Results 31 to 40 of about 90,034 (280)

Testing the Suitability of a Terrestrial 2D LiDAR Scanner for Canopy Characterization of Greenhouse Tomato Crops

open access: yesSensors, 2016
Canopy characterization is essential for pesticide dosage adjustment according to vegetation volume and density. It is especially important for fresh exportable vegetables like greenhouse tomatoes. These plants are thin and tall and are planted in pairs,
Jordi Llop   +4 more
doaj   +1 more source

The effect of elevational gradient on alpine gingers (Roscoea alpina and R. purpurea) in the Himalayas [PDF]

open access: yesPeerJ, 2019
There is currently enormous interest in how morphological and physiological responses of herbaceous plants may be affected by changing elevational gradient.
Babu Ram Paudel   +3 more
doaj   +2 more sources

High Leaf Vein Density Promotes Leaf Gas Exchange by Enhancing Leaf Hydraulic Conductance in Oryza sativa L. Plants

open access: yesFrontiers in Plant Science, 2021
Six cultivated rice genotypes showing different stomatal conductance (gs) values were used to investigate the influence of leaf vein traits on leaf gas exchange and leaf hydraulics.
Miao Ye   +5 more
doaj   +1 more source

A Simulation Study Using Terrestrial LiDAR Point Cloud Data to Quantify Spectral Variability of a Broad-Leaved Forest Canopy

open access: yesSensors, 2018
In this analysis, a method for construction of forest canopy three-dimensional (3D) models from terrestrial LiDAR was used for assessing the influence of structural changes on reflectance for an even-aged forest in Belgium.
Renato Cifuentes   +4 more
doaj   +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

Radiation balance components of maize hybrids grown at various plant densities.

open access: yes, 2005
Components of the energy and heat balances were examined in two maize hybrids grown at three different plant densities (40, 70 and 100 thousand plants per hectare).
Lőke, Zsuzsanna   +3 more
core   +1 more source

Differing Trade-Off Patterns of Tree Vegetative Organs in a Tropical Cloud Forest

open access: yesFrontiers in Plant Science, 2021
Functional trait ecology demonstrates the significance of the leaf economics spectrum in understanding plants’ trade-off between acquisitive and conservative resource utilization.
Yuanyuan Yang   +12 more
doaj   +1 more source

The Effect of Nitrogen and Plant Density on Some Growth Characteristics, Yield and Essential Oil in Peppermint (Mentha piperita L.)

open access: yesپژوهشهای زراعی ایران, 2011
In order to study the effect of different amounts of nitrogen and plant density on growth, yield, the percentage of essential oil in leaf and essential oil yield of peppermint (Mentha piperita L.), an experiment was conducted in 2008 at the Experimental ...
z Izadi   +3 more
doaj   +1 more source

Importance of crown architecture for leaf area index of different Populus genotypes in a high-density plantation [PDF]

open access: yesTree Physiology, 2012
Crown architecture is an important determinant of biomass production and yield of any bio-energy plantation since it determines leaf area display and hence light interception. Four Populus genotypes-of different species and hybrids and with contrasting productivity and leaf area-were examined in terms of their branch characteristics in relation to ...
L. S. Broeckx   +3 more
openaire   +3 more sources

Leaf morphoanatomy traits in white grapevine cultivars with distinct geographical origin [PDF]

open access: yesCiência e Técnica Vitivinícola, 2018
This study aims to compare the leaf morphoanatomical characteristics of seven Vitis vinifera subsp. vinifera white cultivars with different geographical origin, grown side by side at the same “terroir”.
Teixeira Generosa   +3 more
doaj   +1 more source

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