Participatory natural resource management in watersheds: Concepts, issues and challenges for research
Aluminum stress inhibits accumulation of phosphorus in root apices of aluminum-sensitive but not aluminum-resistant brachiaria cultivar
Level of introgression in inter-specific (Phaseolus vulgaris x P. acutifolius) congruity-backcross lines
Possible origins of common bean (Phaseolus vulgaris L.) cultivated in Spain in relation to the wild genetic pools of the America [CD-ROM]