Results 121 to 130 of about 6,521,027 (300)

The Influence of Age, Position, and Environmental Variables on Net Photosynthetic Rate of Sour Cherry Leaves1

open access: yesJournal of the American Society for Horticultural Science, 1982
Abstract Net photosynthetic rate (Pn) of leaves of sour cherry ( Prunus cerasus L. cv. Montmorency) was greater for leaves between nodes 9 and 13 than for either older, mature leaves or newly expanding leaves on the same shoot.
C. E. Sams, J. A. Flore
openaire   +1 more source

Data‐Guided Photocatalysis: Supervised Machine Learning in Water Splitting and CO2 Conversion

open access: yesAdvanced Intelligent Discovery, EarlyView.
This review highlights recent advances in supervised machine learning (ML) for photocatalysis, emphasizing methods to optimize photocatalyst properties and design materials for solar‐driven water splitting and CO2 reduction. Key applications, challenges, and future directions are discussed, offering a practical framework for integrating ML into the ...
Paul Rossener Regonia   +1 more
wiley   +1 more source

New EU carbon tax: wrong rate could wreck net-zero goals – but right rate can help world’s poor [PDF]

open access: yes, 2021
First paragraph: The European Commission is holding a meeting in June that is, on the face of it, very boring. The EU’s senior bureaucrats will be considering at what level to set a tax on carbon emissions for goods imported into the bloc.https ...
Comerford, David
core  

AI‐Enabled RGB Light‐to‐Frequency Sensor for Nondestructive Salinity Stress Monitoring in Medicinal Plants

open access: yesAdvanced Intelligent Systems, EarlyView.
A distributed wireless sensing framework enables noninvasive monitoring of plant salinity stress through leaf reflectance measurements acquired with portable optical sensors. The collected data are processed using TinyML‐based neural network models deployed at the edge, enabling accurate, real‐time, and low‐cost classification of salinity levels, while
Ali Ahmad   +4 more
wiley   +1 more source

Physiological characteristics, dry matter, and active component accumulation patterns of Changium smyrnioides in response to a light intensity gradient

open access: yesPharmaceutical Biology, 2017
Context: Changium smyrnioides Wolff (Apiaceae) is an endangered medicinal plant with numerous pharmacological uses. Objective: To investigate the effect of light intensity levels on the growth and accumulation of secondary metabolites of C.
Chang-lin Wang   +3 more
doaj   +1 more source

Differences in light response characteristics of oil peonies from eight provenances in China

open access: yesPhotosynthetica, 2019
Two tree peony species, Paeonia ostii and Paeonia rockii, from eight different provenances in China (four provenances for each species) were collected for their photosynthetic characteristics.
S.Y. WEI   +2 more
doaj   +1 more source

Expected net present value, expected net future value, and the Ramsey rule [PDF]

open access: yes, 2009
Weitzman (1998) showed that when future interest rates are uncertain, using the expected net present value implies a term structure of discount rates that is decreasing to the smallest possible interest rate.
GOLLIER, Christian
core   +1 more source

The causal effect of agricultural landscape simplification on Germany's grasslands during a compound drought and heatwave in 2018

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Preserving ecosystem services, along with economic and environmental benefits, will require future landscape policies to identify and incorporate relevant landscape features. In this paper, we investigate the causal effect of agricultural landscape simplification on drought‐related grassland damages.
Marco Ferro   +5 more
wiley   +1 more source

Success of coastal sage scrub restoration is influenced by local adaptations of shrub species

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Restoring plant communities is increasingly challenging with climate change. While practitioners have traditionally used local seed sources, many are recommending assisted migration, possibly from more extreme environments such as inland rather than coastal environments, for restoration.
Moises R. Perea‐Vega   +7 more
wiley   +1 more source

A well‐resolved phylogeny of Cuscuta subgenus Monogynella based on data drawn from all three plant genomes

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Cuscuta (dodders) consists of ~200 species circumscribed into four subgenera (Monogynella, Cuscuta, Pachystigma, and Grammica) and is the only parasitic genus in Convolvulaceae (the morning‐glory family). This group shows a significant diversity in plastid functionality and represents a rare mixotrophic system among parasitic plants ...
Asawari Albal, Saša Stefanović
wiley   +1 more source

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