Results 21 to 30 of about 7,551 (220)

Health status of forest stands on permanent research plots in the Krkonoše Mts.

open access: yesJournal of Forest Science, 2010
Damage to beech, mixed (beech with spruce to spruce with beech) and spruce stands in the Krkonoše Mts. is described on the basis of evaluation of transition matrices describing the probability of a change in the assessment of defoliation of particular ...
S. Vacek, K. Matějka
doaj   +1 more source

Simulated impacts of insect defoliation on forest carbon dynamics

open access: yesEnvironmental Research Letters, 2012
Many temperate and boreal forests are subject to insect epidemics. In the eastern US, over 41 million meters squared of tree basal area are thought to be at risk of gypsy moth defoliation. However, the decadal-to-century scale implications of defoliation
D Medvigy   +3 more
doaj   +1 more source

An Experimental Comparison of Two Methods on Photosynthesis Driving Soil Respiration: Girdling and Defoliation.

open access: yesPLoS ONE, 2015
Previous studies with different experimental methods have demonstrated that photosynthesis significantly influences soil respiration (RS). To compare the experimental results of different methods, RS after girdling and defoliation was measured in five ...
Yanli Jing   +5 more
doaj   +1 more source

Effects of Defoliation on Phenolic Concentrations, Antioxidant and Antibacterial Activity of Grape Skin Extracts of the Varieties Blaufränkisch and Merlot (Vitis vinifera L.)

open access: yesMolecules, 2019
Vitis vinifera L. has been highlighted by its many positive effects on human health, including antibacterial, anti-inflammatory and antioxidant activity due to its rich phytochemical content. Removing six basal leaves has great potential to influence the
Valentina Pavić   +6 more
doaj   +1 more source

Estimate of soybean defoliation via digital image processing in software [PDF]

open access: yesRevista Ciência Agronômica, 2022
This study aimed to develop and validate the digital image processing software to quantify leaf coverage, employing the correlation of defoliation values and NDVI with various gradients of defoliation severity of the Asian soybean rust pathosystem.
Roger Nabeyama Michels   +5 more
doaj   +1 more source

Effects of time and intensity of defoliation on yield and yield components of corn

open access: yesپژوهشهای زراعی ایران, 2009
In order to evaluate the effects of time (20, 40, 60 and 100 days after sowing) and intensity of defoliation (0, 33, 66 and 100%) on a corn cultivar ( three way cross 647), a complete randomized block design with split plot arrangement and three ...
parisa mahmoodi   +3 more
doaj   +1 more source

Herbage accumulation, morphological composition, and nutritive value of Paspalum notatum CV. INIA Sepé

open access: yesAgrociencia Uruguay, 2021
Defoliation strategies determine sward canopy structure and affect forage accumulation and nutritive value. The objective of this study was to determine forage accumulation, morphological composition and nutritive value of inia Sepé subjected to ...
Diego Germán Giorello   +2 more
doaj   +1 more source

Environmental Impact of Silicic Magmatism in Large Igneous Province Events

open access: yesGeophysical Monograph Series, Page 133-151., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Scott E. Bryan
wiley  

+1 more source

2. On the Defoliation of the Coniferæ [PDF]

open access: yesProceedings of the Royal Society of Edinburgh, 1878
n ...
openaire   +1 more source

Defoliation of Oaks [PDF]

open access: yesNature, 1922
A REFERENCE to the defoliation of oaks, particularly on the borders of Surrey and Hampshire, by the larvae of Tortrix viridana, was made in NATURE on June 10. It concludes with the remark that the effect of the defoliation is to check “the growth of the trees to some extent for the time being, but is rarely more serious.”
openaire   +5 more sources

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