Horticulture [Tomato; onion; okra; potato; peas; sweet pepper. Variety trials at Sennar, Sudan]

allium cepa capsicum annuum enroulement des feuilles espacement espaciamiento especies essai experimentation experimentos experiments hibiscus esculentus irrigation leaf curls lycopersicon esculentum pisum sativum plant population pruebas riego rizado de la hoja solanum tuberosum spacing species trials