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| 马铃薯晚疫病菌在水和土壤中的侵染力与形态变化的研究 | |
| 引用本文： | 周广泉,林国光.马铃薯晚疫病菌在水和土壤中的侵染力与形态变化的研究[J].植物病理学报,1965,8(1):11-15. |
| 作者姓名： | 周广泉 林国光 |
| 作者单位： | 甘肃农业科学院植物保护研究所 |
| 摘 要： | 马铃薯晚疫病菌以薄壁圆孢子和厚垣孢子的形态存在于润湿的土壤中。保持侵染力的时间最长为75天。病种薯上的病原菌在pH 7.5、含水率17-22%的土壤中,保持侵染力的时间是90天。 病原菌在各种液体中都能形成厚垣孢子。 较低的温度和较好的营养条件能延长孢囊孢子的寿命和延缓厚垣孢子的形成期。 |
ON THE INFECTIVITY AND MORPHOGENESIS OF PHYTOPHTHORA INFESTANS IN WATER AND SOIL |
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| Chow Goang-cheng,Lin Kuo-kwang.ON THE INFECTIVITY AND MORPHOGENESIS OF PHYTOPHTHORA INFESTANS IN WATER AND SOIL[J].Acta Phytopathologica Sinica,1965,8(1):11-15. | |
| Authors: | Chow Goang-cheng Lin Kuo-kwang |
| Institution: | Institute of Plant Protection, Kansu Academy of Agricultural Sciences |
| Abstract: | When the sporangia and hyphae of Phytophthora infestans (Mont).de Bary were placed in sterilized distilled water,potato juice,soil extract and soils under 16-22℃,the infested water remained infective for 38 days,the infested potato juice 40 days,the infested soil extract 38 days,the infested soils 21-75 days,as assayed by inoculation of fresh potato slices.The soils surrounding diseased potato tubers were infective within 41-90 days after planting.In both cases,highest infectivity was obtained with moist soils at 17-22% water holding capacity. |
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