A) High concentration of \[{{K}^{+}}\] in guard cell
B) High light intensity
C) High concentration of IAA
D) High concentration of ABA
Correct Answer: C
Solution :
Stomatal movement is affected by light, \[C{{O}_{2}}\] concentration, pH of guard cell, \[{{\text{H}}^{\text{+}}}\text{,}{{\text{K}}^{\text{+}}}\text{C}{{\text{1}}^{\text{-}}}\] and organic acids, temperature abscissic acid and water stress.
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