Water use efficiency increased under slight water stress.

轻度水分胁迫下水分利用效率较高；

Water stress promoted allocation of photosynthetic product to the seed.

因此,水分胁迫促进了光合产物向籽粒的调运.

The soil water stress leads to the increase in stoma density.

水分胁迫使气孔密度增加；

Therefore, the mild water stress can be allowed in the jointing stage of winter wheat, and grain-filling stage should try to avoid any degree of water stress.

因此，冬小麦拔节期允许轻度的水分胁迫，而灌浆期则应尽量避免任何程度的水分胁迫。

The result showed: In water stress, the Pn (photosynthetic rate) decreased.

结果表明，水分胁迫使欧李光合速率下降。

The responses of tomato seedling to water stress using tensiometer were studied.

水分胁迫对番茄幼苗的生长有严重的抑制作用。

The proline accumulated and content of free amino acid increased under water stress.

在水分胁迫下马铃薯脯氨酸积累,游离氨基酸含量增高.

Effects of water stress on growth and yield of rice were studied in jointing-booting stage.

试验研究了拔节孕穗期水分胁迫对水稻生长发育及产量的影响。

Effects of water stress on growth and yield of rice were studied in jointing - booting stage.

试验研究了拔节孕穗期水分胁迫对水稻生长发育及产量的影响.

The effect of different N and P levels on yield under water stress were studied.

研究了在水分胁迫的条件下不同氮、磷组合对小麦生长发育的影响。