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leafarea, etc ; corn; data collection; disease control; leaf blight; leaf spot; management systems; models; technology; Show all 9 Subjects
Abstract:
... It is important to develop accurate disease management systems to identify and segment corn disease lesions and estimate their severity under complex field conditions. Although deep learning techniques are becoming increasingly popular to identify singular diseases, access to robust models for identifying multiple diseases and segmenting lesion areas for severity estimation under field conditions ...
leafarea, etc ; Brassica napus; antioxidants; carotenoids; drought; epicatechin; field capacity; flowers; food chemistry; genotype; leaves; polyphenols; rapeseed; Show all 13 Subjects
Abstract:
... Genotype, growth stages, and moisture regimes affect polyphenols as beneficial compounds in rapeseed with edible and medicinal properties. The aims of this study were to assess the effects of tissue, genotype background and moisture on growth, pigment composition, phenolic acids, flavonoids, antioxidant, and antiglycation activities in rapeseed. Treatments included two moisture regimes (10% field ...
... Changes in morpho-physiological traits are important for biotic or abiotic stresses in sugarcane (Saccharum spp. interspecific hybrids). Ground measurements of such traits are labor-intensive and time-consuming. Therefore, predicting them using aerial imagery can be important for detecting stress and timely management. In this study, ground data and aerial imagery were collected from plant cane an ...
leafarea; leafarea index, etc ; Pinus massoniana; canopy; data collection; forestry; lidar; research; China; Show all 9 Subjects
Abstract:
... Voxel-based canopy profiling is commonly used to determine small-scale leaf area. Layer thickness and voxel size impact accuracy when using this method. Here, we determined the optimal combination of layer thickness and voxel size to estimate leaf area density accurately. Terrestrial LiDAR Stonex X300 was used to generate point cloud data for Masson pines (Pinus massoniana). The canopy layer was s ...
leafarea; leafarea index, etc ; environment; fruits; grapes; leaves; models; pesticides; plant protection; sprayers; trees; Show all 11 Subjects
Abstract:
... Authorities around the world have committed to limiting the use of chemical pesticides by reducing doses, among other strategies. Nevertheless, different dose expression models and decision support systems (DSSs) for dose adjustment coexist for high growing crops (3D crops). Among them, leaf wall area (LWA) and tree row volume (TRV) models have recently been proposed by the European and Mediterran ...
leafarea; leafarea index, etc ; agriculture; cameras; canopy; electronics; greenhouses; image analysis; plant health; tomatoes; Show all 10 Subjects
Abstract:
... This paper presents a financially viable and non-destructive rail-based video monitoring method that utilizes optical image segmentation to estimate the canopy leaf area index (LAI) of greenhouse tomato plants. The LAI is directly related to the time-dependent crop growth and indicates plant health and potential crop yields. A rail-guided mobile camera system was commissioned that records continuo ...
leafarea; leafarea index, etc ; carbon; climate change; eddy covariance; gross primary productivity; phenology; photosynthesis; temperature; Show all 9 Subjects
Abstract:
... Annual gross primary productivity (AGPP) of terrestrial ecosystems is the largest carbon flux component in ecosystems; however, it's unclear whether photosynthetic capacity or phenology dominates interannual variation of AGPP, and a better understanding of this could contribute to estimation of carbon sinks and their interactions with climate change. In this study, observed GPP data of 494 site-ye ...
leafarea; specific leafarea, etc ; Gymnospermae; Russia; data collection; ecology; forests; geographical distribution; lighting; people; plant growth; Show all 11 Subjects
Abstract:
... Specific leaf area (SLA; one‐sided leaf area per unit of dry mass) is a key trait indicating plant growth strategy and its responses to changing environments. Despite its high relevance for ecological research and recent efforts to mobilize the trait data, information on SLA in many plant lineages and biogeographic regions is still underrepresented. To assist in closing this gap, we translated and ...
leafarea; specific leafarea, etc ; global change; leaf dry matter content; plant communities; plant height; temperate forests; Spain; Show all 8 Subjects
Abstract:
... The efficient conservation of vulnerable ecosystems in the face of global change requires a complete understanding of how plant communities respond to various environmental factors. We aim to demonstrate that a combined use of different approaches, traits, and indices representing each of the taxonomic and functional characteristics of plant communities will give complementary information on the f ...
leafarea; leafarea index, etc ; cameras; canopy; prediction; regression analysis; soil; support vector machines; surface area; vegetation; wheat; Show all 11 Subjects
Abstract:
... BACKGROUND: Leaf Area Index (LAI) is half of the amount of leaf area per unit horizontal ground surface area. Consequently, accurate vegetation extraction in remote sensing imagery is critical for LAI estimation. However, most studies do not fully exploit the advantages of Unmanned Aerial Vehicle (UAV) imagery with high spatial resolution, such as not removing the background (soil and shadow, etc. ...
leafarea; specific leafarea, etc ; functional diversity; global change; grasslands; land use; leaves; nitrogen; primary productivity; soil; China; Show all 11 Subjects
Abstract:
... The biotic drivers for the temporal stability of aboveground net productivity (ANPP) in natural ecosystems are well understood. However, knowledge gaps still exist regarding the relative importance of biotic and abiotic drivers regulating the temporal stability of aboveground productivity (ANPP), belowground net productivity (BNPP), and community net productivity (NPP) under global change and land ...
