Results 21 to 30 of about 209,563 (307)

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

open access: yesMesopotamia 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   +2 more
doaj   +1 more source

Accelerating leaf area measurement using a volumetric approach

open access: yesPlant 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

Regional‐Scale Relationships of Leaf Area Index to Specific Leaf Area and Leaf Nitrogen Content

open access: yesEcological Applications, 1994
Specific leaf area (SLA) is an important link between vegetation water and carbon cycles because it describes the allocation of leaf biomass per unit of leaf area. Several studies in many vegetation types have shown that canopy SLA is closely related to canopy leaf nitrogen (N) content and photosynthetic capacity.
Lars L. Pierce   +2 more
openaire   +2 more sources

Sapwood area – leaf area relationships for coast redwood [PDF]

open access: yesCanadian Journal of Forest Research, 2005
Coast redwood (Sequoia sempervirens (D. Don) Endl.) trees in different canopy strata and crown positions were sampled to develop relationships between sapwood cross-sectional area and projected leaf area. Sampling occurred during the summers of 2000 and 2001 and covered tree heights ranging from 7.7 to 45.2 m and diameters at breast height ranging ...
Stancioiu, P T, O'Hara, K L
openaire   +2 more sources

Effects of shading and soil compaction on the growth, leaf area and biomass allocation of tomatoes (Lycopersicon esculentum)

open access: yesDavao Research Journal, 2020
Plants are often exposed to stressors such as shading and soil compaction, influencing their morphology and physiology. This study aimed to determine the effects of shading (e.g.
Rancil Quin Salang, Edison Macusi
doaj   +1 more source

Effect of shade on the leaflet morphology of wild Pistachio sapling under drought stress [PDF]

open access: yesمجله جنگل ایران, 2019
In this research, the effects of drought stress and shade on leaflet morphology of wild pistachio (Pistacia atlantica subsp. Mutica) saplings were evaluated in Albroz Research center (Karaj, Iran) in the summer of 2014.
Mohammad Hosein Sadeghzadeh Hallaj   +2 more
doaj  

Effect of multi-nutrient complex fertilizers on growth and tuber yield of very early potato (Solanum tuberosum L.) cultivars

open access: yesActa Agrobotanica, 2013
The aim of the study was to compare the effect of multi-nutrient complex fertilizers (HydroComplex, Nitrophoska Blue Special and Viking 13 from the nitrophoska group, and Polimag S from the amophoska group) and single-nutrient fertilizers on the growth ...
Wanda Wadas, Tomasz Dziugieł
doaj   +1 more source

Effect of collection time and auxin treatments on the rooting and seedling production of hardwood cuttings of mahaleb cherry (Cerasus mahaleb L.) [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2017
Mahaleb cherry (Cerasus mahaleb L.) is endangered duetoitslimitedecological distribution, weak natural regeneration and seedling propagation problems. In order to determine suitable methods for rooting and seedling production of C.
Gholam Reza Goodarzi   +3 more
doaj   +1 more source

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

open access: yesAl-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

Variability in leaf and crown morphology correlated with light availability in five natural populations of Quercus castaneifolia C.A. Mey

open access: yesJournal of Forest Science, 2017
In this study, we investigate seedlings of Quercus castaneifolia C.A. Mey, from five different provenances for the research on leaf and crown morphological variations in relation to a light gradient under controlled conditions in a greenhouse.
Fariba BABAEI   +3 more
doaj   +1 more source

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