ESTABLISHMENT OF A CORE COLLECTION OF WILD HEVEA BRASILIENSIS (WILLD.EX ADR.DE JUSS.) MUELL. ARG. GERMPLASM IN INDIA

摘要

The present study is the first attempt towards establishment of a core collection of Hevea brasiliensis germpLasm. The method adopted makes use of both quantitative data identified as morphological markers along with a set of qualitative morphological characterization data for evaluating the diversity in the base collection using principal component scores and Shannon-Weaver Diversity Index. The functional relationship between the cumulative contribution of the wild Hevea accessions to the total sum of squares and the number of accessions, which was essentially a logistic regression model, was used to decide the appropriate size for the core set. The method selected 23 wild accessions of wild H. brasiliensis constituting 28.75% of the base population.