Results 41 to 50 of about 1,292,238 (202)

Timing of Drought Triggers Distinct Growth Responses in Holm Oak: Implications to Predict Warming-Induced Forest Defoliation and Growth Decline [PDF]

open access: yes, 2015
Droughts negatively impact forests by reducing growth and increasing defoliation leading to forest dieback as the climate becomes warmer and drier. However, the timing and severity of droughts determine how differently or intensively water shortage ...
Camarero, Jesús Julio   +2 more
core   +3 more sources

Visible ozone-like injury, defoliation, and mortality in two Pinus uncinata stands in the Catalan Pyrenees (NE Spain) [PDF]

open access: yes, 2016
Ozone concentrations in the Pyrenees have exceeded the thresholds for forest protection since 1994. We surveyed the severity of visible O₃ injuries, crown defoliation, and tree mortality of Pinus uncinata, the dominant species in subalpine forests in ...
Diaz-de-Quijano, Maria   +5 more
core   +2 more sources

Impact of pine looper defoliation in Scots pine [PDF]

open access: yes, 2003
Widespread defoliation of forests caused by insects or fungi cause economic losses throughout the world. Successful outbreak management involves cost/benefit estimation and requires knowledge of potential yield losses. Currently, such knowledge is scarce.
Cedervind, Jan
core  

Pre- and post-windstorm leaf area index of Carpinus betulus trees in an urban forest patch

open access: yesİstanbul Üniversitesi Orman Fakültesi Dergisi, 2016
Natural disturbances are rather rare for the urban forests compared to the anthropogenic ones. However, forcible natural impact may be substantially destructive such as severe storms.
Melih Öztürk, İlyas Bolat
doaj   +1 more source

Fungicide mixtures to control Asian soybean rust control in regions of Brazil [PDF]

open access: yesRevista Ciência Agronômica
High soybean grain yield is based on adequate crop management, mainly on disease prevention and control, especially Asian soybean rust (ASR), which causes great crop damage.
Gilberto Macedo Siqueira Filho   +4 more
doaj   +1 more source

Temporal progress of teak rust in a tropical area of Tocantins State, Brazil [PDF]

open access: yesActa Amazonica, 2017
Rust, caused by Olivea neotectonae, stands out as the main teak disease, causing premature defoliation regardless of the tree’s growth stage. In this study, we aimed to assess the temporal progress of rust in adult teak plants in southern Tocantins State
Nathana Izabela Silva SALES   +4 more
doaj   +1 more source

Defoliation of sweet corn plants under irrigation depths and its impact on gas exchange

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental
The objective of this work was to evaluate leaf gas exchanges of sweet corn as a function of defoliation when submitted to different irrigation depths. The experimental design was randomized blocks in split-plot scheme, with four irrigation depths in the
Osvaldir F. dos Santos   +5 more
doaj   +1 more source

Desfolha, população de plantas e precocidade do milho afetam a incidência e a severidade de podridões de colmo Defoliation, plant population, and earliness of maize affect the incidence and severity of stalk rots

open access: yesCiência Rural, 2003
As relações entre fonte e dreno interferem sobre a ocorrência de podridões de colmo na cultura do milho (Zea mays). O estudo foi conduzido em Lages, SC, para avaliar o efeito da desfolha, população de plantas e híbridos sobre as podridões do colmo do ...
Luiz Eduardo Bassay Blum   +4 more
doaj   +1 more source

Wind speed, sun exposure and water status alter sunburn susceptibility of grape berries

open access: yesFrontiers in Plant Science, 2023
In the context of climate change, yield and quality losses from sunburn necrosis are challenging grape growers around the world. In a previous review, we identified the role of wind speed, duration of heat exposure, drought stress and adaptation as major
Kai Müller   +3 more
doaj   +1 more source

Control of target spot of tomato with fungicides, systemic acquired resistance activators, and a biocontrol agent

open access: yesPlant Protection Science, 2002
Control of target spot of tomato, caused by the fungus Corynespora cassiicola (Berk. & Curt.) Wei., was studied in three seasons in southern Florida, USA.
Ken Pernezny   +4 more
doaj   +1 more source

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