甘薯病毒病发生关键因素研究
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赵付枚,王爽,田雨婷,乔奇,王永江,张德胜,张振臣
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An Investigation into Key Factors Influencing the Occurrence of Virus Disease in Sweet Potato
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ZHAO FuMei,WANG Shuang,TIAN YuTing,QIAO Qi,WANG YongJiang,ZHANG DeSheng,ZHANG ZhenChen
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表3 种薯带毒种类与薯苗病毒病严重度之间关系
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Table 3 Relationship between virus infection status and virus disease severity on root sprouts
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种薯上病毒侵染类型
Virus infection status on storage roots | 种薯块数（个）
Number of storage roots | 各级显症薯苗的比例
Ratio of root sprouts with different virus symptom severities (%) | | 0 | 1 | 3-5 | 7-9 | | None | 202 | 96.0 | 3.0 | 1.0 | 0 | | Potyvirus (es) | 66 | 60.6 | 31.8 | 7.6 | 0 | | Sweepoviruses or sweepoviruses+potyvirus (es) | 76 | 55.3 | 32.9 | 11.8 | 0 | | SPCSV | 142 | 30.9 | 29.6 | 29.6 | 9.9 | | SPCSV+sweepoviruses | 28 | 14.3 | 25.0 | 46.4 | 14.3 | | SPCSV+potyvirus (es) | 149 | 0 | 0 | 49.0 | 51.0 | | SPCSV+CMV | 1 | 0 | 0 | - | 0 | | CMV | 1 | 0 | 0 | - | 0 |
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