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Growth Response of Corn to Changes in Root Temperature and Soil Water Suction Measured with an LVDT 1
Author(s) -
Barlow E. W. R.,
Boersma L.
Publication year - 1972
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1972.0011183x001200020034x
Subject(s) - elongation , biology , linear variable differential transformer , zea mays , water stress , suction , agronomy , poaceae , horticulture , botany , materials science , ultimate tensile strength , composite material , physics , distribution transformer , quantum mechanics , voltage , transformer , mechanical engineering , engineering
The rate of corn ( Zea mays L.) leaf elongation was continuously monitored with a Linear Variable Differential Transducer (LVDT) which accurately measures the rapid changes in leaf elongation rate that occur after a plant is released from stress. Short‐term measurements of leaf elongation rate at varying root temperatures gave qualitatively similar results to those obtained by other workers in long‐term experiments. The leaf elongation rate increased rapidly when plant roots were released from low temperature or water stress. The maximum leaf elongation rate achieved after the the release from stress was higher than the maximum rate of unstressed plants.