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Wild peanut for ornamental lawns.

Some species of wild peanut (Arachis spp.), Arachis genus, have been used for ornamental lawns in Brazil, but all of them derive from a very small number of accessions. Many new expeditions have been made to collect the genus, mostly by Embrapa Recursos Genéticos e Biotecnologia (Cenargen), incorporating a broad array of accessions unavailable before for research purposes. The present work was established taking advantage of the current availability of new accessions and of several interspecific hybrids produced by Embrapa Cenargen. Five species were selected for inclusion: A. glabrata, A. helodes, A. pintoi, A. repens and A. kempff-mercadoi. Six hybrids were added, whose progenitors were: A. appressipila, A. paraguariensis, A. pintoi, A. repens and A. vallsii. The experiment was conducted in Campinas - São Paulo State - Brazil, at Instituto Agronômico (IAC). Data recorded cover flowering, branching speed, foliage density, flower color and leaf phytosanitary aspect, along two consecutive years, 1998 to 2000. The accessions had two peaks of flowering during summer. Most of them did not show flowers during autumn/winter months, from May to September. The hybrid accessions had good stands only at the first year, and lost vigor along the second year. Arachis kempff-mercadoi, A.helodes, A. repens and A. glabrata look like good accessions for landscaping.

ISSN: 2447-536X

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