TY - JOUR
T1 - Aeroponic systems: A unique tool for estimating plant water relations and NO3 uptake in response to salinity stress
T2 - A unique tool for estimating plant water relations and NO3 uptake in response to salinity stress
AU - Tafesse, Endale
AU - Aidoo, Moses
AU - Lazarovitch, Naftali
AU - Rachmilevitch, Shimon
N1 - Funding Information:
The authors thank Gabi Rubanenko for his generous donation towards the establishment of the system. This research was partially supported by the Israeli Ministry of Agriculture and Rural Development (Eugene Kandel Knowledge Centers) as part of the program The Root of the Matter: The root zone knowledge center for leveraging modern agriculture.
Publisher Copyright:
© 2021 The Authors. Plant Direct published by American Society of Plant Biologists and the Society for Experimental Biology and John Wiley & Sons Ltd.
PY - 2021/3/29
Y1 - 2021/3/29
N2 - Aeroponic systems: A unique tool for estimating plant water relations and NO3 uptake in response to salinity stress. The study of transpiration, water, and nutrient uptake during abiotic stress in the root zone is hindered because of the hidden nature of the root zone. In this study, a modified aeroponic system was used to evaluate whole plant transpiration, nitrate and water uptake in the growth and development of tomato plants in response to salinity. Tomato seedlings were exposed to three levels of salinity (1.5, 4.5, and 9 dSm−1) and three levels of nitrate (1, 4, and 8 mM NO3) in a separate experiments conducted concurrently. Whole plant transpiration, water and nitrate uptake were estimated. Our study revealed that ~30 to 35 days after treatment (DAT), water uptake rate per plant increased from a common initial rate of about 0.05 to 1.1, 0.6, and 0.4 kg/day at 1.5, 4.5, and 9 dSm−1 respectively. The NO3 uptake rates in tomatoes grown in 1 and 4 mM NO3 were 5.5 and 22% respectively, of the uptake of tomatoes grown in 8 mM NO3. The estimation of nitrate uptake and lower sensitivity to salinity stress in the aeroponic showed the effectiveness and cost efficiency of the system in the cultivation of vegetables during abiotic stresses. The novelty of the system described is the continuous estimation of root and nutrient uptake by the whole plant at any given time.
AB - Aeroponic systems: A unique tool for estimating plant water relations and NO3 uptake in response to salinity stress. The study of transpiration, water, and nutrient uptake during abiotic stress in the root zone is hindered because of the hidden nature of the root zone. In this study, a modified aeroponic system was used to evaluate whole plant transpiration, nitrate and water uptake in the growth and development of tomato plants in response to salinity. Tomato seedlings were exposed to three levels of salinity (1.5, 4.5, and 9 dSm−1) and three levels of nitrate (1, 4, and 8 mM NO3) in a separate experiments conducted concurrently. Whole plant transpiration, water and nitrate uptake were estimated. Our study revealed that ~30 to 35 days after treatment (DAT), water uptake rate per plant increased from a common initial rate of about 0.05 to 1.1, 0.6, and 0.4 kg/day at 1.5, 4.5, and 9 dSm−1 respectively. The NO3 uptake rates in tomatoes grown in 1 and 4 mM NO3 were 5.5 and 22% respectively, of the uptake of tomatoes grown in 8 mM NO3. The estimation of nitrate uptake and lower sensitivity to salinity stress in the aeroponic showed the effectiveness and cost efficiency of the system in the cultivation of vegetables during abiotic stresses. The novelty of the system described is the continuous estimation of root and nutrient uptake by the whole plant at any given time.
KW - abiotic stress
KW - aeroponic
KW - nutrient uptake
KW - tomato
KW - water relations
UR - http://www.scopus.com/inward/record.url?scp=85124392179&partnerID=8YFLogxK
U2 - 10.1002/pld3.312
DO - 10.1002/pld3.312
M3 - Article
C2 - 33817545
SN - 2475-4455
VL - 5
JO - Plant Direct
JF - Plant Direct
IS - 4
M1 - e00312
ER -