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191 819 (0,244s) •

Result

Sap flow index as an indicator of plant water status

Sap flow index (SFI), measured by the heated probe method with thermocouples arranged symmetricaly around a continuously heated linear heater, can be used to characterize internal plant water balance. Over the range of low ...

GK - Lesnictví

  • 1999
    • •
  • Jx
Result

Differential translucence method as a supplement to sap flow measurement in Norway spruce with symptoms of top dieback

In cases where sap flow is measured in trees and cross-sectional sapwood the sap flow measurements. If the studied trees are felled the modified differential be compared with sap flow...

GK - Lesnictví

  • 2013
    • •
  • Jx
Result

Sap flow index as an indicator of water storage use

Symmetrical temperature difference also known as the sap flow index (SFI) forms the basis of the Heat Field Deformation sap flow measurement and is simultaneously collected whilst measuring the

EF - Botanika

  • 2015
    • •
  • Jx
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  • Link
Result

Measurement of sap flow dynamics through the tomato peduncle using a non-invasive sensor based on the heat field deformation method

of currently available sap flow sensors use needles, making them inappropriate for the direct measurement of sap flow through small plant parts such as a tomato peduncle. Therefore,a non-invasive sap<...

GK - Lesnictví

  • 2013
    • •
  • Jx
Result

Relationship between Sap Flow, meteorological and morphological parameters of young woody plants on sandy soils

under conditions of arid climate" in Ratíškovice, were recorded the sap flow measurements of young woody plants in relation to measured meteorogical parameters and calculated evapotranspiration of the site. Me...

GC - Pěstování rostlin, osevní postupy

  • 2010
    • •
  • Jx
Result

Occlusion of sap flow in elm after artificial inoculation with Ophiostoma novo-ulmi

) during entire experiment. First measurable symptoms of sap flow reduction appeared utilizing O. ulmi and,to our best knowledge, this is the first sap flow measurements on trees inoculated by O. ...

GK - Lesnictví

  • 2013
    • •
  • Jx
Result

Infrared images of heat fields around a linear heater in tree trunks: what can be learned about sap flow measurements?

This contribution aims at improving the understanding of sap flow measurements in trees. Infrared heat field images taken around heating needles in sap transporting needle in the lower focus. Increasing sap

BO - Biofyzika

  • 2006
    • •
  • Jx
Result

Evaluation of Water Fluxes in the Spruce Tree Soil-plant-atmosphere System Using Long-term Sap Flow Measurements

Evaluation of Water Fluxes in the Spruce Tree Soil-plant-atmosphere System Using Long-term Sap Flow Measurements; six specimens and 3 selected roots were evaluated......

DA - Hydrologie a limnologie

  • 2010
    • •
  • D
Result

Environmental factors influencing the relationship between stem CO2 efflux and sap flow

sap flow measurements were carried out by applying a sap flow method heat pulse velocity. Stem CO2 efflux was positively correlated with stem temperature; sap flow environmental factor i...

EH - Ekologie – společenstva

  • 2015
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  • Jx
    • •
  • Link
Result

Improvement of the trunk heat balance method including measurement of zero and reverse sap flows

and experimental measurements of temperature field for sap flow calculation based on xylem, calculation of sap flow (Fw) was done considering heat losses by sap flow and other losses exp...

GK - Lesnictví

  • 2012
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  • Jx
    • •
  • Link
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