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以青椒“35-619”为试材,通过温室内小区试验,以土壤水分为控制变量,研究了秋冬茬青椒冠气温差与太阳辐射、大气饱和水汽压差和空气湿度等环境因子的关系。结果表明:在土壤含水量较小时青椒的冠气温差明显较高,可以较合理的反映作物水分亏缺程度。冠气温差与各环境因子之间具有较好的复相关关系,冠气温差随着太阳辐射、空气湿度的升高而升高,随着大气饱和水汽压差的增大而降低,相关系数为0.8468。
Taking green pepper “35-619 ” as test material, soil moisture was used as control variable to study the effect of autumn and winter green pepper on the relationship between the difference of canopy temperature and the solar radiation, the atmospheric saturated pressure difference and air humidity relationship. The results showed that when the soil moisture content is small, the temperature difference of the greenhouse gas is obviously higher, which can reflect the degree of water deficit more reasonably. The correlation between the temperature difference of the canopy and the environmental factors was good. The temperature difference of the canopy increased with the increase of solar radiation and air humidity, and decreased with the increase of the pressure difference of saturated water vapor. The correlation coefficient was 0.8468.