This book illustrates some principles of environmental adaptation from the comparative performance of cultivated tropical pasture lands in the field and in controlled environments. In this concluding chapter I summarise the adaptive characters of the main pasture species used by farmers in order to indicate the ecological niches to which these plants are best suited. I also discuss the characters most needing improvement in the suite of available grasses and legumes if increased agricultural productivity, efficient resource use and ecosystem stability are to become more feasible goals in all of the diverse farming conditions of the tropics and subtropics.
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