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Incidencia de Azospirillum en algunas gramíneas del tropico subhúmedo cálido de México
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-01)
Number and identification of Azospirillum species were determined in the rhizosphere and roots of maize in 3 different biasses (l anicum maximum, Hyparremia tufa and Cynodon dactylon) collected in the field We observed ...
Anillos anuales de crecimiento en cafetos (Coffea arabica L.) y sus usos potenciales
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-01)
Annual growth rings are reported for coffee trees growing in the Coatepec region of Veracruz, Mexico. Ring structure and formation are briefly discussed and the potential use of growth rings in coffee are highlighted.