CAJ | 학술논문

[目的]明确不同条件下不同品种化感水稻抑草率的动态变化。[方法]分别在大田及盘栽2种条件下,使用直播与移栽2种种植方式,对水稻抑草新品种化感稻3号、培杂软香、粳籼89及PI312777的抑草率进行研究。[结果]总体抑草效果培杂软香最好,粳籼89最差,PI312777略好于化感稻3号;盘栽时的抑草效果各时期均好于大田植;前期（前3次）移栽水稻抑草率效果明显差于直播水稻,但最终抑草率效果会发生逆转。[结论]研究结果为科学利用化感稻3号和培杂软香2个化感稻奠定了基础。
[목적]명학불동조건하불동품충화감수도억초솔적동태변화。[방법]분별재대전급반재2충조건하,사용직파여이재2충충식방식,대수도억초신품충화감도3호、배잡연향、갱선89급PI312777적억초솔진행연구。[결과]총체억초효과배잡연향최호,갱선89최차,PI312777략호우화감도3호;반재시적억초효과각시기균호우대전식;전기（전3차）이재수도억초솔효과명현차우직파수도,단최종억초솔효과회발생역전。[결론]연구결과위과학이용화감도3호화배잡연향2개화감도전정료기출。
[Objective] The paper was to determine the dynamic changes of suppressive effect of allelopathic rice against grass under different conditions.[Method] The suppressive effect of allelopathic rice 3,Peizaranxiang,Jingxian89 and PI312777 against grass was studied by direct seeding and transplant modes under field and potting conditions.[Result] The overall suppressive effect of Peizaranxiang was the best,and Jingxian89 was the worst;PI312777 was slightly better than allelopathic rice 3;the suppressive effects in potting test were better than that in field test;the suppressive effect of transplanting during early stage（the former three times） was significantly poorer than direct seeding,and the final suppressive effect would be reversed.[Conclusion] The result laid foundation for scientific utilization of allelopathic rice 3 and Peizaranxiang.