scholarly journals Sap flow measurements by thermal dissipation method using cyclic heating: a processing method accounting for the non-stationary regime

2011 ◽  
Vol 68 (7) ◽  
pp. 1255-1264 ◽  
Author(s):  
Marie Nourtier ◽  
André Chanzy ◽  
André Granier ◽  
Roland Huc
Keyword(s):  
Sap Flow ◽  
Stationary Regime ◽  
Processing Method ◽  
Thermal Dissipation ◽  
Cyclic Heating ◽  
Flow Measurements ◽  
Sap Flow Measurements

Towards reduced heating duration in the transient thermal dissipation system of sap flow measurements

2018 ◽  
pp. 149-154 ◽  
Author(s):  
F.C. Do ◽  
N. Puangjumpa ◽  
A. Rocheteau ◽  
M. Duthoit ◽  
S. Nhean ◽  
...  
Keyword(s):  
Sap Flow ◽  
Thermal Dissipation ◽  
Flow Measurements ◽  
Sap Flow Measurements ◽  
Transient Thermal ◽  
Dissipation System ◽  
Heating Duration

Determination of zero-flow for the thermal dissipation method of sap flow measurements in Mediterranean climates

2020 ◽  
pp. 29-36
Author(s):  
S. Haberstroh ◽  
M.C. Caldeira ◽  
R. Lobo-do-Vale ◽  
M. Dubbert ◽  
C. Werner
Keyword(s):  
Sap Flow ◽  
Thermal Dissipation ◽  
Flow Measurements ◽  
Sap Flow Measurements ◽  
Zero Flow

scholarly journals Sap flow in ‘Tommy Atkins’ mango trees under regulated deficit irrigation

2019 ◽  
Vol 14 (3) ◽  
pp. 1
Author(s):  
Carlos Elizio Cotrim ◽  
Marcelo Rocha dos Santos ◽  
Maurício Antônio Coelho Filho ◽  
Eugênio Ferreira Coelho ◽  
João Abel da Silva
Keyword(s):  
Sap Flow ◽  
Deficit Irrigation ◽  
Irrigation Management ◽  
Thermal Dissipation ◽  
Phase Iii ◽  
Regulated Deficit Irrigation ◽  
Flow Measurements ◽  
Mango Tree ◽  
Irrigated Perimeter ◽  
Sap Flow Measurements

Knowledge of transpiration is of fundamental importance for improving irrigation management. This study measured sap flow of the 'Tommy Atkins' mango tree using Granier’s thermal dissipation probe method under regulated deficit irrigation. The work was conducted in a 10-year-old ‘Tommy Atkins’ mango orchard, irrigated by micro sprinkler, located in the Irrigated Perimeter of Ceraíma, in Guanambi, Bahia, Brazil. Sap flow measurements were carried out on three consecutive days in plants under regulated deficit irrigation, with reductions of 30 and 60% of crop evapotranspiration in three phases of fruit development; beginning of flowering to early fruit growth (Phase I), fruit expansion (Phase II) and physiological maturation of fruits (Phase III). Regulated deficit irrigation led to reduced sap flow in ‘Tommy Atkins’ mango tree.

scholarly journals Assessing water requirement of orange trees using sap flow measurements in Narkhed-Pandhurna critical zone observatory (CZO) in central India

2021 ◽  
Vol 23 (1) ◽  
pp. 14-20
Author(s):  
ASHUTOSH KUMAR MISHRA ◽  
PARAS R. PUJARI ◽  
SHALINI DHYANI ◽  
PARIKSHIT VERMA ◽  
RAMESH JANIPELLA ◽  
...  
Keyword(s):  
Water Uptake ◽  
Sap Flow ◽  
Short Interval ◽  
Central India ◽  
Water Requirement ◽  
Thermal Dissipation ◽  
Sap Flux ◽  
Flow Measurements ◽  
Sap Flow Measurements ◽  
Orange Trees

We used thermal dissipation method for sap flux measurements in orange trees to assess its water requirement in Narkhed-Pandhurna region. Thermal Dissipation Probe (TDP) sensors were installed in 5-year old (young) and 15-year old (mature) orange trees to measure the diurnal sap flux variations in trees during November 21, 2019, to January 31, 2020 (71 days). The results show that the maximum daily water uptake by the 5-year old tree was 1.1 L observed on 39th day of measurement (December 29, 2019) and in the 15-year old tree it was 5.0 L, and it observed on 38th day (December 28, 2019) of measurement. The cumulative water uptake during the study period by the 5-year old tree was 49.0 L, and the 15-year old tree consumed 257.4 L of water. The results were compared with the recommended irrigational values of Indian Horticulture Board (IHB), Government of India (GoI) and Groundwater Survey and Development Agency (GSDA), Government of Maharashtra (GoMH) for orange orchards. The initial investigation shows that recommended guidelines for irrigation of orange trees are exorbitantly high and needs to be revised. The sap flow methods are more precise that can measure sap flow at a very short interval and can generate a time series of data. It can be used to revise the guidelines with the aim to conserve water and propose precision water irrigation for the study area in particular and different agro-climatic zones of the country in general.

Can heat-pulse sap flow measurements be used as continuous water stress indicators of citrus trees?

2012 ◽  
Vol 31 (5) ◽  
pp. 1053-1063 ◽  
Author(s):  
C. Ballester ◽  
J. Castel ◽  
L. Testi ◽  
D. S. Intrigliolo ◽  
J. R. Castel
Keyword(s):  
Water Stress ◽  
Sap Flow ◽  
Heat Pulse ◽  
Flow Measurements ◽  
Stress Indicators ◽  
Sap Flow Measurements ◽  
Citrus Trees

Sap Flow Measurements

2017 ◽  
pp. 99-112 ◽  
Author(s):  
Barbara Köstner ◽  
Eva Falge ◽  
Martina Alsheimer
Keyword(s):  
Sap Flow ◽  
Flow Measurements ◽  
Sap Flow Measurements
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