【摘要】 从产量性状、外部形态和生理生化3个方面多个指标中选出11项有代表性的指标,采用其旱/水比相对值(划分评分标准)和权重计分法对4个水、陆稻品种(组合)进行了抗旱性综合评价,综合评分以TANGARA最高(4.06分)明显高于其他3个品种,IAPAR9(3.33分)次之,稍高于新香优80(3.21分),R80最低(2.59分)。表明TANGARA有较强的抗旱性,IAPAR9和新香优80抗旱性相差不大,R80较差,与生产实际表现基本一致。表明此项方法具有较强的客观性和准确性。更多还原

【Abstract】 Eleven typical indexes have been selected from yield characters, morphological and physiological and biochemical properties. Upland/lowland relative values of all indexes and their weights have been applied to evaluate the drought resistance of upland and lowland rice. The result of comprehensive evaluation showed that the highest was TANGARA (4.06), significantly higher than the other varieties. IAPAR9 was the second (3.33), which higher than that of XinXiangYou80 (3.21), the lowest was R80(2.59). Thus the upland rice TANGARA has stronger drought resistance, the drought resistance of IAPAR9 was stronger than that of XinXiangYou80, and R80 was poorest. The result was coincident with the field performance. So, the comprehensive evaluation has more objective and definite.更多还原