Question

why water never limiting factor for photo

Accepted Answer

stoma closes during dry spells (limit water loss), limiting CO2 diffusion, and so dec CO2 fixation, meaning light independent photo stops, for water potential to become low enough for water to be limiting factor, stoma already closed and photo stopped.

Front	why water never limiting factor for photo
Back	stoma closes during dry spells (limit water loss), limiting CO2 diffusion, and so dec CO2 fixation, meaning light independent photo stops, for water potential to become low enough for water to be limiting factor, stoma already closed and photo stopped.

Water Limiting Photo Stoma Co2 Factor Closes Dry