Journal of the American Society for Horticultural Science · 1983 · 31 citations · 0 references
AgriculturePlant BiologyPlant SciencesCrop PhysiologyPlant EcophysiologyPlant PhysiologyEthylene BiologyEthylene PhysiologyRoot CropsRoot PhysiologyRooting PhysiologyWound ResponseEthylene ControlEthylene In Root DevelopmentEthylene Regulation Of RootingLight Effects On RootingRooting InductionRooting Of CuttingsRooting Of Stem CuttingsRooting Stimulants
Abstract Rooting of light-grown cuttings of mung bean [ Vigna radiata (L.) R. Wilcz.] was stimulated by wounding and by the ethylene-releasing compound (2-chloroethyl)phosphonic acid (ethephon) at 0.1, 1.0, and 10.0 mg/liter with a maximum response at 1 mg/liter. The inhibitor of ethylene synthesis, aminoethoxyvinylglycine (AVG), at 10 µ m , significantly decreased root number in wounded cuttings, but ethephon overcame this inhibition. Rooting in wounded cuttings was stimulated by indolebutyric acid (IBA) at a concentration of 5 × 10 −6 m but root numbers decreased by 56% with AVG + IBA. Application of ethephon or IBA, and extensive wounding, caused an upward redistribution of roots away from the base of the cuttings.