Results 21 to 30 of about 169,947 (260)

Photographic assessment of overstory and understory leaf area index in beech forests under different management regimes in Central Italy

Metsanduslikud Uurimused, 2014
Forest understory may be strongly affected by silvicultural practices such as thinning, which simultaneously modulates the overstory canopy cover and influences the availability of light.
Chianucci Francesco, Puletti Nicola, Venturi Ernesto, Cutini Andrea, Chiavetta Ugo   +4 more
doaj   +1 more source

Retrieving Woody Components from Time-Series Gap-Fraction and Multispectral Satellite Observations over Deciduous Forests

Remote Sensing
Leaf area index (LAI) is essential for understanding vegetation dynamics, ecosystem processes, and land–atmosphere interactions. Various measurement methods exist, but gap-fraction-based indirect methods are preferred due to their reduced labor and field
Woohyeok Kim, Jaese Lee, Yoojin Kang, Jungho Im, Bokyung Son, Jiwon Lee   +5 more
doaj   +1 more source

Genetic variability studies in amaranthus (Amaranthus spp.)

Journal of Horticultural Sciences, 2021
An investigation was carried out to estimate the nature and extent of genetic variability​ ​among twenty Amaranthus genotypes (Amaranthus spp.) under a randomized block design during the year 2019-20.
Annapoorna Agadi, S Kolakar, D Lakshmana, S Nadukeri, M Hanumanthappa   +4 more
doaj   +1 more source

A plant nitrophily index based on plant leaf area response to soil nitrogen availability

Agronomy for Sustainable Development, 2013
This article reports a new experimental method to measure plant nitrophily. Knowledge of the nitrophily of plant species has many potential applications such as studying the long-term evolution of flora and designing nitrogen management strategies in cropping systems.
Moreau, Delphine, Milard, Guillaume, Munier-Jolain, Nicolas   +2 more
openaire   +2 more sources

How to implement the data collection of leaf area index by means of citizen science and forest gamification?

Silva Fennica
Leaf area index (LAI) is a critical parameter that influences many biophysical processes within forest ecosystems. Collecting in situ LAI measurements by forest canopy hemispherical photography is however costly and laborious.
Shaohui Zhang, Lauri Korhonen, Timo Nummenmaa, Simone Bianchi, Matti Maltamo   +4 more
doaj   +1 more source

Effects of Water Deficit Stress and Exogenous 24-Epibrassinolide Foliar Application on Morphological Traits, Yield Components, Grain Yield, and Water Use Efficiency in Pinto Beans (Phaseolus vulgaris L. cv. Pinto) [PDF]

بوم شناسی کشاورزی
IntroductionPinto bean (Phaseolus vulgaris L. cv. Pinto) is one of the most important legume crops within the Fabaceae family, cultivated extensively in tropical and subtropical regions.
Sulmaz Samfar, Hojatollah Latifmanesh, Ali Moradi, Amin Mirshekari, Hamid Alahdadi, Azar Razaghnasab   +5 more
doaj   +1 more source

Natural aspect of the megalithic cultural heritage area of the Bada Valley (Central Sulawesi): Vegetation composition and biodiversity analyses

Biosystems Diversity, 2023
The Bada Valley is one of the Lore Lindu Megalithic Cultural Heritage areas, which is one of the first four biosphere reserves in Indonesia. The Bada Valley area offers cultural attractions that combine with nature in the form of cultural landscapes such
S. Rahim, A. F. Ambo, D. W. K. Baderan, M. S. Hamidun, M. H. Angio, E. E. Ariyanti, S. Sunardi   +6 more
doaj   +1 more source

Exploring the use of thermal neutron counts to track orchard phenological development

Frontiers in Water
Regular monitoring of plant development and soil moisture variations is essential for managing orchard systems and optimizing irrigation. Cosmic Ray Neutron Sensors (CRNS) are increasingly used for reliable, non-invasive soil moisture estimation. However,
Samer K. Al-Mashharawi, Samer K. Al-Mashharawi, Susan C. Steele-Dunne, Marcel M. El Hajj, Oliver M. López Valencia, Omar A. López Camargo, Guillaume Pouget, Claude Doussan, Dominique Courault, Matthew F. McCabe   +9 more
doaj   +1 more source

RESPONSE OF WHEAT PLANT (Triticum aestivum L.) TO FOLIAR APPLICATION OF SITOSTEROL AND ETHREL. [PDF]

Journal of Plant Production, 2006
Two field experiments on wheat ( Triticum aestivum L.) c.v. Gemmiza-9 were conducted to study the effect of different concentrations of sitosterol (100, 150 and 200 mg/i ) , ethrel ( 0, 100 and 150 mg/I ) and their interaction on growth ...
A . Amin,
doaj   +1 more source

Tracking the long-term structure changes of a mature deciduous broadleaf forest stand using digital hemispherical photography

Metsanduslikud Uurimused, 2019
Hemispherical photography provides permanent records of forest canopy structure. We analysed digital hemispherical images taken during the period of 2007–2018 in a mature silver birch stand located in Järvselja, Estonia.
Lang Mait, Pisek Jan
doaj   +1 more source