Fig. 7From: Linking exogenous foliar application of glycine betaine and stomatal characteristics with salinity stress tolerance in cotton (Gossypium hirsutum L.) seedlingsRelationship between endogenous GB content and (a) stomatal density (SD), (b) stomatal length (SL) and (c) stomatal width (SW). CK = control; T1 = 2.5 mM GB; T2 = 5 mM GB; T3 = 7.5 mM GB and T4 = 150 mM NaCl. Data are Mean ± standard deviation (n = 3), * and ** indicate significance levels of P < 0.05 and P < 0.01, respectivelyBack to article page