Design and aplication of plant blade surface temperature masuring instrument

In order to research the variation mechanism of blade thickness, analysis the influent of plant canopy-air temperature difference on the blade thickness, we developed the plant blade surface temperature measuring instrument at first, and then researched the correlation between plant canopy-air temperature difference and blade thickness of Chilies and peanuts at different stages. The Experimental results showed that this instrument met the design requirements, and can realize the accurate measurement of leaf surface temperature; meanwhile the blade thickness was in significant positive correlation with canopy-air temperature difference at every stage of the Chilies and peanuts. The result can provide the theoretical and practical basis for monitoring water status, implementing agriculture automation irrigation based on the blade thickness.