Different levels of fertigation, growth regulators and their interaction effects on floral characters of rose cultivars under polyhouse condition

Abstract

Increased concentration of gibberellic acid combined with 120 percent of recommended dose of fertilizers as fertigation significantly increased the plant height, mean number of branches per plant, number of leaves per plant and internodal length in both the seasons respectively. Though all the varieties positively responded for the treatments but variety Grand gala produced significantly superior quality of growth characters when plants were treated with 120 per cent of fertigation in combination with 300 ppm of GA3.