摘要
收集国内外节水抗旱稻品种20份,对其进行苗期及穗期抗旱性鉴定,结果表明,多数旱稻品种的苗期抗旱性与穗期抗旱性鉴定结果相同,其中沪旱3号、沪旱15号苗期、穗期抗旱性表现最好,为高抗;BLUE BELLE、IAT109苗期抗旱级别为5级而穗期为7级,说明这2个品种后期抗旱较前期要差;IR55423-01的苗期抗旱级别为7级而穗期为5级,说明该品种后期抗旱性较强。
20 drought-tolerance varieties including home and abroad were collected as materials. Drought resistance ability was identified for these varieties at seedling stage and heading stage. The results showed that drought-resistance at seedling stage was consistent with drought-resistance at heading stage in majority upland rice varieties. Huhan No. 3 and Huhan No. 5 had high drought-resistance ability both at seedling and heading stage. BLUE BELLE and IAT109＇s drought-resistance level was 5 at seedling stage and 7 at heading stage indicating their poor drought resistance,while IR55423-01 showed the converse drought-resistance.
出处
《现代农业科技》
2009年第23期21-22,共2页
Modern Agricultural Science and Technology
关键词
水稻
抗旱性
苗期
穗期
rice
drought-tolerance ability
seadling satage
heading stage
