ABSTRACT
Bud failure and boron leveis in tissues of four Vitis vinifera L. cultivars

Arturo Lavín A.1
 

ln the Cauquenes area, different tissues of four grapevine cultivars, that had showed bud failure in the 1976-77 season, were sampled and analyzed tor boron concentration. General differences between cultivars were found, with the lowest levels for Cinsaut and Torontel and the highest for Pais. ln accordance to the petiole values, only Pais exceeded the critical level of 30 ppm. The other three cultivars showed deficient levels, moderate for Blanca Ovoide and extreme in Cinsaut and Torontel.

Keywords:
1 Subestación Experimental Cauquenes (INIA), Casilla 165, Cauquenes, Maule, Chile.