GK
BIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
transpiration
|
|
|
photosynthesis
|
|
|
absorption
|
|
|
None of these
|
Detailed explanation-1: -If there is excess water loss from plant during transpiration, than is available in soil, the leaf cells lose turgidity and leaves droop down. This is called as wilting of plant. Thus, excessive transpiration causes plants to wilt.
Detailed explanation-2: -The collapse of leaves due to loss of water (flaccidity) is called wilting. It may be caused due to excessive transpiration, blocking of xylem elements or some diseases.
Detailed explanation-3: -Wilting can be caused by drought or waterlogged soil Plants wilt when roots are unable to supply sufficient moisture to the stems and leaves. Wilting for short periods of time does not harm plants. Sometimes a plant wilts on a hot day because moisture is evaporating from the leaves faster than the roots can take it up.