Details
| Original language | English |
|---|---|
| Article number | 887 |
| Journal | Frontiers in Plant Science |
| Volume | 6 |
| Issue number | OCTOBER |
| Publication status | Published - 20 Oct 2015 |
Abstract
Tomato (Solanum lycopersicum L.) is an important vegetable crop and often cultivated in regions exposed to salinity and high temperatures (HT) which change plant architecture, decrease canopy light interception and disturb physiological functions. However, the long-term effects of salinity and HT combination (S+HT) on plant growth are still unclear. A dynamic functional-structural plant model (FSPM) of tomato was parameterized and evaluated for different levels of S+HT combinations. The evaluated model was used to quantify the contributions of morphological changes (architectural effects) and physiological disturbances (non-architectural effects) on the reduction of shoot dry mass under S+HT. The model predicted architectural variables with high accuracy (>85%), which ensured the reliability of the model analyses. HT enhanced architectural effects but reduced non-architectural effects of salinity on dry mass production. The stronger architectural effects of salinity under HT could not be counterbalanced by the smaller non-architectural effects. Therefore, long-term influences of HT on shoot dry mass under salinity were negative at the whole plant level. Our model analysis highlights the importance of plant architecture at canopy level in studying the plant responses to the environments and shows the merits of dynamic FSPMs as heuristic tools.
Keywords
- Allometric relationship, Canopy architecture, Canopy photosynthesis, Dynamic functional-structural plant model, High temperature, Salinity, Stress combination, Tomato
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Plant Science
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In: Frontiers in Plant Science, Vol. 6, No. OCTOBER, 887, 20.10.2015.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - High temperature and vapor pressure deficit aggravate architectural effects but ameliorate non-architectural effects of salinity on dry mass production of tomato
AU - Chen, Tsu Wei
AU - Nguyen, Thi M.N.
AU - Kahlen, Katrin
AU - Stützel, Hartmut
PY - 2015/10/20
Y1 - 2015/10/20
N2 - Tomato (Solanum lycopersicum L.) is an important vegetable crop and often cultivated in regions exposed to salinity and high temperatures (HT) which change plant architecture, decrease canopy light interception and disturb physiological functions. However, the long-term effects of salinity and HT combination (S+HT) on plant growth are still unclear. A dynamic functional-structural plant model (FSPM) of tomato was parameterized and evaluated for different levels of S+HT combinations. The evaluated model was used to quantify the contributions of morphological changes (architectural effects) and physiological disturbances (non-architectural effects) on the reduction of shoot dry mass under S+HT. The model predicted architectural variables with high accuracy (>85%), which ensured the reliability of the model analyses. HT enhanced architectural effects but reduced non-architectural effects of salinity on dry mass production. The stronger architectural effects of salinity under HT could not be counterbalanced by the smaller non-architectural effects. Therefore, long-term influences of HT on shoot dry mass under salinity were negative at the whole plant level. Our model analysis highlights the importance of plant architecture at canopy level in studying the plant responses to the environments and shows the merits of dynamic FSPMs as heuristic tools.
AB - Tomato (Solanum lycopersicum L.) is an important vegetable crop and often cultivated in regions exposed to salinity and high temperatures (HT) which change plant architecture, decrease canopy light interception and disturb physiological functions. However, the long-term effects of salinity and HT combination (S+HT) on plant growth are still unclear. A dynamic functional-structural plant model (FSPM) of tomato was parameterized and evaluated for different levels of S+HT combinations. The evaluated model was used to quantify the contributions of morphological changes (architectural effects) and physiological disturbances (non-architectural effects) on the reduction of shoot dry mass under S+HT. The model predicted architectural variables with high accuracy (>85%), which ensured the reliability of the model analyses. HT enhanced architectural effects but reduced non-architectural effects of salinity on dry mass production. The stronger architectural effects of salinity under HT could not be counterbalanced by the smaller non-architectural effects. Therefore, long-term influences of HT on shoot dry mass under salinity were negative at the whole plant level. Our model analysis highlights the importance of plant architecture at canopy level in studying the plant responses to the environments and shows the merits of dynamic FSPMs as heuristic tools.
KW - Allometric relationship
KW - Canopy architecture
KW - Canopy photosynthesis
KW - Dynamic functional-structural plant model
KW - High temperature
KW - Salinity
KW - Stress combination
KW - Tomato
UR - http://www.scopus.com/inward/record.url?scp=84947445001&partnerID=8YFLogxK
U2 - 10.3389/fpls.2015.00887
DO - 10.3389/fpls.2015.00887
M3 - Article
AN - SCOPUS:84947445001
VL - 6
JO - Frontiers in Plant Science
JF - Frontiers in Plant Science
SN - 1664-462X
IS - OCTOBER
M1 - 887
ER -