永久萎蔫

出现表观永久萎蔫症状T1早于T2和T3，高羊茅早于钝叶草；

Emergence of apparent permanent wilting symptom in Tl were earlier than that in T2 and T3 , and that in tall fescue were earlier than that in Auguestinegrass ;

其永久萎蔫系数均低于3%。表明这二种枣树的抗旱能力较强。

Permanent wilting coefficient of two jujube varieties both lower than 3 % , jujube has higher drought capacity .

NaCl处理的种子萌发籽苗受伤害最重，其籽苗叶片渗漏质电导率最大，感染白粉病最重，但无永久萎蔫现象。

The plantlet treated with the NaCl was injured most badly , the conductivity of the leaf was biggest , the powdery mildew was severe , but the permanencies wilting did not happen .

果实萎蔫是指在持续高温干旱、土壤水分不足的情况下，果实水分蒸腾量大于吸收量而产生的失水变软，果面表皮皱缩现象，分为暂时萎蔫和永久萎蔫。

The fruit wilting was the fruit wall 's crumpling phenomenon when the fruit skins lose water and became soft under the conditions of continued high temperature , drought , and soil water insufficiency , which can be divided into the temporal wilting and the permanent wilting .

在－38kPa开始水分胁迫，临时性萎蔫点在－50kPa，永久性萎蔫点在－58kPa；

Water stress beginning at - 38 kPa , temporary wilting point was - 50 kPa , permanent wilting point was - 58 kpa .

病情进一步严重时，叶色由绿渐变黄，叶片变小，发生永久性萎蔫，最后叶片自下而上逐渐干枯，直至全株死亡。

As the disease becomes heavy , the leaves colour turns yellow from green gradually . The leaves turn small . The wilting can not recover at night . At last , the leaves dried-up from the top to the bottom till the death of the whole plant .