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水稻惡苗病接種試驗(yàn)初步研究

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摘  要:選擇了2個(gè)水稻品種,通過病原菌孢子和菌絲懸浮液與稻?;彀璧姆椒ń臃N,接種5 d后分離出病原菌的芽數(shù)占總分離稻芽的70%以上,從病原菌分離出部位看,病原菌隨著植株生長(zhǎng)逐步向上擴(kuò)展蔓延。接種發(fā)病的效果證明了使用稻粒與惡苗病菌混拌接種方法是可行的,且簡(jiǎn)便易行。

關(guān)鍵詞:水稻;惡苗病;接種;鐮孢屬

中圖分類號(hào):S435.111.4+4                       文獻(xiàn)標(biāo)志碼:A文章編號(hào):1673-6737(2023)05-0030-03

Preliminary Study on Inoculation Test of Rice Bakanae

SHAO Li-hua , LI Peng*

(Institute of Plant Protection, Heilongjiang Academy of Land Reclamation Sciences, Harbin 150038, China)

Abstract:In this paper, two rice varieties were selected and inoculated by mixing pathogen spores and mycelia suspension with rice grain. After 5 days of inoculation, the number of shoots isolated pathogens accounted for more than 70% of the total isolated rice shoots. The effect of inoculation proved that the mixed inoculation method of rice grain and pathogen was feasible and simple.

Key words: Rice; Bakanae; Inoculation; Fusarium

水稻惡苗病又名徒長(zhǎng)病俗稱公稻子,是危害性強(qiáng)的水稻常見真菌性病害,是黑龍江稻區(qū)普遍發(fā)生的水稻病害,在水稻生育后期調(diào)查發(fā)病重的地塊發(fā)病率達(dá)10%~20%,嚴(yán)重影響水稻產(chǎn)量。(剩余4026字)

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