Abstract
An experiment was conducted to determine the appropriate dose and combination of organic and chemical fertilizers and to assess the effect of bio-control agent (Trichoderma) on qualitative and quantitative characteristics of tuberose (Polianthes tuberosa L. cv. Single), including stem length, rachis length, spike length, floret number, flower yield, flower durability, number of bulb etc. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications having eight treatments as follows: T1= Farmyard manure (5 t/ha) + ¼ RDF, T2= Poultry refuse (5 t/ha) + ¼ RDF, T3= Bokashi (3 t/ha) + ¼ RDF, T4= Mustard oil cake (500 kg/ha) + ¼ RDF, T5= Vermicompost (5 t/ha) + ¼ RDF, T6= Tricho-compost (3 t/ha) + ¼ RDF, T7= Tricho-leachate (3000 L/ha ) + ¼ RDF and T8= Control (Recommended doses of fertilizer) (N150 P45 K88 S10 B1 Zn1 kg/ha). Maximum growth, yield and yield contributing characters were recorded in T6= Tricho-compost (3 t/ha) + ¼ RDF which were statistically superior to other treatments. Maximum plants emergence (93.3%) recorded in T6 (Tricho-compost + ¼ RDF). In case of plant height, number of leaves per plant, plant spread, days to flowering, number of florets, flower yield, bulb production, T6= Tricho-compost (3 t/ha) + ¼ RDF gave superior results over control (Recommended doses of fertilizer). The data obtained from the experiment showed that Tricho-compost with fertilizer enhanced qualitative and quantitative characters of tuberose flowers.
Highlights
Tuberose (Polianthes tuberosa L.), a member of Amaryllidaceae family was originated in Mexico and grown on large scale in Asia
The lowest emergence percentage was noted in T8 (80%) (Figure 1). These results indicate that application of organic fertilizers with chemical fertilizer had tremendous effects on plant growth and development in tuberose
Data collection Data were recorded on various growth characteristics such as emergence percentage, plant height, plant spread and number of leaves per plant, flowering characteristics such as days required for flowering, number of spikes per plant, spike length, spike weight (g), rachis length, flower durability, flower yield and bulb characteristics such as number of bulbs per plant, size and weight of bulb, number and weight of bulblets
Summary
Tuberose (Polianthes tuberosa L.), a member of Amaryllidaceae family was originated in Mexico and grown on large scale in Asia. It is an important cut flower crop from aesthetic as well as commercial point of view. Tuberose occupies a very selective and special position to flower loving people. In Bangladesh, for the last few years, tuberose has become a popular cut flower for its attractive fragrance and beautiful display in the vase. It has high demand in the market and its production is highly profitable [2]
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