humic substances as an active part of soil organic maters can improve germination and seedling properties, plant establishment and plant growth. in order to study the effects of different concentrations of humic and fulvic acids on germination and seedling properties of two varieties of triticale (triticosecale hexaploide lart.), a factorial experiment based on a completely randomized design wi...

of synthetic growth regulator treatmenits on the level of free endogenous growth substances in plants. Ann. Botany N.S. 20: 439-59. 6. AUDUS, L. J. AND R. THRESH. 1956. The effects of synthetic growth substances in the level of endogenous auxins in planits. In: The Chemistry and Mode of Action of Plant Growth Substances. Wain and Wightman, ed. Butterworths, London. p 248-52. 7. KLEIN, A. 0. AND...