Beckie Hugh J, Owen Mechelle J, Borger Catherine P D, Gill Gurjeet S, Widderick Michael J
Australian Herbicide Resistance Initiative, School of Agriculture and Environment, The University of Western Australia, Perth 6009, Australia.
Department of Primary Industries and Regional Development, Northam 6401, Australia.
Plants (Basel). 2020 Dec 9;9(12):1737. doi: 10.3390/plants9121737.
Weed risk assessment systems are used to estimate the potential weediness or invasiveness of introduced species in non-agricultural habitats. However, an equivalent system has not been developed for weed species that occur in agronomic cropland. Therefore, the Agricultural Weed Assessment Calculator (AWAC) was developed to quantify the present and potential future adverse impact of a weed species on crop production and profitability (threat analysis), thereby informing or directing research, development, and extension (RDE) investments or activities. AWAC comprises 10 questions related primarily to a weed's abundance and economic impact. Twenty weed species from across Australia were evaluated by AWAC using existing information and expert opinion, and rated as high, medium, or low for RDE prioritization based on total scores of 70 to 100, 40 to <70, or <40, respectively. Five species were rated as high (e.g., Gaud.), eight were rated as medium (e.g., spp.), and seven were rated as low (e.g., L.). Scores were consistent with the current state of knowledge of the species' impact on grain crop production in Australia. AWAC estimated the economic or agronomic threat of 20 major or minor agricultural weeds from across Australia. The next phase of development is the testing of AWAC by weed practitioners (e.g., agronomists, consultants, farmers) to verify its utility and robustness in accurately assessing these and additional weed species.
杂草风险评估系统用于估计非农业生境中引入物种的潜在杂草性或入侵性。然而，尚未针对农艺作物田中出现的杂草物种开发出等效的系统。因此，开发了农业杂草评估计算器（AWAC），以量化杂草物种对作物生产和盈利能力的当前及未来潜在负面影响（威胁分析），从而为研究、开发和推广（RDE）投资或活动提供信息或指导。AWAC包含10个主要与杂草的丰度和经济影响相关的问题。利用现有信息和专家意见，AWAC对来自澳大利亚各地的20种杂草进行了评估，并根据70至100分、40至<70分或<40分的总分，分别将其评为高、中或低，以确定RDE的优先级。5个物种被评为高（例如，Gaud.），8个被评为中（例如，spp.），7个被评为低（例如，L.）。评分与该物种对澳大利亚谷物作物生产影响的当前知识状况一致。AWAC估计了来自澳大利亚各地的20种主要或次要农业杂草的经济或农艺威胁。开发的下一阶段是由杂草从业者（如农学家、顾问、农民）对AWAC进行测试，以验证其在准确评估这些及其他杂草物种方面的实用性和稳健性。
