Original research article

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  Behavior phenological of the Antillean race of avocado in coastal region centro-norte of Venezuela

  Luis Avilán, Enio Soto, Mercedes Pérez, Carlos Marín, Margot Rodríguez, José Ruiz

  5-14

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  Dry mass accumulation of different organs of the rice plant under water deficit conditions

  Aymara García , Maydelin Dorado, Isel Pérez, Reinaldo Cun, Teresa López, Eugenio Montilla

  15-24

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  Poorly drained soils in Venezuela

  Juan A. Comerma G.

  25-32

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  Characterization of the river basin Canoabo in the state Carabobo, Venezuela. I. Climatic analysis and of water production

  Victor A. Sevilla L., Juan A. Comerma G., Oscar Silva

  33-44

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  N-Nh4+ and N-NO3- uptake by potato in the tuber seed production

  Héctor M. Coraspe-León, Takashi Murakoa, Vinicius Ide Franzini, Freddy S. Contreras Espinal, Paulo C. Ocheuze Trivelin

  45-58

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  Collection and rescues of the local knowledge of native cottons in the coasts of the states Falcon and Aragua, Venezuela

  Margaret Gutiérrez Mulas, Baltazar Trujillo, Delis Pérez, Alexis Márques, William Pacheco

  59-71

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  Evaluation of some chemical characteristics of cocoa beans in fermentation

  Ligia Ortiz de Bertorelli, Lucía Graziani de Fariña, Gervaise Rovedas L.

  73-79

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  Influence of several factors on physical indexes of cocoa seeds in fermentation

  Ligia Ortiz de Bertorelli, Gervaise Rovedas L., Lucía Graziani de Fariña

  81-88

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  Evaluation of insecticide thiamethoxam 25% for the control of the sogata insect in the culture of rice in Calabozo, Guarico State, Venezuela

  Luis E. Vivas, Dilcia Astudillo, Luis Campos

  89-98

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  Effects of the nitrogen sources on lettuce nitrates content and over "spad" lectures

  Argelia Escalona, Mario Santana, Ingrid Acevedo, Vianel Rodríguez, Lue Merú Marco

  99-105

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