Effects of Rootstocks on Blade Nutritional Content of Two Minority Grapevine Varieties Cultivated under Hyper-Arid Conditions in Northern Chile

In the 90s, as in other countries, transformation of Chilean viticulture brought about introduction and spread European grapevine varieties which has resulted a massive loss minor local autochthonous traditionally grown several wine growing regions. Fortunately, recent years, minority have been revalued due to their high tolerance pests diseases because adaptation thermal water stress triggered by global warming. this study, we assessed nutritional status two grapevines grafted onto four different rootstocks under hyper-arid climatic conditions Northern Chile over three consecutive seasons. The results showed that R32 rootstock induced N, P, Ca, Mg Mn levels blades compared Harmony rootstock. lesser extent, 1103 Paulsen 140 Ruggeri kept balanced nutrients collected from Moscatel Amarilla Negra varieties. Additionally, presented slight imbalance rest studied its low absorption Mg, Mn, Ca K absorption, was exacerbated warm weather salinity soil conditions. These may provide basis for specific cultivar/rootstock/site combinations, guide viticulturists Chile, options diversify production favoring use adapt well Chile.