The Reversal of Scotoactive Stomatal Behavior in some Woody Weeds by Paraquat and 2,4,5-T

A typical scotoactive stomatal behavior was noticed in Carissa spinarum L.; Gymnosporia emarginata Laws; Maba buxifolia Cl.; Flacourtia sepiaria Roxb.; Dodonaea viscosa L. and Randia malabarica Lamk. This stomatal behavior was reversed artificially by foliar application of paraquat (1,1′-dimethyl-4,4′-bipyridinium ion) at 100 ppmw or 2,4,5-T [(2,4,5-trichlorophenoxy)acetic acid] at 2000 ppmw. The size of the stomatal aperture, stomatal...