Common burdock (Arctium minus): a common weed of nonarable land in Orestiada, Greece

Q3 Agricultural and Biological Sciences
C. Damalas, C. Alexoudis, S. Koutroubas
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引用次数: 1

Abstract

Summary Common burdock (Arctium minus) is a common biennial weed of non-arable land in typical rural settings of Orestiada, Greece. The aim of this study was to describe the basic morphological traits of this species throughout the main phenological stages of its life cycle and to obtain some insight into its growth and productivity in Orestiada. Based on our observations, the plants occurred most commonly in moist and fertile soils, usually as isolated individuals or in small patches near the parent plants. The species is characterized by its large basal ‘elephant-ear’ leaves during the vegetative stage, appearing in alternate arrangement, with irregularly wavy and non-toothed edges, as well as with long hollow stalks forming a noticeable furrow on the top. By monitoring individual plants, it was found that fl owering (in the second year of growth) mostly occurred from late June up to early August. The fl owers were purple, occurring in bristly heads at the top of the stem. The bristly heads formed a fruit, containing small black seeds. The average number of capitula per plant, from randomly selected populations in Orestiada, was found to be 69.7 and 57.7 respectively, whereas the mean seed number per capitulum reached 30.3 and 33.3 seeds, respectively
牛蒡(牛蒡):希腊奥雷斯蒂亚达非耕地上的一种常见杂草
牛蒡(牛蒡)是一种常见的两年生杂草,生长在希腊奥雷斯蒂亚达典型的农村地区的非耕地上。本研究的目的是描述该物种在其生命周期的主要物候阶段的基本形态特征,并对其在奥雷斯蒂亚达的生长和生产力有一些了解。根据我们的观察,这些植物最常见于湿润和肥沃的土壤中,通常是孤立的个体或在母本植物附近的小块土地上。该物种的特点是在营养阶段其巨大的基部“象耳”叶,交替排列,具有不规则的波浪和无齿的边缘,以及在顶部形成明显的沟的长空心茎。通过单株监测发现,花期(生长第二年)主要发生在6月下旬至8月上旬。花是紫色的,在茎的顶端形成刚毛状的头状花序。刚毛状的头形成果实,内含黑色的小种子。在随机选择的种群中,平均每株头状花序数分别为69.7和57.7个,平均每头状花序种子数分别为30.3和33.3个
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来源期刊
Hellenic Plant Protection Journal
Hellenic Plant Protection Journal Agricultural and Biological Sciences-Agronomy and Crop Science
CiteScore
1.50
自引率
0.00%
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