نتایج جستجو برای: and transpiration

تعداد نتایج: 16827727  

1999
K. S. Shivashankara C. K. Mathai

The relationship of leaf and fruit transpiration rates with the incidence of spongy tissue in mango cultivars Dashahari (free from spongy tissue) and Alphonso (susceptible to spongy tissue) was investigated. Leaf transpiration rates were similar in both the cultivars, however the fruit transpiration rates were significantly higher in cv. Dashahari. Artificially induced variations in fruit trans...

2002
Bryan R. Becker Brian A. Fricke

Transpiration is the process by which fresh fruits and vegetables lose moisture. This process includes the transport of moisture through the skin of the commodity, the evaporation of this moisture from the commodity surface and the convective mass transport of the moisture to the surroundings. This paper discusses the pertinent factors which affect transpiration and identifies mathematical mode...

2014
MARK DECKER ANDY J. PITMAN JASON EVANS

The feasibility of using vegetation greennessmetrics as a proxy for transpiration variability overAustralia is demonstrated. Several global evapotranspiration datasets, one of which provides transpiration data and is constructed independently of the vegetation greenness measurements, are compared to four satellite-based observations representative of the state of the vegetation over several reg...

2007
Hikaru Komatsu Ayumi Katayama Shigeki Hirose Atsushi Kume Naoko Higashi Shigeru Ogawa Kyoichi Otsuki

Many studies have reported tree growth reduction in forests with pedestrian trampling, implying a reduction of tree transpiration in such forests. We undertook observations of tree transpiration based on the heat-pulse method in a forest (Lithocarpus edulis) with pedestrian trampling. We prepared trampled and control plots in the forest. Tree transpiration in the trampled plot was reduced compa...

Laminar stagnation flow, axi-symmetrically yet obliquely impinging on a rotating circular cylinder, as well as its heat transfer is formulated as an exact solution of the Navier-Stokes equations. Rotational velocity of the cylinder is time-dependent while the surface transpiration is uniform and steady. The impinging stream is composed of a rotational axial flow superposed onto irrotational rad...

2017
Michael A. Forster

Transpiration is a significant component of the hydrologic cycle and its accurate quantification is critical for modelling, industry, and policy decisions. Sap flow sensors provide a low cost and practical method to measure transpiration. Various methods to measure sap flow are available and a popular family of methods is known as heat pulse velocity (HPV). Theory on thermal conductance and con...

2001
SALVADOR SÂNCHEZ-CARRILLO MIGUEL ÂLVAREZ-COBELAS MANUEL BENITEZ DAVID G. ANGELER

Estimates of transpiration are often needed for hydrological management in wetlands. A new and simple method, using a portable steady-state porometer, is presented for estimating transpiration in three aquatic emergent macrophytes (reed, cut-sedge, and cattail). The method was established on the basis of the relationships between transpiration, solar radiation, relative humidity and air tempera...

Journal: :international journal of environmental research 2009
m. murugan p.k. shetty r. ravi a. subbiah

since 1895 cardamom has been cultivated in the cardamom hills of western ghats, india, which form a part of global biodiversity hot spots. these tropical forests in the last couple of decades have been subjected for severe periodical shade lopping and selective felling for maximizing cardamom production. photosynthesis, transpiration, leaf temperature and leaf relative humidity was studied in r...

Journal: :Tree physiology 2008
Joseph D Bowden William L Bauerle

We investigated which parameters required by the MAESTRA model were most important in predicting leaf-area-based transpiration in 5-year-old trees of five deciduous hardwood species-yoshino cherry (Prunus x yedoensis Matsum.), red maple (Acer rubrum L. 'Autumn Flame'), trident maple (Acer buergeranum Miq.), Japanese flowering cherry (Prunus serrulata Lindl. 'Kwanzan') and London plane-tree (Pla...

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