Relation between Cotton Leaf Temperature and Meteorological Conditions

Leaf temperature is a critical physiological index of plant.In this paper,the cotton leaf temperature of the experimental land is measured and the relation between leaf temperature and local meteorological factors is analyzed.The order of correlation between cotton leaf temperature and local meteorological factors from high to low is air temperature,sunshine duration,air velocity,air relative humidity and air saturated water vapor pressure deficit.In addition,the fitting equation for the relation between cotton leaf temperature and air temperature is established.Its correlation coefficient is 0.935 26.The equation has good fitting result and can be used to forecast the cotton leaf temperature to guide the production and irrigation of cotton crop.So it has good practical value.