Controle do oídio da videira no Submédio do vale do São Francisco utilizando o SISALERT

O objetivo deste trabalho foi avaliar o controle do oídio da videira utilizando o SISALERT

Germinação de Colletotrichum gloeosporioides f.sp. cepae em diferentes temperaturas.

O objetivo deste trabalho foi avaliar a germinação de esporos do C.gloeosporioides isolado de cebola em diferentes temperaturas

Germinação de sementes de cebola em diferentes temperaturas.

O objetivo deste trabalho foi avaliar o efeito do aumento da temperatura sobre a germinação de sementes de cebola

Composição morfológica e resposta produtiva de acessos do gênero Manihot.

Neste estudo, objetivou-se avaliar a composição morfológica e a resposta produtiva de acessos de Manihot sp

Genetic diversity of Macroptilium accessions considering the increase in air temperature.

Climate changes can influence the genetic diversity of forage plants, which may contribute to theimprovement and development of new species. Therefore, this research aimed to evaluate the influence of temperature increase on the genetic diversity of Macroptilium accessions based on morphoagronomic descriptors. The experiment was carried out in a growth chamber in a 2×16 factorial arrangement (temperature regimes x Macroptilium accessions), with the temperatures consisting of T1 (20?26?33 °C) and T2 (24.8?30.8?37.8 °C) and 16 accessions. Eleven morphoagronomic descriptors allowed estimating the diversity among accessions. The measurements of genetic dissimilarity enabled us to observe the genetic distance between the studied materials, standing out the accessions T1.M3 and T2.S4 as the most divergent (446.01). The morphoagronomic descriptors percentage of leaves and stem diameter were the most efficient for estimating the diversity between access. Genetic variability points to the adaptation of Macroptilium accessions in the climate change scenario. The accessions more divergent can be explored in genetic breeding programs for the species aiming at the expansion of genetic variability as an adaptation mechanism to heat stress

Germinação de Alternaria porri em diferentes temperaturas.

O objetivo deste trabalho foi avaliar a germinação de esporos do A. porri isolados de cebola em diferentes temperaturas

Crescimento e esporulação de Colletotrichum gloeosporioides f.sp. cepae sob diferentes temperaturas.

O objetivo deste trabalho foi avaliar a influência da temperatura no crescimento micelial e na esporulação de C. gloeosporioides f. sp. cepae

Scientific review of the impact of climate change on plant pests: a global challenge to prevent and mitigate plant pest risks in agriculture, forestry and ecosystems.

Climate change represents an unprecedented challenge to the world?s biosphere and to the global community. It also represents a unique challenge for plant health. Human activities and increased market globalization, coupled with rising temperatures, has led to a situation that is favourable to pest movement and establishment. This scientific review assesses the potential effects of climate change on plant pests and consequently on plant health. The evidence assessed strongly indicates that climate change has already expanded some pests? host range and geographical distribution, and may further increase the risk of pest introduction to new areas. This calls for international cooperation and development of harmonized plant protection strategies to help countries successfully adapt their pest risk management measures to climate change.bitstream/item/224381/1/Scientific-review-of-the-impact-of-climate-2021.pd

Climate change and pathways used by pests as challenges to plant health in agriculture and forestry.

Climate change already challenges people?s livelihood globally and it also affects plant health. Rising temperatures facilitate the introduction and establishment of unwanted organisms, including arthropods, pathogens, and weeds (hereafter collectively called pests). For example, a single, unusually warm winter under temperate climatic conditions may be sufficient to assist the establishment of invasive plant pests, which otherwise would not be able to establish. In addition, the increased market globalization and related transport of recent years, coupled with increased temperatures, has led to favorable conditions for pest movement, invasion, and establishment worldwide. Most published studies indicate that, in general, pest risk will increase in agricultural ecosystems under climate-change scenarios, especially in today?s cooler arctic, boreal, temperate, and subtropical regions. This is also mostly true for forestry. Some pests have already expanded their host range or distribution, at least in part due to changes in climate. Examples of these pests, selected according to their relevance in different geographical areas, are summarized here. The main pathways used by them, directly and/or indirectly, are also discussed. Understanding these path-ways can support decisions about mitigation and adaptation measures. The review concludes that preventive mitigation and adaptation measures, including biosecurity, are key to reducing the projected increases in pest risk in agriculture, horticulture, and forestry. Therefore, the sustainable management of pests is urgently needed. It requires holistic solutions, including effective phytosanitary regulations, globally coordinated diagnostic and surveillance systems, pest risk modeling and analysis, and preparedness for pro-active management

Germinação de sementes de aroeira (Myracrodruon urundeuva Allemão) e incidência de fungos em elevadas temperaturas.

O objetivo deste trabalho foi avaliar a incidência de fungos e a germinação de sementes de aroeira, em condições de elevadas temperaturas