... The amount of PM bound by tree canopies depends on leaf traits, but also the leaf area available, both of which are dependent on tree identity. We investigated four species (Acer platanoides L., Tilia cordata Mill., Quercus robur L., Carpinus betulus L.) grown in monocultures and in two and four species polycultures. The amount of PM on the leaves of these species was determined by washing and fra ...
Andrea McIntosh-Buday; Judit Sonkoly; Attila Takács; Nóra Balogh; Gergely Kovacsics-Vári; Balázs Teleki; Kristóf Süveges; Katalin Tóth; Alida Anna Hábenczyus; Balázs A. Lukács; Ádám Lovas-Kiss; Viktor Löki; Alexandra Tomasovszky; Béla Tóthmérész; Péter Török; Edina Tóth
leafarea; specific leafarea, etc ; flora; labor; leaf dry matter content; leaves; loess; sand; species diversity; Central European region; Show all 10 Subjects
Abstract:
... Trait-based ecology is gaining ground nowadays on species-based ecology: the number of research and publication focusing on the ecological role of taxa instead of the species themselves increased significantly in the last two decades. One great advantage of this approach is that communities with different species composition due to great geographical distances (e.g., different continents) or diffe ...
leafarea; specific leafarea, etc ; chlorophyll; forest restoration; forests; habitat conservation; intraspecific variation; leaves; plant adaptation; seedlings; topsoil; trees; Show all 12 Subjects
Abstract:
... Seedling performance in the early stage is crucial to natural forest restoration, and functional traits have been widely employed in exploring plant adaptation under field conditions. However, the responses and variabilities of leaf traits have not been clearly defined at the light gradients that are used in restoration practices. We evaluated the variation in leaf treats in species and community ...
László Erdős; Ákos Bede-Fazekas; Zoltán Bátori; Christian Berg; György Kröel-Dulay; Martin Magnes; Philipp Sengl; Csaba Tölgyesi; Péter Török; Jack Zinnen
leafarea; specific leafarea, etc ; dry matter content; habitat destruction; humans; indigenous species; introduced species; simple leaves; vegetation; Europe; Show all 10 Subjects
Abstract:
... Naturalness and hemeroby indicator values are specialized species-based indicators used in Continental Europe that reflect plant species’ affinity to degraded habitats. Despite their potential utility for basic and applied science, their similarities have gone unnoticed, and they have yet to be studied together. Here, we combine literature review and novel data analyses to ask 1) How are the natur ...
... The high seed yield and optimum harvesting of short‐height castor (Ricinus communis L.) genotypes have enabled its large‐scale cultivation and introduction in the Brazilian cropping systems. Thus, studies to optimize plant density are essential to adequate plant population since this is the key management to influence castor biomass and seed production. This study aimed to evaluate the influence o ...
leafarea; specific leafarea, etc ; Ginkgo biloba; Pinus strobus; adsorption; carboxylation; human health; humans; particulates; photosynthesis; transportation; trees; urban forestry; Show all 13 Subjects
Abstract:
... Fine particulate matter (PM₂.₅) is emerging as a serious environmental problem worldwide with the increase in anthropogenic emission sources, such as fossil fuels, transportation, and industries. In urban areas, where industrial complexes and human activities are concentrated, PM₂.₅ poses a threat to human health. Recently, because of their ability to reduce PM₂.₅, the introduction of landscaping ...
leafarea; specific leafarea, etc ; chlorophyll; covariance; edge effects; global change; lakes; leaf dry matter content; leaves; microclimate; tropical forests; Show all 11 Subjects
Abstract:
... Altered microclimatic conditions and higher disturbance at forest edges create environmental stress and modify resource gradients from edge to interior, changing the selection pressures acting on individuals. Although community‐weighted trait‐mean (CWM) shifts along edge gradients have been widely documented at the species level, it is unclear how edge effects act at the individual level, and whet ...
... The present study was carried out in the Department of Oilseeds, during rabi, 2021 at Tamil Nadu Agricultural University, Coimbatore to study the genetic variability, correlation and path analysis using thirty promising genotypes of groundnut. Kernel yield and its component characters were recorded. The magnitude of PCV and GCV values were higher for the characters viz., number of branches, total ...
leafarea; leafarea index, etc ; chlorophyll; crop management; paddies; radiation use efficiency; research; rice; solar radiation; surveys; time series analysis; Show all 11 Subjects
Abstract:
... Rice yield is an important factor for farmers when reviewing crop management planning and cultivation operations. In previous studies, a non-destructive, labor-saving method has been proposed to determine yield using spectral information from remote sensing. This method assumes that molecule number (e.g., chlorophyll content in leaves) and biophysical information (e.g., leaf area) cause spectral v ...