The major driving force for transport of water through xylem during the day is _________ and during the night, it is ________.

The major driving force for transport of water through xylem during th

1.	The major driving force for transport of water through xylem during the day is _________ and during the night, it is ________.
Answer» The major driving force for transport of water through xylem during the day is _________ and during the night, it is ________.