(Modbee) - Joseph Gallo, head of the largest family-owned winery in the world, reinforced his commitment to California's wine industry Friday with a pledge to enter into new grower contracts worth thousands of acres of grapes. Gallo, president of the Modesto-based E.&J. Gallo Winery, made a rare public appearance at the annual San Joaquin Valley Winegrowers Association's Wine and Grape Industry forum in Fresno. And the 70-year-old Gallo came with big news.