Incubation period of Hemileia vastatrix in coffee plants in Brazil simulated under climate change

Summa Phytopathologica

Raquel Ghini²  Emília Hamada²  Mário José Pedro Júnior¹  Renata Ribeiro Do Valle Gonçalves¹ 

[1] ,Embrapa Meio AmbienteJaguariúna SP

关键词: Coffea arabica;    coffee rust;    future scenarios;    global warming;    Coffea arabica;    ferrugem do cafeeiro;    cenários futuros;    aquecimento global;   

DOI  :  10.1590/S0100-54052011000200001

来源: SciELO

【 摘 要 】

Risk analysis of climate change on plant diseases has great importance for agriculture since it allows the evaluation of management strategies to minimize future damages. This work aimed to simulate future scenarios of coffee rust (Hemileia vastatrix) epidemics by elaborating geographic distribution maps using a model that estimates the pathogen incubation period and the output from three General Circulation Models (CSIRO-Mk3.0, INM-CM3.0, and MIROC3.2.medres). The climatological normal from 1961-1990 was compared with that of the decades 2020s, 2050s and 2080s using scenarios A2 and B1 from the IPCC. Maps were prepared with a spatial resolution of 0.5 × 0.5 degrees of latitude and longitude for ten producing states in Brazil. The climate variables used were maximum and minimum monthly temperatures. The maps obtained in scenario A2 showed a tendency towards a reduction in the incubation period when future scenarios are compared with the climatological normal from 1961-1990. A reduction in the period was also observed in scenario B1, although smaller than that in scenario A2.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License