Respuesta fisiológica de Beilschmiedia miersii frente al estrés hídrico invernal en vivero

Beilchmiedia miersii (Gay) Kosterm (Belloto of the North), an endemic species central Chile, belongs to hydrophilous forest subtype within sclerophyllous ecosystem; it is azonal in character and fragmented distribution. Preferably, its populations are found near stream areas, given high water needs, a situation that aggravated by intense prolonged drought affects area where grows. B. faces strong environmental stress during summer, unknown if reduction precipitation also causes winter. Therefore, we hypothesized would present low level under deficit winter season, period which climatic factors such as radiation, relative humidity less restrictive vegetation. The field trial was established nursery Metropolitan Region Chile included two treatments: control (TRC) restriction (TRR). In both treatments, growth (root collar diameter length), biomass variation, leaf potential substrate content were evaluated on days 1, 126 161. Contrary our hypothesis, results revealed generated TRR plants, leading physiological metabolic changes negatively impacted their growth, development accumulation. short term, this resulted reduced capacity face adverse conditions occur summer period.