Results 31 to 40 of about 863,467 (282)

Predicting red cypress vine leaf area by a linear equation [PDF]

open access: yesCommunications in Plant Sciences, 2016
We aimed to determine a linear equation to predict the leaf area of Ipomoea quamoclit L. (red cypress vine), an important weed infesting perennial crops in Brazil and worldwide, as a function of leaf blade length and width.
Elise Antero Alves   +1 more
doaj  

Vein‐to‐blade ratio is an allometric indicator of leaf size and plasticity [PDF]

open access: yesAmerican Journal of Botany, 2021
PremiseAs a leaf expands, its shape dynamically changes. Previously, we documented an allometric relationship between vein and blade area in grapevine leaves. Larger leaves have a smaller ratio of primary and secondary vein area relative to blade area compared to smaller leaves.
Daniel H. Chitwood   +5 more
openaire   +2 more sources

Effect of osmotic stress on growth and osmolytes accumulation in sugar beet (Beta vulgaris L.) plants

open access: yesPlant, Soil and Environment, 2016
To investigate the effects of osmotic stress on plant growth, and ions and compatible solutes accumulations of sugar beet (Beta vulgaris L.), in the present study, two-month-old plants were subjected to different degrees of osmotic stress (-0.5, -1.0 ...
G.-Q. Wu, R.-J. Feng, Q.-Z. Shui
doaj   +1 more source

The Diverse Roles of Auxin in Regulating Leaf Development

open access: yesPlants, 2019
Leaves, the primary plant organs that function in photosynthesis and respiration, have highly organized, flat structures that vary within and among species.
Yuanyuan Xiong, Yuling Jiao
doaj   +1 more source

Influence of blade aerodynamic model on the prediction of helicopter high-frequency airloads [PDF]

open access: yes, 2011
Brown’s vorticity transport model has been used to investigate the influence of the blade aerodynamic model on the accuracy with which the high-frequency airloads associated with helicopter blade–vortex interactions can be predicted.
Kelly, Mary E.   +3 more
core   +4 more sources

Leaf blade area estimate of Digitaria pentzii under different cutting heights

open access: yesCiência Animal Brasileira, 2020
Pasture studies require information on leaf area, as it is one of the main parameters for evaluation of plant growth. Thus, the objective of this study was to estimate the leaf blade area of pangolão grass (Digitaria pentzii Stent.) using non-destructive
Raul Caco Alves Bezerra   +5 more
doaj  

Pharmacobotanical study of Manilkara zapota (L.) P.Royen (Sapotaceae)

open access: yesBrazilian Journal of Pharmaceutical Sciences, 2019
Manilkara zapota (L.) P. Royen, popularly known as sapoti or sapota (sapodilla), is a tree bearing an important fruit, in addition to different parts of the plant being widely used in folk medicine in the management of inflammation, pain, fevers, coughs,
Bruna Izabela de Vasconcelos Moura   +3 more
doaj   +1 more source

Genome-wide analysis of spatiotemporal expression patterns during rice leaf development

open access: yesBMC Genomics, 2021
Background Rice leaves consist of three distinct regions along a proximal-distal axis, namely the leaf blade, sheath, and blade-sheath boundary region. Each region has a unique morphology and function, but the genetic programs underlying the development ...
Masayuki Miya   +3 more
doaj   +1 more source

Diagrammatic representation of the basal angle (the angle between the base of a leaf and the upper stem of the leaf), opening angle (the angle between the tip of the leaf blade and the stem) and cambering angle (the angle between the tip of the leaf blade and the upper stem of the leaf position).

open access: yes, 2014
Diagrammatic representation of the basal angle (the angle between the base of a leaf and the upper stem of the leaf), opening angle (the angle between the tip of the leaf blade and the stem) and cambering angle (the angle between the tip of the leaf ...
Bao-Luo Ma (624536)   +12 more
core   +1 more source

Anatomical and histochemical characterization of the vegetative organs of Talinum fruticosum (L.) Juss.

open access: yesDiversitas Journal, 2023
Talinum fruticosum (L.) Juss. is popularly known as beldroega and bredo, its leaves are highly nutritious consumed as a substitute for spinach, presenting considerable concentrations of pro-vitamin A, calcium and iron.
Marina Maria Barbosa de Oliveira   +2 more
doaj   +1 more source

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