Results 21 to 30 of about 11,712,985 (251)

Review of indirect optical measurements of leaf area index: Recent advances, challenges, and perspectives

Agricultural and Forest Meteorology, 2019
Leaf area index (LAI) is a key parameter of vegetation structure in the fields of agriculture, forestry, and ecology. Optical indirect methods based on the Beer-Lambert law are widely adopted in numerous fields given their high efficiency and feasibility
G. Yan, Ronghai Hu, Jinghui Luo, M. Weiss, Hailan Jiang, X. Mu, D. Xie, Wuming Zhang   +7 more
semanticscholar   +1 more source

Growth performance evaluation of leaf characteristics of Rhizophora racemosa grown in amended mangrove - garden soil

Journal of Applied Sciences and Environmental Management, 2018
The present study investigated the effect of soil type on leaf characteristics of the Rhizophora racemosa. Matured propagules were grown for 75days on mangrove and garden soil amended with Saw dust (SD), Rice husk (RH), NPK and RH+ SD+NPK combination ...
O.O. Oji, L.A. Akonye, F.B.G. Tanee
doaj   +1 more source

Variation in canopy structure, leaf area, light interception and light use efficiency among Eucalyptus clones

, 2020
Differences in growth rates between Eucalyptus clones depend on differences in the acquisition of resources, and the efficiency of using resources to produce carbohydrates and grow wood.
E. M. Mattos, D. Binkley, O. Campoe, C. Alvares, J. Stape   +4 more
semanticscholar   +1 more source

Estimating Changes in Leaf Area, Leaf Area Density, and Vertical Leaf Area Profile for Mango, Avocado, and Macadamia Tree Crowns Using Terrestrial Laser Scanning

Remote Sensing, 2018
Vegetation metrics, such as leaf area (LA), leaf area density (LAD), and vertical leaf area profile, are essential measures of tree-scale biophysical processes associated with photosynthetic capacity, and canopy geometry.
Dan Wu, Stuart Phinn, Kasper Johansen, Andrew Robson, Jasmine Muir, Christopher Searle   +5 more
doaj   +1 more source

Physiological and Structural Responses of Olive Leaves Related to Tolerance/Susceptibility to Verticillium dahliae

Plants, 2022
Verticillium wilt of olive (VWO), caused by the soil borne fungus Verticillium dahliae, is one of the most relevant diseases affecting this crop worldwide. One of the best VWO management strategies is the use of tolerant cultivars.
Martina Cardoni, José Luis Quero, Rafael Villar, Jesús Mercado-Blanco   +3 more
doaj   +1 more source

Ground-based measurements of leaf area index: a review of methods, instruments and current controversies.

Journal of Experimental Botany, 2003
N. Breda
semanticscholar   +3 more sources

Accelerating leaf area measurement using a volumetric approach

Plant Methods, 2022
Background Despite the advances in the techniques of indirect estimation of leaf area, the destructive measurement approaches have still remained as the reference and the most accurate methods.
Abbas Haghshenas, Yahya Emam
doaj   +1 more source

Leaf area  Index measurements for  Pinus brutia  Ten. Plantations in Northern Iraqi [PDF]

Mesopotamia Journal of Agriculture
The surface area of the leaves of trees that perform photosynthesis is expressed by the leaf area index (LAI) for pine trees with different densities, using direct methods by collecting field data in 2022 from (30) samples, and measurements were taken of
Maan Shekho, Mohammed Al-Allaf, Muzahim Younis   +2 more
doaj   +1 more source

Leaf Fresh Weight Versus Dry Weight: Which is Better for Describing the Scaling Relationship between Leaf Biomass and Leaf Area for Broad-Leaved Plants?

Forests, 2019
Leaf dry mass per unit area (LMA) is considered to represent the photosynthetic capacity, which actually implies a hypothesis that foliar water mass (leaf fresh weight minus leaf dry weight) is proportional to leaf dry weight during leaf growth. However,
Weiwei Huang, D. Ratkowsky, C. Hui, Ping Wang, Jialu Su, P. Shi   +5 more
semanticscholar   +1 more source

A Nondestructive Method for Estimation of Leaf Area in Quercus aegilops L. Tree [PDF]

Al-Qadisiyah Journal For Agriculture Sciences
Non-destructive techniques for leaf area estimation are much sought after by both forest managers and researchers in the fields of biology and forest ecology.
Halmat Sabr
doaj   +1 more source