s:522:"%T Provenance and progeny trials 
%A Dunsdon A J 
%A Simons A J 
%X Since 1987, the Oxford Forestry Institute (OFI) hascoordinated a network of field trials to assess variationbetween and within populations of Gliricidia sepium interms of their ability to provide useful productsunder cultivation. To identify the best populations (provenances), whether in terms of productivity (growth and yield) or product quality, the full range of available genetic variation had firstto be systematically sampled and evaluated. 
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