Open AccessBehaviour of relative evapotranspiration with agrometeorological stress indices in wheat
Author(s) -
O. P. Bishnoi,
Mohan Singh,
Sarva Jit Singh
Publication year - 1995
Publication title -
mausam
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.243
H-Index - 12
ISSN - 0252-9416
DOI - 10.54302/mausam.v46i1.3178
Subject(s) - evapotranspiration , transpiration , canopy , irrigation scheduling , environmental science , irrigation , moisture stress , water stress , water content , vapour pressure deficit , moisture , relative humidity , atmospheric sciences , agronomy , hydrology (agriculture) , geography , meteorology , geology , botany , biology , photosynthesis , ecology , geotechnical engineering
Complex behaviour of stress indices with relative evapotranspiration was observed in early and late sown wheat, however, under normal sown conditions it was linearly decreasing. Predawn leaf water potential and transpiration rate proved to be a stable stress index parameter for characterizing the internal moisture status in the plant as compared to the canopy temperature and stomatal resistance under stress conditions in wheat. Since it is easy to quantify canopy/leaf temperature and within seasonal variations it is widely used for scheduling irrigation and quantigying moisture stress effects on growth and development in wheat.