CAJ | 학술논문

为了明确黑龙江东部地区的水稻主栽品种不同播期对其稻瘟病发病程度,2010年在佳木斯新民村对黑龙江东部地区的19个品种（系）进行了不同播期稻瘟病的发病程度研究。结果表明,空育131在4月19日播期的叶瘟发病指数4.75%与其它品种（系）比较差异极显著。垦鉴稻6号在4月19日播期、空育131在4月23日播期的叶瘟发病病情指数跟其它品种（系）比差异也极显著;空育131、垦鉴稻6号在4月19播期的穗瘟病最为严重,病情指数分别为25.93%、27.79%,与其它品种相比差异极显著;其它品种（系）除绥粳3号S1播期外,在任意播期的叶瘟、穗瘟发病指数差异都不显著;研究结果亦表明,无论是叶瘟还是穗瘟大多以4月27日播期最低。
위료명학흑룡강동부지구적수도주재품충불동파기대기도온병발병정도,2010년재가목사신민촌대흑룡강동부지구적19개품충（계）진행료불동파기도온병적발병정도연구。결과표명,공육131재4월19일파기적협온발병지수4.75%여기타품충（계）비교차이겁현저。은감도6호재4월19일파기、공육131재4월23일파기적협온발병병정지수근기타품충（계）비차이야겁현저;공육131、은감도6호재4월19파기적수온병최위엄중,병정지수분별위25.93%、27.79%,여기타품충상비차이겁현저;기타품충（계）제수갱3호S1파기외,재임의파기적협온、수온발병지수차이도불현저;연구결과역표명,무론시협온환시수온대다이4월27일파기최저。
In order to monitor the effect of different sowing dates on rice blast resistance of main cultivars in east of Heilongjiang province,the study on rice blast resistance of eastern 19 varieties（strains） under different sowing dates was investigated in 2010 in Jiamusi Xinmin village.The results showed that the difference of leaf blast disease index between Kongyu131 on April 19 sowing date and others was extremely significant,the difference of Kenjiandao No.6 on April 19 sowing date and Kongyu 131 on April 23 sowing date with others was extremely significant too;The highest panicle blast were under the condition of Kongyu 131 and Kenjiandao No.6 on on April 19 sowing date,which were 25.93% and 27.79%,respectively,and the difference were extremely significant with others;The other cultivars（except for Suijing No.3 on April 19 sowing date）,were no differences of leaf blast and panicle blast on any sowing dates;It also indicated that whether leaf blast or panicle blast,the lowest disease index of most cultivars was under April 27 snowing date.