on Leaf Water Potential , Photosynthesis and K , Na Absorption and Distribution of Broussonetia papyrifera Seedlings

黎明前叶水势（ψl~（pre））开花期低谷十分明显，与土壤水分动态变化不一致；

The pre-dawn leaf water potential at anthesis stage , declined sharply , and was inconsistent with the change of soil water content .

用液氮罐带回实验室，测定组织含水量、水势、可溶性糖含量以及SOD和CAT活性。

The tissue water content , water potential and , soluble sugar , as well as SOD and CAT activity of those samples were determined , respectively .

MD和SD处理显著降低了中午（11：30）的叶片水势。

The main results are as follows : 1 . Both MD and SD significantly reduced mid-day ( 11:30 ) leaf water potential .

试验用7种浓度的PEG溶液来创造大豆种子吸水的不同水势环境。

The PEG solutions of 7 concentrations were uesd to form the various water potential environments in which soybean seeds imbibed in the experiment .

午后叶水势（ψl~（mid））表现为前期低中期高后期渐降的变化特点，不同水文年型间存在差异。

The mid-day leaf water potential showed low in early period , high in middle and gradually decline in late , and varied with years .

与WT相比，土壤水势为0kPa时，4个转基因品系的产量高出5.1%&25.9%；

In contrast with WT , the grain yield of the four transgenic lines was increased by 5.1 % to 25.9 % .

结合酱用番茄CAP、叶片的气孔导度和水势等生理指标可为番茄高产水分调控机理提供科学依据。

Combining with the physiological index of CAP , stomatal and water potential can give some scientific theories to the basics of water control for high yield processed tomato .

油松人工林SPAC水势梯度时空变化规律及其对边材液流传输的影响

Water potential and its impact on sapwood flow velocity

采用配置不同浓度的PEG（聚乙二醇）溶液，对银合欢种子萌芽进行人工水分胁迫处理。结果表明：银合欢种子发芽过程的水势范围为0~-0.4Mpa；

Seeds of Leucaena Leucocephala were treated by the different concentrations of polyethylene glycol ( PEG ) to investigate effects of water stress on its germination .

水势对RPMP、MDA含量、超氧离子和SOD活性的弹性系数处于负效应阶段。

The effects of water potential on productive elasticities of RPMP , MDA , superoxides and SOD were in negative stage .

CWSI与叶水势之间呈明显的负相关关系。

There is obvious negative correlation between CWSI and leaf water potential .

结果表明，相对叶绿素含量、叶绿素荧光效应（Fv/Fm）值、叶水势、IAA值降低；相对电导率、脯氨酸含量和SOD活性上升。

The results showed that relative chlorophyll content , Fv / Fm , water potential and IAA content decreased and relative conductivity , free praline content and SOD activity increased .

复水后，根系水导呈现缓慢&慢速的恢复趋势，Pn、Gs、Tr、叶片水势随着根系水导速率的增加而逐渐恢复；

After rehydration , Lpr recovered slowly . Pn , Gs , Tr and leaf water potential increased and Ci decreased gradually with the recovery of Lpr .

黄土高原半干旱区沙棘林SPAC水势时空变异

Spatial and Temporal Variations on SPAC Water Potential of Seabuckthorn Stands in Semi-arid Region of the Loess Plateau

地下水位2.91~3.33m时，叶水势的日最低值为-2.61（Mpa）和日均值为-1.62（Mpa）。

When the ground water level range is 2.91 ~ 3.33 m , the diurnal minimum leaf water potential and the diurnal mean value are-2.61 ( Mpa ) and-1.62 ( Mpa ) .