TY  - JOUR
AU  - Füllner, K.
AU  - Temperton, V. M.
AU  - Rascher, U.
AU  - Jahnke, S.
AU  - Rist, R.
AU  - Schurr, U.
AU  - Kuhn, A. J.
TI  - Vertical gradient in soil temperature stimulates development and increases biomass accumulation in barley
JO  - Plant, cell & environment
VL  - 35
SN  - 0140-7791
CY  - Oxford [u.a.]
PB  - Wiley-Blackwell
M1  - PreJuSER-9446
SP  - 884 - 892
PY  - 2012
N1  - Record converted from VDB: 12.11.2012
AB  - We have detailed knowledge from controlled environment studies on the influence of root temperature on plant performance, growth and morphology. However, in all studies root temperature was kept spatially uniform, which motivated us to test whether a vertical gradient in soil temperature affected development and biomass production. Roots of barley seedlings were exposed to three uniform temperature treatments (10, 15 or 20°C) or to a vertical gradient (20-10°C from top to bottom). Substantial differences in plant performance, biomass production and root architecture occurred in the 30-day-old plants. Shoot and root biomass of plants exposed to vertical temperature gradient increased by 144 respectively, 297%, compared with plants grown at uniform root temperature of 20°C. Additionally the root system was concentrated in the upper 10cm of the soil substrate (98% of total root biomass) in contrast to plants grown at uniform soil temperature of 20°C (86% of total root biomass). N and C concentrations in plant roots grown in the gradient were significantly lower than under uniform growth conditions. These results are important for the transferability of 'normal' greenhouse experiments where generally soil temperature is not controlled or monitored and open a new path to better understand and experimentally assess root-shoot interactions.
KW  - Biomass
KW  - Carbon: analysis
KW  - Carbon: metabolism
KW  - Hordeum: growth & development
KW  - Hordeum: physiology
KW  - Nitrogen: analysis
KW  - Nitrogen: metabolism
KW  - Plant Leaves: growth & development
KW  - Plant Roots: growth & development
KW  - Plant Roots: physiology
KW  - Plant Shoots: growth & development
KW  - Plant Shoots: physiology
KW  - Seedling: growth & development
KW  - Soil: chemistry
KW  - Temperature
KW  - Time Factors
KW  - Water
KW  - Soil (NLM Chemicals)
KW  - Carbon (NLM Chemicals)
KW  - Nitrogen (NLM Chemicals)
KW  - Water (NLM Chemicals)
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
C6  - pmid:22070728
UR  - <Go to ISI:>//WOS:000302541100004
DO  - DOI:10.1111/j.1365-3040.2011.02460.x
UR  - https://juser.fz-juelich.de/record/9446
ER  -