Mudanças climáticas e doenças da videira.

A Vitivinicultura no Brasil; Cenários de Mudanças Climáticas; Influência do clima na ocorrência de doenças; Mudanças climáticas e doenças da videira; Míldio da Videira; Oídio da Videira; Ferrugem da videira

Severidade do oídio da videira em Juazeiro-BA.

Suplemento, ref. 272. Edição dos Resumos do XXXV Congresso Paulista de Fitopatologia, Jaguariúna, fev. 2012

A comprehensive review of climate change and plant diseases in Brazil.

Analyzing the impacts of climate change on phytosanitary problems in Brazil is crucial due to the country’s special role in global food security as one of the largest producers of essential commodities. This review focuses on the effects of climate change on plant diseases and discusses its main challenges in light of Brazil’s diverse agricultural landscape. To assess the risk of diseases caused by fungi, bacteria, viruses, oomycetes, nematodes, and spiroplasms, we surveyed 304 pathosystems across 32 crops of economic importance from 2005 to 2022. Results show that diseases caused by fungi account for 79% of the pathosystems evaluated. Predicting the occurrence of diseases in a changing climate is a complex challenge, and the continuity of this work is strategic for Brazil’s agricultural defense. The future risk scenarios analyzed here aim to help guide disease mitigation for cropping systems. Despite substantial progress and ongoing efforts, further research will be needed to effectively prevent economic and environmental damage

Will increasing temperature and CO2 affect pumpkin early development in Brazilian Semi-Arid?

With rising levels of CO2 in atmosphere, understanding possible impacts on development and growth of plants becomes increasingly important. The aim of this study was to evaluate interaction between different temperatures and CO2 levels in germination and early development of seedlings of different species of pumpkin. Seeds of Cucurbita pepo cultivars ?Caserta? and ?Redonda?, and Cucurbita maxima ?Coroa? were sown in trays of 36 cells and held in growth chambers with different combinations of levels of CO2 and day/night temperatures. The experimental design was completely randomized in a 2 X 3 factorial scheme with two levels of CO2 concentration (360 and 550ppm) and three day/night temperatures (26/20, 29/26 and 32/26°C), with four replicates of 18 seedlings for each treatment. CO2 levels used caused different effects among cultivars for most variables, but a significant change in physiological behavior of seedlings with increasing CO2 concentration was not observed. Increase in temperature led to physiological changes in both seeds and seedlings. The predicted conditions of increasing concentration of atmospheric CO2 and temperature are damaging to production of pumpkin seedling

Mudanças climáticas e o semiárido brasileiro: o papel da Embrapa Semiárido e suas ações de pesquisa.

Mudanças climáticas globais; O Semiárido brasileiro e as mudanças climáticas; Ações desenvolvidas pela Embrapa Semiárido frente às mudanças climáticas; Monitoramento das condições ambientais; Ações de mitigação e adaptação às mudanças climáticas na região semiárida.bitstream/item/17552/1/Documentos-223.pd