EFFECT OF FOLIAR APPLICATION OF NITROGEN WITH OR WITHOUT GROWTH REGULATORS ON DEADLY NIGHTSHADE PART II: TROPANE ALKALOIDS CONTENT AND YIELD
The ongoing investigation was designed to study the effects of foliar application of nitrogen with or without one of growth regulators such as benzyl amino purine or gibberellic acid on chemical contents and yield of tropane alkaloids of deadly nightshade (Atropa belladonna) plants. This investigation was carried out in the 2008/2009 season in a factorial experiment in randomized complete block design with three replications. The maximum contents of hyoscyamine, scopolamine, atropine, total tropane alkaloids and total alkaloid yield in aerial parts and roots were achieved when plants were sprayed with 2,000 mg N L-1. Benzyl amino purine at 50 mg L-1 gave the highest hyoscyamine, scopolamine and atropine contents in the aerial parts and roots. This treatment increased total alkaloid contents of aerial parts and roots in treated plants. Gibberillic acid application reduced tropane alkaloid yields significantly. Ammonium sulfate at 2,000 mg N L-1 plus BAP at 50 mg L-1 gave the highest contents of hyoscyamine, scopolamine, atropine and total alkaloids in aerial parts and roots. Total alkaloid yield was also the highest in both aerial parts and roots in treated plants with nitrogen compared to the untreated control plants.
Mohammad Ali, S.O. (2014). EFFECT OF FOLIAR APPLICATION OF NITROGEN WITH OR WITHOUT GROWTH REGULATORS ON DEADLY NIGHTSHADE PART II: TROPANE ALKALOIDS CONTENT AND YIELD. Acta Hortic. 1023, 221-227
atropine, BAP, belladonna, GA3, hyoscyamine, nutritional spray, scopolamine