Abstract

The results of the herbological analyses of the seed lots of Sinapis alba and Phacelia tanacetifolia received in the trading networks of Tomsk oblast are presented. The species composition of weedy plants which are able to spread by speirochory is revealed. A high degree of weed infestation of green manure seeds, including diaspores of invasive and potentially invasive species (as well as quarantine plants), has been recorded. In seed lots of Sinapis alba and Phacelia tanacetifolia supplied to Tomsk oblast in 2017–2018 from the European part of Russia and the Siberian Federal District, diaspores of 58 weed species were found, among which nine species are invasive, including one quarantine species (Acroptilon repens). Along with a large diversity of weed species, a high total contamination (from 340 to 86 500 pcs/kg) of green manure seeds, including the most harmful weeds, is noted. For example, diaspores of seven weed species recognized as dangerous and one species which is especially dangerous for products of plant origin were present in the studied samples of Sinapis alba and Phacelia tanacetifolia. A large threat is also posed by the contamination of the studied green manure seeds by weeds with a pronounced dormant period, the seeds of which replenish the soil bank of agrocenoses, ensuring their contamination for many years to come. To ensure the agricultural safety of the region, strict control of the contamination of imported seed lots, their culling, and preventing the sale of heavily contaminated seed lots are necessary.

中文翻译：

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托木斯克州农杆菌病中稻瘟病菌对外来植物的分布

摘要

该种子批的herbological分析结果白芥和Phacelia tanacetifolia在州都托木斯克的贸易网络接收。揭示了杂草植物的物种组成，它们可以通过飞虱来传播。据记录，绿肥种子高度杂草侵染，包括入侵性和潜在入侵性物种（以及检疫植物）的渗水孢子。在2017-2018年从俄罗斯欧洲部分和西伯利亚联邦区供应给托木斯克州的白叶芥和楠木种子中发现了58种杂草的渗水孢子，其中有9种具有入侵性，其中一种是检疫物种（Acroptilon）笔）。除了杂草种类繁多以外，还注意到包括最有害杂草在内的绿色肥料种子的总污染程度很高（从340到86500个/公斤）。例如，在研究的Sinapis alba和Phacelia tanacetifolia样品中，存在被认为是危险的7种杂草种类的硬孢子和一种对植物来源的产品特别危险的杂草。。休眠期明显的杂草对研究的绿肥种子的污染也构成了很大的威胁，其种子补充了农杆菌的土壤库，确保了其在未来多年的污染。为了确保该地区的农业安全，必须严格控制进口种子批次的污染，剔除并防止出售严重污染的种子批次。