PUMPKIN RESPONSE TO FOUR EVAPOTRANSPIRATION REPLENISHMENT TREATMENTS

Julio Rossy, Elvin Roman-Paoli, Sonia Martinez-Garrastazu and Carlos Almodovar

No 256686, 37th Annual Meeting, July 15-20, 2001, Port of Spain, Trinidad and Tobago from Caribbean Food Crops Society

Abstract: The response of pumpkin, Cucurbita moschata (Duchesne) Poir, to four évapotranspiration replenishment treatments (25, 50, 75, and 100%) was studied at Lajas and Juana Diaz experiment station of the University of Puerto Rico. Pumpkin was planted on 1 March and 17 March, 2000 at Lajas and Juana Diaz, respectively. The experiment was arranged on a split plot, where the whole plot consisted of the évapotranspiration replenishment treatments (ERT) and subplots of drymatter and leaf area determination. Theoretical potential évapotranspiration (ETo) was estimated using the Pan A evaporation method. The average Kp values used were 0.63 and 0.66 for Juana Diaz and Lajas respectively. Pumpkin (var. Soler) average Kc value was 0.78. ERT did not affect significantly crop leaf area, drymatter, and yield at both locations. The lack of response to treatments was due to the high amount of off-season rainfall that occurred during the trial.

Keywords: Crop Production/Industries; Productivity Analysis (search for similar items in EconPapers)
Pages: 6
Date: 2001-07-15
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Persistent link: https://EconPapers.repec.org/RePEc:ags:cfcs01:256686

DOI: 10.22004/ag.econ.256686

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