Plant growth regulator mediated biochemical changes in corms of gladiolus (Gladiolus grandiflorus L.) cv. American beauty

Abstract

Gladiolus is one of the most popular cut flowers for its majestic spikes. An experiment was conducted to study the effect of Gibberellic acid (GA3), N6- Benzyl adenine (BA) and Triacontanol each at 25 ppm, 50 ppm and 100 ppm on the biochemical changes in the corms of Gladiolus (Gladiolus grandiflorus L.) cv. American Beauty following RBD with 10 treatments replicated thrice grown at Uttar Banga Krishi Viswavidyalaya, India from October, 2013 to April, 2014. Application of GA3 @ 50 ppm increased non-reducing sugar content of corms (0.665 mg/ g of fresh weight) and corm protein content (6.02 mg/g of fresh weight) whereas, Triacontanol @ 50 ppm improved phenol content of corms (1.07 mg/g of fresh weight) but, Triacontanol @ 100 ppm improved the reducing sugar content (4.089 mg/ g of fresh weight) and enzyme activity of corms (2.73 ∆490nm/min/g fresh weight).