寒地水稻茎秆抗倒伏性状的初步研究  

The Original Research on the Anti-loading Characters of the Cold Area Rice

作　　者：马瑞[1,2] 

机构地区：[1]东北农业大学,哈尔滨150030 [2]黑龙江省农业科学院佳木斯分院,黑龙江佳木斯154007

出　　处：《北方水稻》2009年第5期13-15,共3页North Rice

摘　　要：对四个代表性的水稻品种(品系)空育131、垦稻12、垦稻13、合选0172-2的倒伏性状进行研究,采取倒伏指数作为水稻抗倒的指标,从中分析影响水稻倒伏的各因素。结果表明:四个品种(品系)的第一伸长节的倒伏指数均高于其第二伸长节,表明第一伸长节是倒伏的敏感节位。本试验中品种的抗倒伏性,不是通过株高,这单一性状所能完全反映的;伸长节的抗折力与水稻倒伏指数关系最为密切,显著水平最高。Four typical rice varieties （lines）, Kongyu 131, Kendao 12, Kendao 13, HeXuan 0172-2 were used as entries and the lodging characteristics were studied so as to analyze lodging factors. The results showed that the lodging indexes of the first elongation node were more than the second elongation node, indicating that the first elongation node was the sensitive node for rice lodging. The anti-lodging character of rice was not reflected by plant height, the single character. The break-resistance force of elongation node had the highest correlation with lodging index at significant level.

关 键 词：倒伏 倒伏指数 抗折力 

分 类 号：S511.034[农业科学—作物学]