| 台莲梅, 赵巧兰, 靳学慧, 金光辉.马铃薯立枯丝核菌生物学特性研究[J].植物保护,2015,41(1):89-92. |
| 马铃薯立枯丝核菌生物学特性研究 |
| Biological characteristics of Rhizoctonia solani isolated from potato |
| 投稿时间：2014-02-15 修订日期：2014-05-10 |
| DOI： |
| 中文关键词: 马铃薯 立枯丝核菌 生物学特性 |
| 英文关键词:potato Rhizoctonia solani biological characteristics |
| 基金项目:黑龙江省农垦总局攻关项目（HNKXIV-06-03B） |
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| 中文摘要: |
| 采用生长速率法研究了黑龙江省马铃薯立枯丝核菌(Rhizoctonia solani Kühn)菌丝生长的条件。结果表明病菌菌丝在10～35 ℃均能生长, 适宜温度是25～30 ℃, 30 ℃菌丝生长最快。在pH为3～12的范围内病菌菌丝均能生长, 以pH 5～7菌丝生长速度较快。黑暗对菌丝生长有促进作用, 光照可促进菌核的形成。不同碳源、氮源对立枯丝核菌菌丝生长的影响均较明显, 可溶性淀粉和酵母粉对菌丝生长有显著的促进作用。立枯丝核菌菌丝体及菌核的致死温度分别为49 ℃和51 ℃。明确了黑龙江省马铃薯立枯丝核菌生长的环境条件, 可为病害防治提供理论依据。 |
| 英文摘要: |
| Biological characteristics of Rhizoctonia solani were studied by growth rate method. The results showed that the mycelium could grow under the temperature from 10 ℃ to 35 ℃; the optimal temperature was 25-30 ℃, and the fastest growth of mycelia was at 30 ℃. The culture pH was 3-12, and the optimal pH was 5-7. Darkness could promote the growth of mycelia. Illumination could promote the formation of sclerotia. Various carbon and nitrogen sources significantly influenced the growth of mycelia. Soluble starch and yeast powder had significant promoting effects on the growth of mycelia. The lethal temperatures for mycelia and sclerotia were 49 ℃ and 51 ℃, respectively. The environmental conditions for R.solani isolated from potato in Heilongjiang were ascertained, which provides a theoretical basis for control of the disease. |
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