نتایج جستجو برای: plant closure
تعداد نتایج: 446882 فیلتر نتایج به سال:
Angiosperms are able to respond rapidly to the first sign of dry conditions, a decrease in air humidity, more accurately described as an increase in the vapor pressure deficit between the leaf and the atmosphere (VPD), by abscisic acid (ABA)-mediated stomatal closure. The genes underlying this response offer valuable candidates for targeted selection of crop varieties with improved drought tole...
background: closure of patent ductus arteriosus (pda), ventricular septal defect (vsd) and atrial septal defect (asd) can be done surgically or by device. this study was designed to compare the total cost of surgical or device closures of pda, asd or vsd for iranian patients. methods: this is a cross-sectional study, conducted from january 1, 2005 until january 1, 2006 in two large heart center...
in this paper we will generalize some of known results on the tight closure of an ideal to the tight closure of an ideal relative to a module .
In this paper we capitalize on our access to plant level data in examining the relative changes in emissions of three major pollutants | Biochemical Oxygen Demand (BOD), Total Suspended Solids (TSS), and Greenhouse Gas (GHG) | for Canadian pulp and paper mills covering the period from 2005 to 2013. Over this eight-year period emissions of these three pollutants decreased by 31.0%, 35.5% and 42....
Calibrated predictive relationships obtained from simple and multiple regression of thematic mapper or broad-band (BB) and 1.4 nm interval or narrow-band (NB) spectral data were evaluated for quantifying 11 rangeland components (including total vegetation, forb, grass, shrub, litter, and bare soil) and distinguishing among 6 long-term grazing treatments of sagebrush steppe. In general, all 4 da...
The present work aims to study the interactive effect of drought stress and high vapour pressure deficit (VPD) on leaf gas exchange, and especially on mesophyll conductance to CO(2) (g(m)), in two woody species of great agronomical importance in the Mediterranean basin: Vitis vinifera L. cv. Tempranillo and Olea europaea L. cv. Manzanilla. Plants were grown in specially designed outdoor chamber...
Equivalence relations are important in many branches of knowledge and especially in Classification theories and Cluster Analysis since they generate a partition on the universe of discourse and permit to classify their elements and make clusters. In many cases the relation we start with is not an equivalence relation but only a reflexive and symmetric one. A very important family of fuzzy relat...
The relationship between the water relations of six olive cultivars exposed to different soil temperatures (14 ± 0.1, 9.9 ± 0.1 and 5.8 ± 0.2°C) and their inherent frost resistance (as determined by two different methods) was investigated. Soil chilling was achieved by introducing pots of olive plants into water baths. The water relations of these plants were compared to those of plants kept un...
Much attention has been paid to nitric oxide (NO) research since its discovery as a physiological mediator of plant defence responses. In recent years, newer roles have been attributed to NO, ranging from root development to stomatal closure. The molecular mechanisms underlying NO action in plants are just begun to emerge. The currently available data illustrate that NO can directly influence t...
The key threat to reliability and prices is the exit of coal plants at short notice. The risk of such exits has been demonstrated most recently through the Hazelwood closure in VIC where five months’ notice is all that was available. None of the key modellers (including AEMO) predicted it. If anything, the risk of sudden exit is rising as the coal plant fleet is ageing, the economics of coal pl...
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