DOI: 10.1111/gcb.12180
论文题名: Effects of experimental warming on fungal disease progress in oilseed rape
作者: Siebold M. ; von Tiedemann A.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期: 6 起始页码: 1736
结束页码: 1747
语种: 英语
英文关键词: Climate change
; Degree-days
; Leptosphaeria maculans/Phoma lingam
; Sclerotinia sclerotiorum
; Soil warming
; Verticillium longisporum
Scopus关键词: climate change
; climate effect
; fungal disease
; global warming
; growth rate
; pathogen
; regression analysis
; soil temperature
; article
; Brassica
; greenhouse effect
; microbiology
; mycosis
; pathology
; plant disease
; Brassica
; Global Warming
; Mycoses
; Plant Diseases
; Germany
; Lower Saxony
; Brassica napus
; Leptosphaeria
; Leptosphaeria maculans
; Phoma
; Sclerotinia sclerotiorum
; Verticillium dahliae var. longisporum
英文摘要: Global warming will influence the growth and development of both crops and pathogens. The aims of this study were to investigate potential effects of future warming on oilseed rape growth and the epidemiology of the three economically important pathogens Verticillium longisporum, Sclerotinia sclerotiorum, and Leptosphaeria maculans (anamorph: Phoma lingam). We utilized climate chambers and a soil warming facility, where treatments represented regional warming scenarios for Lower Saxony, Germany, by 2050 and 2100, and compared results of both approaches on a thermal time scale by calculating degree-days (dd) from day of sowing, December 1st and March 1st until sampling, the latter correlating best with disease progress. Regression analysis showed that plant growth and growth stages in spring responded almost linearly to increasing thermal time until 1000-1500 dd. Colonization of plant tissue by V. longisporum showed an exponential increase when exceeding 1300-1500 dd and reaching plant growth stage BBCH 74/75 (pod development). V. longisporum colonization of plants may be advanced, potentially leading to higher inoculum densities after harvest and increased economic importance of this pathogen under future warming. Sclerotia germination of S. sclerotiorum reached its maximum at 600-900 dd. Advance of these critical degree-days may lead to earlier apothecia production, potentially advancing the infection window, whereas the future importance of S. sclerotiorum may remain constant. Severity of phoma crown canker increased linearly with increasing thermal time, but showed also large variation in response to the warming scenarios, suggesting that factors such as canopy microclimate in fall or leaf shedding over winter may play a bigger role for L. maculans infection and disease severity than higher soil temperatures. Thermal time was a suitable tool to combine and integrate data on biological responses to soil and air temperature increases from climate chamber and field experiments. © 2013 Blackwell Publishing Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62421
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Crop Sciences, Division of Plant Pathology and Crop Protection, Georg-August-University of Göttingen, Grisebachstr 6, Göttingen, D-37077, Germany
Recommended Citation:
Siebold M.,von Tiedemann A.. Effects of experimental warming on fungal disease progress in oilseed rape[J]. Global Change Biology,2013-01-01,19(6)