寒地早粳品种稻瘟病抗性与品质的关系  

Study on Relationship between Resistance to Blast and Quality in Early Japonica Rice in Cold Region

作　　者：潘国君[1,2] 陈温福[1] 冯雅舒[2] 宋成艳[2] 李霞辉[3] 张兰民[2] 刘传雪[2] 王桂玲[2] 王瑞英[2] 张云江[2] 

机构地区：[1]沈阳农业大学,辽宁沈阳110161 [2]黑龙江省农业科学院水稻研究所 [3]黑龙江省农业科学院谷物品质研究中心,黑龙江佳木斯154026

出　　处：《中国农学通报》2005年第1期260-262,267,共4页Chinese Agricultural Science Bulletin

基　　金：国家863资助项目(2001AA241016)黑龙江省重大专项(GB018102-03-03)。

摘　　要：采用寒地早粳近5年参加黑龙江省区域试验和生产试验的131个品种,对稻瘟病抗性与品质诸性状的相关关系进行了研究,结果表明,寒地早粳水稻品种穗颈瘟抗性与水稻品种长宽比的相关系数为-0.1967,达到显著负相关;叶瘟、穗颈瘟抗性与水稻品种垩白大小呈显著正相关,平均相关系数分别为0.2026和0.1995;叶瘟、穗颈瘟抗性与垩白米率呈极显著正相关,平均相关系数分别为0.2276和0.2240:叶瘟、穗颈瘟抗性与垩白度除人工鉴定穗颈瘟外均呈显著正相关,叶瘟平均相关系数为0.1789,穗颈瘟平均相关系数为0.1630。叶瘟抗性与水稻品种蛋白质含量的相关系数平均为0.2159,达到显著负相关;稻瘟病抗性与水稻品种蒸煮品质、食味品质相关性因试验方法而不同,胶稠度、直链淀粉含量、食味在人工鉴定条件下存在着显著负相关性。因此,在寒地稻区选育优质、高抗稻瘟病的水稻新品种是完全可能的。Correlation coefficients between rice resistance to blast and qualities of 131 varieties which were tested in the region trial in the cold region in recent 5 years. The result showed: A significant negative correlation effect between resistance to blast and grain Length/Width (L/W) ratio in cold region early japonica rice varieties; A significant positive correlation effect between resistance to leaf and neck blast and chalki-ness factor included chalky grain, chalkiness and chalk size; A significant negative correlation effect between resistance to leaf blast and protein content. Leaf blast showed different relationship to steaming quality and eating quality in different experimental ways. A significant negative correlation effect to gel consistency (GC), amylose content (AC) and eating quality in artificial identification.

关 键 词：穗颈瘟 抗性 稻瘟病 寒地 水稻品种 早粳品种 品质 人工 鉴定 相关性 

分 类 号：S511[农业科学—作物学] S435