利用空气热时间预测灰麦草幼苗出苗时间。地中海气候下的无菌燕麦

IF 1.9 Q2 AGRICULTURE, MULTIDISCIPLINARY
F. Bastida, Kambiz Mootab Laleh, J. González-Andújar
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引用次数: 0

摘要

无菌线虫亚种。不育燕麦(无菌燕麦)是一种令人烦恼的冬季谷物杂草,无论是在其从地中海到南亚的本土范围内,还是在美洲,北欧和澳大利亚引入的地区。更好地了解这种杂草在谷物田的出苗模式,有助于在生长早期进行控制,从而在不断变化的气候条件下发挥功效。为此,本研究的目的是基于累积空气热时间(CTT,℃day)建立并验证该杂草的田间出苗模型。在西班牙南部的实验和商业领域进行了模型设置和评价试验。比较了两种替代模型Gompertz和Weibull表示出现时间过程的能力。威布尔模型对数据的拟合效果最好。独立试验结果表明,该模型预测幼苗出苗效果良好。根据所建立的模型,在130 CTT发生羽化,在448 CTT和632 CTT分别达到50%和90%羽化。结果表明,该模型可作为菌种控制的决策工具,为种植者提供参考。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Using air thermal time to predict the time course of seedling emergence of Avena sterilis subsp. sterilis (sterile oat) under Mediterranean climate
Avena sterilis subsp. sterilis (sterile oat) is a troublesome grass weed of winter cereals both in its native range encompassing the Mediterranean up to South Asia, and in regions of America, Northern Europe and Australia where it is introduced. A better understanding of seedling emergence patterns of this weed in cereal fields can help control at early growth stages benefiting efficacy under a changing climate. With this aim, the objective of this research was to develop and validate a field emergence model for this weed based on cumulative air thermal time (CTT, ℃ day). Experiments for model setting and evaluation were carried out in experimental and commercial fields in southern Spain. Two alternative models, Gompertz and Weibull, were compared for their ability to represent emergence time course. The Weibull model provided the best fit to the data. Evaluation through independent experiments showed good model performance in predicting seedling emergence. According to the developed model, the onset of emergence takes place at 130 CTT, and 50% and 90% emergence is achieved at 448 and 632 CTT, respectively. Results indicate that this model could be useful for growers as a tool for decision-making in A. sterilis control.
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来源期刊
AIMS Agriculture and Food
AIMS Agriculture and Food AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
3.70
自引率
0.00%
发文量
34
审稿时长
8 weeks
期刊介绍: AIMS Agriculture and Food covers a broad array of topics pertaining to agriculture and food, including, but not limited to:  Agricultural and food production and utilization  Food science and technology  Agricultural and food engineering  Food chemistry and biochemistry  Food materials  Physico-chemical, structural and functional properties of agricultural and food products  Agriculture and the environment  Biorefineries in agricultural and food systems  Food security and novel alternative food sources  Traceability and regional origin of agricultural and food products  Authentication of food and agricultural products  Food safety and food microbiology  Waste reduction in agriculture and food production and processing  Animal science, aquaculture, husbandry and veterinary medicine  Resources utilization and sustainability in food and agricultural production and processing  Horticulture and plant science  Agricultural economics.
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