Effect of Benzyladenine and Gibberellic Acid on Dormancy Breaking, Growth and Yield of Gladiolus Corms Over Different Storage Periods

A study was conducted to determine the optimum concentration of benzyladenie(ba) and gibberllic acid (ga3) to break the dormancy of gladioluscorms in relation to storage period and to find out the effect of ba and ga3 ongrowth and development of gladiolus corm and cormels. the effect of ga3 ondormancy breaking was most pronounced in the 100 ppm treatment being 26.93days while in the water control took 49.60 days. among different levels of ba,dormancy breaking was comparatively earlier by 29.60 days when treated with50 ba. considering storage periods, corms stored for 30 days followed bydifferent growth regulator treatments sprouted 11.63 and 21.24 days earlier than75 and 90 days stored corms, respectively. corms treated with 75 ppm ga3 andstored for 90 days produced the maximum percentage of spikes (56.9%) whereas90 days stored corms treated with 125 ppm ba produced the highest number ofplants (2.41) and corms (2.50) hill-1. the corms treated with 100 ppm ga3 andstored for 90 days produced the heaviest (21.50 g and 18.82 g, respectively) andlargest (4.46 cm and 4.17 cm, respectively) corms.