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Pumpkin Response To Four Evapotranspiration Replenishment Treatments

Author

Listed:
  • Rossy, Julio
  • Roman-Paoli, Elvin
  • Martinez-Garrastazu, Sonia
  • Almodovar, Carlos

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.

Suggested Citation

  • Rossy, Julio & Roman-Paoli, Elvin & Martinez-Garrastazu, Sonia & Almodovar, Carlos, 2001. "Pumpkin Response To Four Evapotranspiration Replenishment Treatments," 37th Annual Meeting, July 15-20, 2001, Port of Spain, Trinidad and Tobago 256687, Caribbean Food Crops Society.
    • Handle: RePEc:ags:cfcs01:256687
    DOI: 10.22004/ag.econ.256687
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    1. Rossy, Julio & Roman-Paoli, Elvin & Martinez-Garrastazu, Sonia & Rivera, Luis Ernesto, 2000. "Effect Of Controlled Water Regimes On Pumpkin Growth," 36th Annual Meeting, August 27-September 1, 2000, Boca Chica, Santo Domingo, Dominican Republic 256781, Caribbean Food Crops Society.
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    1. Rossy, Julio & Roman-Paoli, Elvin & Martinez-Garrastazu, Sonia & Almodovar, Carlos, 2001. "Pumpkin Response To Four Evapotranspiration Replenishment Treatments," 37th Annual Meeting, July 15-20, 2001, Port of Spain, Trinidad and Tobago 256686, Caribbean Food Crops Society.

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