Results 81 to 90 of about 36,944 (324)

Sensitivity to demethylation‐inhibiting fungicides and induced expression of CYP51 associated with tebuconazole resistance in Alternaria species on mandarin in Brazil

Pest Management Science, EarlyView.
Tebuconazole‐resistant isolates overexpress CYP51 and, when tested at field rates, did not reduce ABS severity, whereas difenoconazole and mefentrifluconazole remained effective. Abstract BACKGROUND Alternaria brown spot (ABS), caused by Alternaria spp., is an important disease affecting mandarin production in several citrus‐growing regions worldwide ...
Thiago de Aguiar Carraro, Yong Luo, Boris X. Camiletti, Themis J. Michailides, Victor Gabri, Geraldo José Silva‐Junior, Lilian Amorim, Louise Larissa May De Mio   +7 more
wiley   +1 more source

Defoliation percentage in two soybean cultivars at different growth stages

Revista Brasileira de Engenharia Agrícola e Ambiental, 2015
The objective of this study was to evaluate the agronomic variables due to the effects of different levels of defoliation in the phenological phases of two soybean cultivars. The experiment was conducted during the 2011/2012 season, in a randomized block
Cláudio A. da S. Glier, José B. Duarte Júnior, Gabriel M. Fachin, Antonio C. T. da Costa, Vandeir F. Guimarães, Chrismam R. Mrozinski   +5 more
doaj   +1 more source

Selective leaf surface defenses: trichomes trap herbivorous leafminers but spare parasitoid wasps

Pest Management Science, EarlyView.
Hooked trichomes on kidney bean leaves selectively entrap leafminer flies but rarely affect parasitoid wasps. This morphological barrier enables pest suppression with minimal impact on beneficial insects, offering insights for breeding pest‐resistant cultivars compatible with biological control. Abstract BACKGROUND Leafminers [e.g., Liriomyza trifolii (
Yuta Ohata, Yuhko Sawada, Yuki Ishihara, Yohsuke Tagami   +3 more
wiley   +1 more source

Transcriptome analysis reveals common and distinct mechanisms for sheepgrass (Leymus chinensis) responses to defoliation compared to mechanical wounding.

PLoS ONE, 2014
BackgroundHerbivore grazing is a multiple-component process that includes wounding, defoliation, and saliva deposition. Despite the extensive published research on mechanical wounding and defoliation, no analysis to identify the genes that specify ...
Shuangyan Chen, Yueyue Cai, Lexin Zhang, Xueqing Yan, Liqin Cheng, Dongmei Qi, Qingyuan Zhou, Xiaoxia Li, Gongshe Liu   +8 more
doaj   +1 more source

Investigating boreal forest successional stages in Alaska and Northwest Canada using UAV‐LiDAR and RGB and a community detection network

Remote Sensing in Ecology and Conservation, EarlyView.
This study develops a novel application of UAV‐LiDAR and Red Green Blue (RGB) data and network analysis to enhance our understanding of boreal forest succession. The results indicate that tree height and spectral variables are the most influential predictors of plant functional type in random forest algorithms, and high overall accuracies were attained.
Léa Enguehard, Birgit Heim, Ulrike Herzschuh, Viktor Dinkel, Glenn Juday, Santosh Panda, Nicola Falco, Jacob Schladebach, Jakob Broers, Stefan Kruse   +9 more
wiley   +1 more source

Monitoring of sawfl y ( Hymenoptera: Tenthredinidae Hymenoptera: Tenthredinidae ) infestation on spruce

Journal of Forest Science, 2002
A new method for evaluating damage caused by tenthredinids to Norway spruce stands is based on defoliation of the top whorls. A scale with four classes of defoliation was established that is easy to use. Defoliation can be displayed graphically on a grid
J. Holuša, O. Holuša
doaj   +1 more source

Breaking down seagrass fragmentation in a marine heatwave impacted World Heritage Area

Remote Sensing in Ecology and Conservation, EarlyView.
Habitat fragmentation can exacerbate the impacts of habitat loss but is rarely quantified in marine environments. Using satellite‐derived habitat maps, we identify widespread seagrass fragmentation following a marine heatwave that contributed to a dramatic shift in seascape structure in the Shark Bay World Heritage Area.
Michael D. Taylor, Simone Strydom, Matthew W. Fraser, Ana M. M. Sequeira, Gary A. Kendrick   +4 more
wiley   +1 more source

Xylem Pit Anatomy and Minimum Leaf Conductance Drive Drought Mortality in Pinus pinaster. [PDF]

Plant Cell Environ
ABSTRACT Drought‐triggered forest die‐off events are commonly attributed to hydraulic failure, carbon starvation, or a combination of the two. Nevertheless, the anatomical and physiological traits that make trees vulnerable to drought in the field are often unknown, hindering predictive efforts.
Camarero JJ, Colangelo M, Valeriano C, Gazol A, González de Andrés E, Alonso-Forn D, Voltas J, Torres-Ruiz JM, Delzon S, Badel E, Gil-Pelegrín E.   +10 more
europepmc   +2 more sources

Internal physiological drivers of leaf development in trees: Understanding the relationship between non‐structural carbohydrates and leaf phenology

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant phenology is crucial for understanding plant growth and climate feedback. It affects canopy structure, surface albedo, and carbon and water fluxes. While the influence of environmental factors on phenology is well‐documented, the role of plant intrinsic factors ...
Yunpeng Luo, Constantin Zohner, Thomas W. Crowther, Jianlan Feng, Günter Hoch, Peng Li, Andrew D. Richardson, Yann Vitasse, Arthur Gessler   +8 more
wiley   +1 more source

Below the leaves: Integrating above‐ and below‐ground phenology for earth‐system predictability

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Almost every aspect of biological systems has phenology—a pattern in activity or function linked to annual cycles. Most terrestrial phenology research focusses on leaves, the onset of leaf out or senescence.
Kendalynn Morris, Richard Nair
wiley   +1 more source