The result showed that four drought-enduring rice varieties:2PB01, 2PB02, 2PB03 and 2PB04 not only increased production by 6.2%, 24.6%, 18.5%, 23.6% respectively over Brazilian Upland Rice but also were with the characters of drought endurance.

• 结果表明 ；4个耐旱水稻新品系 2PB0 1、2PB0 2、2PB0 3和 2PB0 4分别比对照巴西陆稻耐旱且增产 6.；2%25、2 4