Assertion: cassava's use | /r/CapableOf | start in early 1990
Facets:
Source sentences:
text: A wider use of participatory methods in cassava research in Northeast Brazil started in early 1990's using an adaptation of the methodology developed by Hernandez (1992, 1993) for cassava improvement, specially directed to the genetic improvement of the crop in the semi-arid areas of the region.