Study on Relationship Between Environmental Factors and Canopy-air Temperature Difference of Autumn-winter Greenhouse Pepper(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Study on Relationship Between Environmental Factors and Canopy-air Temperature Difference of Autumn-winter Greenhouse Pepper

Author(s):: LI Bo; SONG Xiao-ting; WANG Tie-liang; SUN Jian; Water Conservancy College,Shenyang Agricultural University,Shenyang,Liaoning 110866

Keywords:: greenhouse peppers; canopy-air temperature difference; crop water deficiency; environmental factors

Abstract:: Taking pepper ‘35-619’ as material，based on the control variables of soil moisture by plot experiment in the greenhouse,the relationship about autumn-winter greenhouse pepper between canopy-air temperature difference and solar radiation,atmospheric vapor pressure and air humidity were studied.The results showed that canopy-air temperature was obviously higher when soil moisture content was smaller，which could reflect the crop water deficit reasonably.The good multiple correlation of canopy-air temperature difference and the main environmental factors was obtained,the canopy-air temperature incresed with the increasing of solar radiation,and air humidity decreased with the increasing of atmospheric vapor pressure,the correlation coefficient was 0.8468.

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Last Update: 2014-08-10