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Experimental propagation of various known clones of the same grapevine variety
PLANSEL started plantations on a larger scale, with different clones of the same varieties planted side by side. By the 1980s over 100 hectares had been planted in this manner (at places such as the Fundação EA, Ervideira and Alorna). After these plantations were subjected to intensive virological testing, which was the first testing of its kind in Portugal, they served not only as locations from which relevant data have been statistically recorded and monitored but also served simultaneously as a cutting garden from which to supply the market with homogenous grapevine scions.
- Grapevine selection in Portugal at the time of accession to the EU, Hans Jörg Böhm, Enologia No. 1/87 (1987)
Vineyard plantations of Portuguese reference grapevine varieties, which were selected by PLANSEL according to the Geisenheim selection criteria and tested for viruses at LeLaFo Neustadt (by Dr Rüdel of LaLeFo Neustadt and Jorge da Silva of EAN Oeiras) before they were grafted onto rootstock at Geisenheim as breeding material. The harvests from these selections were microvinified ot Mitra/Évora over the course of a decade. The best clones were tested for 17 viruses (Elisa, indexing, PCR) and statistics drawn up from a joint regression analysis before they were certified and conserved in the germplasm repository at Montemor.
Plantings by PLANSEL between 1980 and 1990 using clonal material on rootstocks of various varieties, classified according to which "sanitary family" they belonged to.
Nos anos 80. Os inícios da preparação de matérias das castas vinífera comerciais, era a desinfecção com Chinosol e a corta das varas em dois gomos (enxertia tradicional no local) ou de um gomo pelo bacelo enxertado. As vinhas mais foram plantações de clientes com material de selecção PLANSEL.