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首页> 外文期刊>Plant Pathology >Efficacy of Vapam fumigant against clubroot (Plasmodiophora brassicae) of canola
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Efficacy of Vapam fumigant against clubroot (Plasmodiophora brassicae) of canola

机译：蒸气熏蒸剂对双低油菜根（Plasmodiophora brasicae）的功效

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摘要

Clubroot, caused by Plasmodiophora brassicae, has become a serious threat to canola (Brassica napus) production in western Canada. Experiments were conducted under greenhouse and field conditions to assess the effect of Vapam fumigant (dithiocarbamate; sodium N-methyldithiocarbamate) on primary and secondary infection by P.brassicae, clubroot severity, and growth parameters in canola. Preliminary trials showed a 12-16-fold reduction in primary and secondary infection and clubroot severity at all of the Vapam application rates (04-16mLL(-1) soil) assessed. Vapam was also found to be effective in reducing clubroot severity and improving seed yield of canola under field conditions. Application of Vapam at soil moisture levels in the range of 10-30% (v:v) had a large effect on both disease severity and infection rates and plant growth parameters. The results suggest that Vapam can effectively reduce clubroot severity and may be useful for the treatment of transplant propagation beds in brassica vegetable production, and for the containment of small, localized clubroot infestations in commercial canola crops.
机译：由芸苔疟原虫（Plasmodiophora brasicae）引起的Clubroot已严重威胁加拿大西部油菜（Brassica napus）的生产。在温室和田间条件下进行了实验，以评估Vapam熏蒸剂（二硫代氨基甲酸酯; N-甲基二硫代氨基甲酸钠）对芸苔假单胞菌原发和继发感染的影响，杆根的严重性以及双低油菜籽中的生长参数。初步试验表明，在评估的所有Vapam施用量（04-16mLL（-1）土壤）下，原发和继发感染以及根肿病严重程度降低了12-16倍。还发现，在田间条件下，Vapam可有效降低菜根的严重程度和提高双低油菜籽的种子产量。在土壤水分含量为10％至30％（v：v）的范围内施用Vapam对疾病的严重程度，感染率和植物生长参数都有很大影响。结果表明，Vapam可以有效降低根茎病的严重程度，并可能用于治疗芸苔属蔬菜生产中的移栽繁殖床，以及抑制商业化双低油菜籽作物中局部出现的较小的根茎侵扰。

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