Perspectives on allelopathy in mexican traditional agroecosystems: A case study in tlaxcala
Por:
Anaya A.L., Ramos L., Cruz R., Hernández J.G., Nava V.
Publicada:
1 ene 1987
Resumen:
Agroecosystems in Tlaxcala, Mexico, are surrounded by trees and water channels and have a great variety of cultivated and noncultivated plants. The main results of a study carried out on a traditional agroecosystem in Santa Inés, Tlaxcala are presented. Some ecological aspects of polycultures, plant covers (dry leaves of Alnus firmifolia, Berula erecta, and Juncus sp.), and the allelopathic potential of crops and noncultivated plants (fresh and dry material) were analyzed. The main plants (trees, shrubs, and herbs) present in the agroecosystem were identified. The total number of weeds in plots where plant covers were added was reduced. The number of nodules of Rhizobium phaseoli and the production of bean and squash increased with plant covers. Corn, beans, and squash showed a clear allelopathic effect, as well as Chenopodium murale, Tradescantia crassifolia, Melilotus indicus, and Amaranthus hybridus, among other weeds. The contribution of allelopathy in studies of traditional agroecosystems is of great importance for the management of species in space and time. Allelopathy can be the basis of biological control of pests and weeds and of the discovery of new useful substances. © 1987 Plenum Publishing Corporation.
Filiaciones:
Anaya A.L.:
Instituto de Fisiología Celular, UNAM, Apdo. Postal 70-600, México, D.F., 04510, Mexico
Ramos L.:
Instituto de Fisiología Celular, UNAM, Apdo. Postal 70-600, México, D.F., 04510, Mexico
Cruz R.:
Instituto de Fisiología Celular, UNAM, Apdo. Postal 70-600, México, D.F., 04510, Mexico
Hernández J.G.:
Instituto de Fisiología Celular, UNAM, Apdo. Postal 70-600, México, D.F., 04510, Mexico
Nava V.:
Instituto de Fisiología Celular, UNAM, Apdo. Postal 70-600, México, D.F., 04510, Mexico
|