Abstract
A needle-type water content sensor with a polyethersulfone (PES) polymer membrane was developed for the low-invasive, direct in-situ measurement of plant water content (PWC) in prior work. In this paper we demonstrate a measurement of plant water stress that represents the demand for water of the plant and greatly affects its sweetness. We inserted the sensor into a stalk of strawberry (Fragaria×ananassa) and soil. The variation in both the plant and the soil water content were successfully detected, which revealed the delay between variation in the plant water stress and soil water content after irrigation. Such delay could only be detected by the proposed sensor that could directly measure the variation of PWC in situ and continuously. The experiments also showed the variation in the signals as a function of detection sites and suggested that the detection sites of plant water stress need to be considered when the sensor is applied to irrigation culture.
| Original language | English |
|---|---|
| Pages (from-to) | 452-453 |
| Number of pages | 2 |
| Journal | IEEJ Transactions on Sensors and Micromachines |
| Volume | 130 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2010 |
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Keywords
- Irrigation agriculture
- Plant water content
- Polyethersulfone
- Water stress sensor
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Mechanical Engineering
Cite this
Detection of plant water content with needle-type in-situ water content sensor. / Katayanagi, Hitoshi; Miki, Norihisa.
In: IEEJ Transactions on Sensors and Micromachines, Vol. 130, No. 9, 2010, p. 452-453.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Detection of plant water content with needle-type in-situ water content sensor
AU - Katayanagi, Hitoshi
AU - Miki, Norihisa
PY - 2010
Y1 - 2010
N2 - A needle-type water content sensor with a polyethersulfone (PES) polymer membrane was developed for the low-invasive, direct in-situ measurement of plant water content (PWC) in prior work. In this paper we demonstrate a measurement of plant water stress that represents the demand for water of the plant and greatly affects its sweetness. We inserted the sensor into a stalk of strawberry (Fragaria×ananassa) and soil. The variation in both the plant and the soil water content were successfully detected, which revealed the delay between variation in the plant water stress and soil water content after irrigation. Such delay could only be detected by the proposed sensor that could directly measure the variation of PWC in situ and continuously. The experiments also showed the variation in the signals as a function of detection sites and suggested that the detection sites of plant water stress need to be considered when the sensor is applied to irrigation culture.
AB - A needle-type water content sensor with a polyethersulfone (PES) polymer membrane was developed for the low-invasive, direct in-situ measurement of plant water content (PWC) in prior work. In this paper we demonstrate a measurement of plant water stress that represents the demand for water of the plant and greatly affects its sweetness. We inserted the sensor into a stalk of strawberry (Fragaria×ananassa) and soil. The variation in both the plant and the soil water content were successfully detected, which revealed the delay between variation in the plant water stress and soil water content after irrigation. Such delay could only be detected by the proposed sensor that could directly measure the variation of PWC in situ and continuously. The experiments also showed the variation in the signals as a function of detection sites and suggested that the detection sites of plant water stress need to be considered when the sensor is applied to irrigation culture.
KW - Irrigation agriculture
KW - Plant water content
KW - Polyethersulfone
KW - Water stress sensor
UR - http://www.scopus.com/inward/record.url?scp=78049449886&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78049449886&partnerID=8YFLogxK
U2 - 10.1541/ieejsmas.130.452
DO - 10.1541/ieejsmas.130.452
M3 - Article
AN - SCOPUS:78049449886
VL - 130
SP - 452
EP - 453
JO - IEEJ Transactions on Sensors and Micromachines
JF - IEEJ Transactions on Sensors and Micromachines
SN - 1341-8939
IS - 9
ER -