Results 101 to 110 of about 17,824 (223)

Defoliation of Oaks [PDF]

open access: yesNature, 1922
IN view of the deplorable effect of repeated defoliation of oaks by the larvae of Tortrix viridana, as noted by Mr. E. W. Swanton in NATURE for August 19, p. 250, it may be useful to remind planters that there are two distinct races of British oak (Quercus robur, Linn.), to which some botanists have assigned specific rank as Q.
openaire   +2 more sources

Inflorescence Photosynthesis Determines Resource Allocation, Seed Production and Senescence in an Agricultural Weed

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Agricultural weeds typically combine high reproductive output with fast vegetative growth. Here we analyzed the processes that overcome a potential trade‐off between vegetative growth and reproduction in the weed Avena fatua. We determined photosynthetic function of inflorescences and analyzed the transcriptomes of individual inflorescence ...
Soualihou Soualiou   +4 more
wiley   +1 more source

Relationship between soybean plant defoliation and Asian soybean rust severity

open access: yes, 2019
Data from experiments conducted in the field with eight fungicide mixtures added of five mancozeb levels were used to generate gradients of soybean rust severity, plant defoliation, and soybean grain yield. The data were subjected to correlation analysis
Mateus Zanatta (6546740)   +2 more
core   +1 more source

Regrowth dynamics and morpho-physiological characteristics of Plantago lanceolata under different defoliation frequencies and intensities [PDF]

open access: yes
Traditional pastures in temperate regions face limitations such as reduced growth and nutritional quality during the summer season. Plantain (P. lanceolata L.) offers advantages like increased yield and decreased nitrogen losses from grazing ruminants ...
Aguilar, R.   +10 more
core   +1 more source

Cotton rotation with single and multispecies cover crops affects yield, quality, and economic outcomes

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 4, December 2026.
Abstract Cover crops (CCs) have gained popularity in continuous crop production systems due to their agroecosystem benefits. This study evaluated the effects of nine CC treatments (single or multispecies) and no cover crop (noCC) on cotton (Gossypium hirsutum L.) growth characteristics, production, and economic returns in the Mid‐South United States ...
Mehtab Muhammad Aslam   +4 more
wiley   +1 more source

Effect of defoliation on patterns of carbon exudation from Agrostis capillaris

open access: yes, 2004
Grassland ecosystems are important global sinks and sources of atmospheric carbon (C). In this study, we used an in-situ 13CO2 tracer approach to quantify differences in short-term C exudation from defoliated and non-defoliated Agrostis capillaris (L ...
Philip Murray   +12 more
core   +1 more source

Leaf economics and tissue turnover dynamics in four perennial C4 grasses

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 4, December 2026.
Abstract Warm‐season perennial grasses are important components of pasture systems in the United States, yet their functional characteristics and relationships with productive attributes remain poorly understood. This study evaluated tissue flow dynamics and leaf economic traits in four C4 forage grasses: eastern gamagrass (Tripsacum dactyloides (L.) L.
Emanoella K. S. Otaviano   +5 more
wiley   +1 more source

Impact of cultural practices on two‐spotted spider mite (Tetranychus urticae Koch) infestation in tomato cultivation in the Central Rift Valley of Ethiopia

open access: yesCrop, Forage &Turfgrass Management, Volume 12, Issue 2, December 2026.
Abstract The two‐spotted spider mite (TSSM; Tetranychus urticae Koch) is a major pest of tomato (Solanum lycopersicum L.), causing substantial yield and quality losses in Ethiopia and worldwide. The present study evaluated the impact of tomato branch pruning and trellising on TSSM populations and yield in the Central Rift Valley tomato production area ...
Amhaeyesus Belete   +2 more
wiley   +1 more source

Soybean Leaf Defoliation Data Set For DefoNet

open access: yes
Soybean leaf defoliation data set for a CNN model, DefoNet, used in my paper "Assessing the Efficacy of Machine Learning Techniques to Characterize Soybean Defoliation from Unmanned Aerial Vehicles"
Zhang, Zichen
core   +1 more source

Minimising sunburn necrosis on Vitis vinifera L. ‘Riesling’ grapes by defoliation, photo- and thermal protection [PDF]

open access: yes
Sunburn on grapes has emerged as an economic concern in recent decades. The phenomenon can be attributed to climatic changes, characterised by elevated air temperatures and intense solar radiation, leading to increased crop failures as well as quality ...
Bermejo, Iris Alicia [0000-0001-8864-4852]   +15 more
core   +1 more source

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