TY - JOUR AU - Brizzi, Maurizio AU - Biondi, Cristina AU - Lazzarato, Lisa AU - Betti, Lucietta PY - 2002/01/01 Y2 - 2024/03/29 TI - Analisi esplorativa dell'effetto di soluzioni ultramolecolari di triossido di arsenico sullo sviluppo vegetativo in vitro di plantule di grano JF - Statistica JA - Stat VL - 62 IS - 3 SE - Articles DO - 10.6092/issn.1973-2201/423 UR - https://rivista-statistica.unibo.it/article/view/423 SP - 515-522 AB - This paper deals with an experiment in which wheat seeds were stressed with a material dose of As2 O3, and then treated with ultra-molecolar dilutions of the same substance, with and without potentization. We focused our analysis on seedling stem length during 7 days of treatment, and tried to give a thorough statistical description of the data. We applied simple nonparametric tests for comparing treated and control groups: it seems to be a significant stimulating effect when seeds are treated with the 45th decimal potency of As2 O3 . A similar effect was obtained in a previous experiment (Betti et al., 1997), and shows that our model allows a proper reproducibility of results. ER -