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Position: Home > Articles > Resistance Function on Barnyardgrass in Wild Rice and African Rice Cultivars Chinese Journal of Rice Science 2002,16 (3)

野生稻和非洲栽培稻抗稗草作用研究初报

作  者:
余柳青;徐正浩;郭怡卿;陶大云
单  位:
中国水稻研究所;云南省农业科学院植物保护研究所;云南省农业科学院粮食作物研究所
关键词:
野生稻;非洲栽培稻;无芒稗;抗杂草作用
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%。
译  名:
Resistance Function on Barnyardgrass in Wild Rice and African Rice Cultivars
作  者:
YU Liu qing 1, XU Zheng hao 1, GUO Yi qing 2, TAO Da yun 3 ( 1 China National Rice Research Institute, Hangzhou 310006, China; 2Plant Protection Research Institute, Yunnan Academy of Agricultural Sciences, Kunming 650205, China; 3Food C
关键词:
wild rice; African cultivar; Echinochloa crus galli (L.) Beauv. var. mitis; resistance to weed
摘  要:
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.

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