STUDY ON THE VARIATION OF THERMAL ENVIRONMENT AND PHOTOSYNTHESIS CHARACTERISTICS OF STRAWBERRY IN A SOLAR GREENHOUSE

IF 0.6 Q4 AGRICULTURAL ENGINEERING

INMATEH-Agricultural Engineering Pub Date : 2023-08-17 DOI:10.35633/inmateh-70-21

Weiwei Cheng, Yu Wang, Changchao Wang, Tao Wang, Junlin He, Zhouhua Liu

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Abstract

The sunken solar greenhouse is suitable for the development of vertical planting, which results in higher yield. In order to investigate the effect of temperature on photosynthesis of plants, an experimental study was conducted on the temperature and photosynthesis of strawberry plants at different heights in the sunken solar greenhouse. The study showed that when the indoor temperature was higher than 25.5℃, the photosynthesis of plants was inhibited; the transpiration rate decreased by 3.89 and photosynthesis rate decreased by 3.95 when the air temperature increased from 25.5℃ to 33.3℃ and then decreased to 25.4℃ at a height of 1.8m from the indoor floor; there were temperature differences in the vertical direction between the indoor temperatures of the sunken heliostat. The maximum temperatures at 0 m, 0.6 m, 1.0 m, 1.4 m, and 1.8 m height were 20.6°C, 24.1°C, 25.4°C, 25.4°C, 33, and 3°C, respectively, and different temperatures would have different photosynthetic characteristics of plants. This study can provide basic support for greenhouse regulation.

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日光温室草莓热环境变化及光合特性研究

下沉式日光温室适合发展垂直种植，产量较高。为了研究温度对植物光合作用的影响，在下沉式日光温室中对不同高度草莓植株的温度和光合作用进行了实验研究。研究表明，当室内温度高于25.5℃时，植物光合作用受到抑制；在距室内地面1.8m处，气温从25.5℃上升到33.3℃，再下降到25.4℃，蒸腾速率下降3.89，光合作用下降3.95；下沉式定日镜的室内温度在垂直方向上存在温差。0 m、0.6 m、1.0 m、1.4 m和1.8 m高度的最高温度分别为20.6℃、24.1℃、25.4℃、25.4°C、33和3°C，不同温度的植物具有不同的光合特性。这项研究可以为温室调控提供基础支持。

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来源期刊

INMATEH-Agricultural Engineering AGRICULTURAL ENGINEERING-

CiteScore

1.30

自引率

57.10%

发文量