Effect of Paclobutrazol and GA4+7 on flowering- fruiting of dragon fruit [Hylocereus costaricensis (Web.) Britton and Rose]

Abstract

: The present experiment identified the synergistic effect of Paclobutrazol and GA₄₊₇ with different concentrations on the flowering- fruiting of dragon fruits. This study was conducted in completely randomized block design. Dragon fruit plants were treated with different concentration of Paclobutrazol and GA₄₊₇ during the field condition. The results indicated that the Paclobutrazol treated with 400mg significantly influenced on the early flower bud initiation; increase the number of flowers and to increase the number of flushes. However, GA₄₊₇ @200mg had better result on to reduce the number of flower drop. The results showed that Paclobutrazol treated with 400mg is the most effective treatment than GA₄₊₇ for improving the number of flowers, number of flushes and early flowering