Results 41 to 50 of about 11,712,985 (251)

Joint Estimation of Leaf Area Density and Leaf Angle Distribution Using TLS Point Cloud for Forest Stands

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
The foliage density $(u_l)$ and the leaf angle distribution (LAD) are important properties that impact radiation transmission, interception, absorption and, therefore, photosynthesis.
Ameni Mkaouar   +3 more
doaj   +1 more source

تأثیر سطوح شوری آب آبیاری با NaCl بر فیلوکرون و سرعت ظهور برگ ارقام جو [PDF]

open access: yesتنش های محیطی در علوم زراعی, 2016
شوری منابع آب‌وخاک از مهم‌ترین مشکلات کشاورزی در مناطق خشک و نیمه‌خشک ایران است. برای بررسی تأثیر شوری آب آبیاری بر فیلوکرون و سرعت ظهور برگ ارقام جو، آزمایشی به‌صورت فاکتوریل در قالب طرح پایه بلوک‌های کامل تصادفی با سه تکرار در گلخانه دانشکده کشاورزی ...
رئوف سیدشریفی   +1 more
doaj   +1 more source

Multi-Spectral Imaging from an Unmanned Aerial Vehicle Enables the Assessment of Seasonal Leaf Area Dynamics of Sorghum Breeding Lines

open access: yesFrontiers in Plant Science, 2017
Genetic improvement in sorghum breeding programs requires the assessment of adaptation traits in small-plot breeding trials across multiple environments. Many of these phenotypic assessments are made by manual measurement or visual scoring, both of which
A. Potgieter   +9 more
semanticscholar   +1 more source

Assessment of morphological attributes of Guava tree for design of a novel tunnel spraying system

open access: yesEnvironment Conservation Journal
The morphological attributes play a significant role in determining the level of applied insecticide by the existing spraying system. Therefore, this attempt was made to assess the various morphological attributes of guava tree such as leaf size, leaf ...
Jagjeet Singh   +5 more
doaj   +1 more source

Estimating Leaf Area Index with Dynamic Leaf Optical Properties

open access: yesRemote Sensing, 2021
Leaf area index (LAI) plays an important role in models of climate, hydrology, and ecosystem productivity. The physical model-based inversion method is a practical approach for large-scale LAI inversion.
Hu Zhang   +8 more
doaj   +1 more source

Regional‐Scale Relationships of Leaf Area Index to Specific Leaf Area and Leaf Nitrogen Content

open access: yesEcological Applications, 1994
Specific leaf area (SLA) is an important link between vegetation water and carbon cycles because it describes the allocation of leaf biomass per unit of leaf area. Several studies in many vegetation types have shown that canopy SLA is closely related to canopy leaf nitrogen (N) content and photosynthetic capacity.
Lars L. Pierce   +2 more
openaire   +2 more sources

A General Leaf Area Geometric Formula Exists for Plants—Evidence from the Simplified Gielis Equation

open access: yesForests, 2018
Plant leaves exhibit diverse shapes that enable them to utilize a light resource maximally. If there were a general parametric model that could be used to calculate leaf area for different leaf shapes, it would help to elucidate the adaptive evolutional ...
P. Shi   +5 more
semanticscholar   +1 more source

Canopy Architecture and Sun Exposure Influence Berry Cluster–Water Relations in the Grapevine Variety Muscat of Alexandria

open access: yesPlants
Climate-change-related increases in the frequency and intensity of heatwaves affect viticulture, leading to losses in yield and grape quality. We assessed whether canopy-architecture manipulation mitigates the effects of summer stress in a Mediterranean ...
Olfa Zarrouk   +8 more
doaj   +1 more source

Allometric models for estimating the leaf area of lisianthus (Eustoma grandiflorum) using a non-destructive method

open access: yesRevista Ceres, 2022
Lisianthus (Eustoma grandiflorum) is a cut flower grown due to the wide diversity of colors and longevity in the post-harvest. The leaf area measurement is fundamental in plants because the leaves are directly related to several processes such as ...
Marlon Gomes Dias   +4 more
doaj   +1 more source

Spatial and temporal variations in leaf area index, specific leaf area and leaf nitrogen of two co-occurring savanna tree species [PDF]

open access: yesTree Physiology, 2004
Foliage growth, mass- and area-based leaf nitrogen concentrations (Nm and N a) and specific leaf area (SLA) were surveyed during a complete vegetation cycle for two co-occurring savanna tree species: Crossopteryx febrifuga (Afzel. ex G. Don) Benth. and Cussonia arborea A. Rich.
Simioni, Guillaume   +4 more
openaire   +5 more sources

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