Fuente: WIPO "tomato" A novel romaine lettuce variety designated DAISY is disclosed. The variety is characterized by a glossy medium green color, heavier plant weight, tall height, medium cupping, high tolerance to tipburn, solid midribs, genetic resistance to Tomato bushy stunt virus (TBSV), field tolerance to corky root rot, short cores, resistance to downy mildew (DM18), and fringe burn tolerance. This disclosure thus relates to the seeds of lettuce variety DAISY, to the plants of lettuce variety DAISY, to plant parts of lettuce variety DAISY, to methods for producing a lettuce plant by crossing a plant of lettuce variety DAISY with a plant of another lettuce variety, and to methods for producing a plant of lettuce variety DAISY containing in its genetic material one or more backcross conversion traits or transgenes and to the backcross conversion lettuce plants and plant parts produced by those methods.