Influence of elevated atmospheric CO2 concentration on common weeds in Scandinavian agriculture

IF 1.7 4区 农林科学 Q2 AGRONOMY Acta Agriculturae Scandinavica Section B-Soil and Plant Science Pub Date : 1998-09-01 DOI:10.1080/09064719809362491
Arne Saeb, L. Mortensen
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引用次数: 5

Abstract

This study investigated the influence of elevated CO2 on three perennial weed species (Achillea millefolium, Leontodon autumnalis and Rumex acetosa) and seven annual species (Chenopodium album, Matricaria matricarioides, Poa annua, Polygoniini persicaria, Senecio vulgaris, Spergula arvensis and Stellaria media). The study was carried out during the period 3 May to 5 August in ten field chamber units of 9 m2 in a cool (12.6°C) maritime climate under long days (15.8–18.1 h day‐1) on the south‐west coast of Norway (59° N, 6° E). Dry weights of the seven annual species were not significantly affected by the CO2 concentration. Of the three perennial species, L. autumnalis increased in dry weight by 27% and A. millefolium by 19% at elevated compared with ambient CO2 concentration. Plant height increased by 8% in L. autumnalis and decreased by 12 and 10% in M. matricarioides and P. annua respectively. Leaf size increased by 32% and specific leaf area decreased by 23% in P. persicaria at elevated CO2, while the o...
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大气CO2浓度升高对斯堪的纳维亚农业常见杂草的影响
研究了CO2浓度升高对3种多年生杂草(千叶Achillea millefolium, Leontodon autumnalis和Rumex acetosa)和7种一年生杂草(Chenopodium album, Matricaria matricarioides, Poa annua, Polygoniini pericaria, Senecio vulgaris, Spergula arvensis和Stellaria media)的影响。研究于5月3日至8月5日在挪威西南海岸(59°N, 6°E)的凉爽(12.6°C)海洋性气候下(15.8-18.1 h day‐1)进行。7种一年生物种的干重不受CO2浓度的显著影响。在3种多年生植物中,与环境CO2浓度相比,秋菖蒲和千叶菖蒲的干重分别增加了27%和19%。秋菖蒲株高增加8%,黄菖蒲和黄花菖蒲株高分别减少12%和10%。CO2浓度升高时,桃金酸根叶片大小增加32%,比叶面积减少23%;
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来源期刊
CiteScore
4.40
自引率
0.00%
发文量
56
审稿时长
2.3 months
期刊介绍: Acta Agriculturæ Scandinavica Section B publishes original research in applied soil and plant science with special attention given to to crop production in agri- and horticultural systems. We welcome manuscripts dealing with: Climate smart and sustainable crop production systems Water and nutrient efficiency Soil conservation and productivity Precise agriculture systems Applications of bio- and nanotechnology Digitalisation and robotics Soil-plant interactions Acta Agriculturæ Scandinavica, Section B – Soil & Plant Science forms part of a series of titles published on behalf of the Nordic Association of Agricultural Science (NJF). The series also includes Section A - Animal Science .
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