Abstract
ABSTRACTThe study evaluates the effect of various potting media, nutrition, and growth regulators on production and nutrient composition of leaf and pseudobulb of Cymbidium hybrid “Baltic Glacier Mint Ice” grown in greenhouses. The results confirmed a positive influence of growth and nutrition on flower yield of Cymbidium, with shredded tree bark+ coconut husk + brick bits giving the best flowering. A nitrogen, phosphorus and potassium (NPK) dose of 200:200:200 mg l−1 with benzyl adenine (BA) and gibberellic acid (GA3) at 50 mg l−1 was found best for growth while an NPK dose of 200:100:100 mg l−1 with BA and GA3 at 50 mg l−1 was suitable flower production of Cymbidium hybrid. Application of an NPK dose of 300:200:300 mg l−1 with BA and GA3 at 500 mg l−1 was found to be best for enhancing flowering frequency. Plants of the Cymbidium hybrid with the best flowering characteristics mostly contained significantly higher concentrations of nitrogen (N), phosphorus (P) and potassium (K) in leaves and pseudobulbs (which acts as reservoir of nutrients).
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