野生稻和非洲栽培稻抗稗草作用研究初报  

Resistance Function on Barnyardgrass in Wild Rice and African Rice Cultivars

作　　者：余柳青[1] 徐正浩[1] 郭怡卿[2] 陶大云[3] 

机构地区：[1]中国水稻研究所,浙江杭州310006 [2]云南省农业科学院植物保护研究所,云南昆明650205 [3]云南省农业科学院粮食作物研究所,云南昆明650205

出　　处：《中国水稻科学》2002年第3期288-290,共3页Chinese Journal of Rice Science

基　　金：国家自然科学基金资助项目 (3 0 170 62 0 )

摘　　要：盆栽试验测定了 2 2份野生稻和 9份非洲栽培稻对无芒稗的抑制效果。发现野生稻 DY- 12和 DY- 16存在显著的抗性作用 ,它们对无芒稗的苗数抑制率分别达到 4 6 .1%和 4 7.0 % ,对无芒稗植株鲜重抑制率分别达到 6 6 .8%和 72 .3%。非洲栽培稻 FZ- 2 4也表现出良好的防治无芒稗效果 ,无芒稗苗数抑制率和植株鲜重抑制率分别达到 4 1.7%和 6 5 .7%。In a pot experiment, 22 wild rice and 9 African rice cultivars were evaluated in bioassay for resistance function on barnyardgrass [Echinochloa crus galli (L.) Beauv. var. mitis (Pursh) Peterm.]. Wild rice DY 12 and DY 16 had excellent resistance function with reduction in barnyardgrass seedling number being 46.1% and 47.0%, and in barnyardgrass plant fresh weight being 66.8% and 72.3%, respectively. African cultivar FZ 24 also had good resistance effect on the barnyardgrass with the seedling number reduction of 41.7% and plant fresh weight reduction of 65.7%, respectively.

关 键 词：野生稻 非洲栽培稻 抗稗草作用 无芒稗 抗杂草作用 

分 类 号：S511.9[农业科学—作物学]