Effect of NPK Spray Formulation on Growth of Two Cultivars of Orchid (Mokara Sp.)

Abstract

A pot experiment was conducted at Plant Breeding and Biotechnology Laboratory of Agrotechnology Discipline, Khulna University, during the period from Yellow Anne) were used as treatment variables. Layout system was Completely Randomized Design (CRD) under factorial arrangement with three replications. Spray formulation had significant influence on growth of the two cultivars tested. Significantly highest plant height was obtained (39.83 cm) at 290 DAP from Mokara Diehard Red Variety with spray formulation 3 compared to other spray formulations. Highest leaf area index (0.16) was obtained from Mokara Diehard Red Variety with spray formulation 3 at 290 DAP mainly due to increased number of leaf and total leaf area. Mokara Diehard Red cultivar with spray formulation 2 enhanced plant growths and resulted greater leaf number (21.33) and leaf length (26.83 cm) to other cultivars cultivated. Plant height as well as other growth parameters was gradually increased due to suitable treatment combination. Results of the study revealed that spray formulation 3 would be suitable for Mokara Diehard Red cultivars cultivation under pot condition.

Effect of different concentrations of selected liquid fertilizers on acclimatization of weakly grown <i>in vitro</i> plantlets of <i>Anthurium andraeanum</i> L.var. ‘Lalani’

“…Foliar application of nutrients could enhance the root growth (Younis et al, 2013). Foliar spraying of nutrients enhances the growth and quality of orchids (Ali et al, 2013). Anthurium is also an epiphytes and prefers foliar application of nutrients as Orchid.…”

Prior fertilization enables higher survival of relocated terricolous orchids?

“…The fertilized treatment with 75% weekly Sarruge solution provides good vegetative development of Dendrobium nobile plants, being indicated for the optimization of commercial scale production of this species. Orchid fertilization based solely on different NPK formulations are the most commonly used by commercial producers (Campos 1998;Monda et al 2014;Ali et al 2014). A previous study showed that phosphorus is involved in root formation and that plants grown in the presence of high concentrations of this nutrient presented higher auxin concentrations in the apical root meristems and higher cellular mitotic activity (López-Bucio et al 2003).…”