Chinese Journal OF Rice Science

Chinese Journal of Rice Science

• 研究简报 • Previous Articles     Next Articles

Resistance Function on Barnyardgrass in Wild Rice and African Rice Cultivars

YU Liu-qing 1; XU Zheng-hao 1; GUO Yi-qing 2; TAO Da-yun 3   

  1. （1 China National Rice Research Institute; Hangzhou 310006; China; 2Plant Protection Research Institute; Yunnan Academy of Agricultural Sciences; Kunming 650205; 3Food Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming 650205, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2002-07-10 Published:2002-07-10

野生稻和非洲栽培稻抗稗草作用研究初报

余柳青1; 徐正浩1; 郭怡卿2; 陶大云3   

  1. 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

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Abstract: 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.

Key words: wild rice, African cultivar, Echinochloa crus galli (L.) Beauv. var. mitis, resistance to weed

摘要： 盆栽试验测定了22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DY12 和DY16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46.1%和47.0%，对无芒稗植株鲜重抑制率分别达到66.8%和72.3%。非洲栽培稻FZ24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41.7%和65.7%。

关键词: 野生稻, 非洲栽培稻, 无芒稗, 抗杂草作用