Browsing by Author "Niroshika, H.A.D."

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    Use of Growth Regulators to Induce Shoot Production of Anthurium (Anthurium andraeanum)
    (Uva Wellassa University of Sri Lanka, 2013) Niroshika, H.A.D.; Jayasinghe, H.A.S.L.; Kularatne, M.A.; Disanayake, D.W.A.J.
    Anthurium andraeanum is an economically important tropical cut flower species belongs to family Araceae and becoming more popular in the world cut flower industry due to its high varietal diversity and long vase life (Grayum, 1990; Anonymous, 2010). Anthurium ideally suits with the Sri Lankan climatic conditions and encompasses both domestic as well as international trade. However, the absence of efficient propagation methods to produce quality planting material has become a major constraint for the small scale Anthurium growers. The conventional propagation methods such as basal suckers and stem cuttings are not efficient for the commercial production. On the other hand, tissue culture technology is not a cost effective for local growers. Different studies have shown that exogenous application of cytokinin such as Benzylaminopurine (BAP) and gibberellic acid (GA3) has a significant effect on lateral shoot production of topped plants of many species. Therefore, the ability of the Anthurium plant to produce lateral shoots through hormones stimulation was studied to disclose an efficient propagation method for Anthurium. Methodology The study was carried out inside a shade house, which had 80 % level, at Regional Agricultural Research and Development center, Makandura. About two years old uniform size Anthurium plants with stems grown up to 15 cm height. Two varieties, M30 and M36 were obtained as planting materials and the study was arranged as two experiments in variety wise. After one month of planting the top of selected plants with two to three roots were removed (topped). The remaining basal parts with three to four leaves were treated with seven different combinations of GA3 and BAP concentrations. Treatments consisted of four foliar runoff sprays of three different sole GA3 concentrations (T2, T5) on consecutive weeks and combination of those GA3 concentrations with three different BAP concentrations(T3, T4, T6, T7) on alternative weeks.