宜宾烟区烤烟黑腔病发生规律及影响因素研究

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中图分类号：S435.72 文献标志码：A DOI编码：10.3969/j.issn.1006—6500.2025.02.012

ResearchonPrevalenceand InfluencingFactorsofBlack Shank inFlue-cured Tobacco

TANG Ming1， ZHANG Ying1，YANG Yang²，YANG Yide²，YANG Ping1， YAN Min²

（1.YibinAcademyofAgriculturalSciences，Yibin，Sichuan 6446oo，China;.Sichuan TobaccoCompany YibinCityCompany，Yibin，

Sichuan 644600， China）

Abstract：Inordertounderstandtheprevalenceandinfluencingfactorsofflue-curedtobaccoblackshankdiseaseinYibintobaco growingareaandguidethepreventionandcontrolofthedisease，thesurveyofflue-curedtobacoblackshankdiseaseinYibintobacco-growingareawasconducted through general surveyandsystematic investigation.Theresultsshowedthattheincidenceof black shankdiseasebegansporadicallinlateMayandreacheditspeak inearlyJuly.Theprevalencerateofblackshank increasedwiththe increaseofrainfallandfieldhumidityTheincidenceofflu-curedblackshankdiseasewassignificantlyafectedbytillgeariety andtransplantingperiod.Thelongerthecroprotationyears，theless theincidenceoflue-curedblackshankdisease.XiangyanNo.7 andChuanyan1O1hadthebestresistancetoblackshindisease.Itwasbetertotransplantat theendofMarch toearlyApril.heincidence and disease index of black shin disease ranged from 0 . 0 0 % to 1 9 . 6 0 % and 0.00 to 12.22 in Yibin tobacconic area，respectively.Theincidenceofblackshindiseaseasmoreserious inlowandmiddlealtiudetobacconicareas in Xingwen CoutyGongxian CountyandingsanoutyInonlusio，tilagesm，ainfallmidityaetyndransplatingateeimpoantco fecting theoccurrnceofblackshindiseaseinYibintobaco-growingarea，while temperatureandaltitudearesecondaryfactors.

Keywords：flue-cured tobacco;black shank;occurrence;influence factor

烤烟黑胫病是由烟草疫霉菌（Phytophthoraparasiticavar.nicotianae）引起的土传病害，又称黑秆疯、黑根等。（剩余6488字）