The Growth of Arabica Coffee Seedling (<i>Coffea arabica Linn.</i>) on Various Watering Time Intervals and Shade Intensities
Keywords:biomass, evapotranspiration, plant coefficient, water fraction.
The purpose of this research is to get the parameter of plant coefficient and water fraction availability that needed in order to calculate the accurate watering time interval, to get the optimum shade intensity, also the combination of watering time interval and the optimum shade intensity for the growth of coffee seedling. The experiment conducted at IPB Experimental Station, Dramaga, BogorÂ from May 2013 until April 2014, using split plot design with two factors. Main plot is shade intensity with some levels: 0, 25, 50, 75, 100%, and the sub plot is watering time interval, once in 2, 4, 6 and 8 days. The interaction between shade intensity treatments, and watering intervals result significantly towards leaf thickness, stomata density, chlorophyll content, wet weight of root, evapotranspiration, plant coefficient and available water fraction. The treatment combination that suggested is 75% shade treatment with watering time interval once in 4 days with the value of available water fraction that can be absorbed 15.56% and plant coefficient is 0.87. The optimum shade for the growth of coffee seed is 77%.
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