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严重胁迫
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  severe stress
     (3) Water stress led to decreased photosynthesis rate of P.miliaceum L., slight water stress made the photosy nth esis rate decreased by 9%~23%, while severe stress made it decreased by 30%~50 %.
     (3)水分胁迫使糜子各生长季的光合速率下降 ,其中轻度胁迫降低了 9%~ 2 3% ,严重胁迫降低了 30 %~ 5 0 %。
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     Under severe stress exports rate of 14 C assimilate in shells was highest(8\^70%),and was about two times taht of control and moderate stress.
     严重胁迫处理颖壳中14 C 同化物外运比例最高 ,为 8 70 % ,约为对照和中度胁迫处理的 2倍。
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     Meanwhile drought stress decreased the dry substances accumulation of later growth phases, severe stress and moderate stress had relatively higher dry substances accumulation at flourished flowering and early podding respectively.
     并且干旱胁迫均降低生育后期的干物质积累,严重胁迫及中度胁迫分别在开花盛期、结荚初期具有相对较高的干物质积累。
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  “严重胁迫”译为未确定词的双语例句
     In the latter, soil water was supplied in threelevels: W1 (60%~70%, water sufficient), W2 (40%~50%, light water stress), and W3(20%~30%, severe water stress).
     大田试验设 W1(60%~70%,水分充足)、W2(40%~50%,水分轻度胁迫)、W3(20%~30%,水分严重胁迫)三种水分处理;
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     ФPSII and Fv/Fm declined while NPQ, qE and (A+Z)/(V+A+Z) aswell as VDE activities increased with senescence . In general,
     严重胁迫和强光条件下,酶活性的测定值与体内的指标不一致,NPQ 、qE 和(A+Z)/(V+A+Z)依旧上升,但VDE的活性下降。
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     (5) Water stress decreased the leaf area index a t different stages, slightly stressed decreasing by 7%~12% while severely stre ssed decreasing by 21%~29%.
     (5 )水分胁迫使糜子各生长季叶面积指数降低 ,其中轻度胁迫降低了 7%~ 12 % ,严重胁迫降低了 2 1%~2 9%。
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     The correlation coefficient r=-0.529 ** under severe water stress condition;
     在严重胁迫条件下 ,二者的相关系数 r=- 0 .5 2 9* * ;
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     The qP values of Juglans regia had no significant decrease after 2~4 h within two treatments but decreased significantly after 6 h(P>0.05).
     离体6h和40%严重胁迫时下降明显(P>0.05),但降低幅度不大,分别为5.7%和4.4%。
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  相似匹配句对
     Water stress affects greatly the growth of V. faba.
     水分胁迫严重影响蚕豆的生长。
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     Among them, salt stress badly influences in the yields of the plant.
     其中盐胁迫严重影响植物的生长。
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     The loss of water and soil is serious;
     水土流失严重;
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     (3) Soil erosion by water is serious.
     水土流失严重;
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  severe stress
Under severe stress, RWC of EI leaf was significantly higher than that of EF leaf, i.e.
      
Under severe stress, EI population significantly accumulated more biomass than EF population.
      
In addition over-expression of hsp56 does not protect cardiac cells from severe stress in contrast to our previous results with hsp70 and hsp90.
      
Specifically, for hippocampal-mediated learning and memory processes, acute stress may enhance synaptic efficacy and overall learning ability, and conversely, chronic or severe stress has been shown to be detrimental.
      
In controlled environment studies water stress in alfalfa resulted in an increase in the developmental period, 134.3, 152.0, and 165.2 centigrade degree days for the control, moderate and severe stress treatments, respectively.
      
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The effects of water stress on photosynthesis and RuBP carboxylase (RubisCO) from the leaves of two cultivars of winter wheat drought resistant Shaanhe 6 and drought sensitive Zhenyin 1 were studied.

比较了两个小麦品种陕合6号和郑引1号经受不同程度的水分胁迫处理后,叶片多种光合参数:净光合速率(P_n)、气孔导度(G_s)、细胞间隙CO_2浓度(G_i)、表观量子需要量和羧化效率以及Rubis CO蛋白量与活性等的变化。在轻度水分胁迫下,叶片光合速率降低的根本原因在于气孔导度的下降;而在严重胁迫下,非气孔因素起主要作用。

The experimental result showed that physiological re-

抗旱性不同的冬小麦幼苗在渗透胁迫下叶片相对透性、Pro 含量和在总游离氨基酸中的Pro 比例均增加,但品种间变化幅度有明显差别.在严重胁迫下,抗旱性弱的品种济南13.烟农15和鲁麦5号的叶片相对透性增加大于抗旱性强的品种昌乐5号、秦麦3号和山农587;而Pro 含量和在总游离氨基酸中Pro 比例的增加小于抗旱性强的品种.叶片Pro 累积与RWC 呈显著负相关.

The effect of water stress by treating with PEG (MW 6000) solution with different osmotic potential (-0.4MPa, -1.0MPa, -1.6MPa) on the net photosynthesis rate (Pn) of leaves of popular clones are studied in growth culture chamber. As for six clones of natured-drought, they are grouped into 3 fast-and 3 slowergrowing clones according to the significant difference in growth parameter. During 24 hours of various water stress, the Pn is obviously declined. After release from the water stress, the Pn of recovery...

The effect of water stress by treating with PEG (MW 6000) solution with different osmotic potential (-0.4MPa, -1.0MPa, -1.6MPa) on the net photosynthesis rate (Pn) of leaves of popular clones are studied in growth culture chamber. As for six clones of natured-drought, they are grouped into 3 fast-and 3 slowergrowing clones according to the significant difference in growth parameter. During 24 hours of various water stress, the Pn is obviously declined. After release from the water stress, the Pn of recovery of two growth types of clones shows that all clones survive in mild (-0.4 MPa), but not in moderate (-1.0MPa) and severe (-1.6 MPa) osmatic stress at the end of two weeks. During stress and also after release of stress, the net photosynthesis rate of fast-growing clones decreased and also recovered faster than those of other slower growing clones, especially a faster-growing clone with water tolerant appearing the slowly dropping and fast recovering. Pn seems to be its significant growth contribution. This result will be helpful to identify the fast and drought tolerance clones in early-selection of poplar breeding.

不同快、慢生长型的杨树无性系幼苗,在不同渗透势溶液(PBG 6000)中经受12h、24h的轻度、中度和严重胁迫,净光合速率(P_n)均明显降低。在轻度胁迫下,快生长型杨树品种比慢生长型下降迅速;中度和严重胁迫的品种,却表现出受抗旱性强弱的差异。解除干旱处理后,P_n恢复不一。经过中度和严重胁迫的品种均难于恢复,轻度胁迫过的达正常水平。在恢复过程中,杨树各品种的P_n回升趋于稳定。与对照的P_n相比,快慢类型,表现出波动周期与其振幅(P_n回升的大小)的特征,前者P_n(如群众44)恢复周期短、振幅大、恢复快,而后者(如小叶杨)则相反。这种P_n变化趋势在抗旱强速生和抗旱差慢生的品种上表现明显,对选育抗旱速生的品种鉴定有着重要的意义。

 
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