ISHS Acta Horticulturae 425: II International Pineapple Symposium
FIRST RESULTS FROM JOINT EMBRAPA-CIRAD ANANAS GERMPLASM COLLECTING IN BRAZIL AND FRENCH GUYANA |
| Authors: | M.F. Duval, G. Coppens d'Eeckenbrugge, F.R. Ferreira, L.d.B. Bianchetti, J.R.S. Cabral |
| Abstract:
In the frame of a collaborative EMBRAPA-CIRAD project, germplasm of Ananas and Pseudananas genera was collected in certains areas of major diversity, namely the Amazon Basin (Amapa, Rio Negro, Rio Solimoes, Acre and Northern Mato Grosso), the French Guyana and Southern Brazil. Collecting trips were conducted using herbarium data and information provided by scientists and extension agents, and completed by local inquiries. Rivers as well as existing roads and trails were followed; air transportation was used in some cases. A total of 434 clones, mostly land races and wild types, was collected. Some duplicates are probably included as morphological observation took place at different growth stages or within different ecological conditions. The distribution of the different species is consistent. Part of the accessions, however, could not be classified following the current taxonomic key, which raises question about the validity of the key. The structure of certain wild populations indicates that sexual reproduction is involved in their multiplication and diversification. Variability within the cultivated species Ananas comosus is high, and cannot be described in terms of its usual five groups. Collected material was transferred to the collections of CIRAD-FLHOR in Martinique and EMBRAPA-CNPMF in Cruz das Almas (Bahia). Botanical, agronomical and molecular characterization is in progress. | |
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