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The photosynthesis instrument plays an important role in reflecting the plant growth status during the study of plant photosynthetic rate and efficiency. So how does the photosynthesis instrument be implemented in actual operation? We will briefly introduce the instrument's analysis of the solar law of Sudan grass.
The main purpose of studying plant photosynthesis is to explore measures to increase the photosynthetic capacity of plants, thereby increasing yield. Studies have shown that under sunny summer conditions, the daily variation of the photosynthetic rate (Pn) of the Sudan grass shows a fluctuating curve, and the greater value of the photosynthetic rate of the Sudan grass is 11:00, 30.88mol COz/(m20s), and the smaller value is 21;00 For a 0.417 mol COz/(m20s), we can also find that the “midday break†phenomenon of Sudan grass occurs at 13:00-16:00, and the photosynthetic rate and photosynthetically active radiation are not synchronized; The complex physiological process of plants, leaf net photosynthetic rate and white body factors such as chlorophyll content, leaf thickness, leaf maturity, etc. are closely related, but also by the temperature, light intensity, stomatal conductance, transpiration rate, air relative humidity and other effects.
The photosynthetic apparatus was used to study the main environmental factors affecting the photosynthetic rate of Sudan grass. It was found that the temperature was positively correlated with transpiration rate and stomatal conductance, and negatively correlated with relative humidity. This was consistent with the conclusions of other plants. The light intensity directly affects the temperature level. Therefore, the most important environmental factors affecting the photosynthetic rate of Sudan grass are temperature and light.
The main purpose of studying plant photosynthesis is to explore measures to increase the photosynthetic capacity of plants, thereby increasing yield. Studies have shown that under sunny summer conditions, the daily variation of the photosynthetic rate (Pn) of the Sudan grass shows a fluctuating curve, and the greater value of the photosynthetic rate of the Sudan grass is 11:00, 30.88mol COz/(m20s), and the smaller value is 21;00 For a 0.417 mol COz/(m20s), we can also find that the “midday break†phenomenon of Sudan grass occurs at 13:00-16:00, and the photosynthetic rate and photosynthetically active radiation are not synchronized; The complex physiological process of plants, leaf net photosynthetic rate and white body factors such as chlorophyll content, leaf thickness, leaf maturity, etc. are closely related, but also by the temperature, light intensity, stomatal conductance, transpiration rate, air relative humidity and other effects.
The photosynthetic apparatus was used to study the main environmental factors affecting the photosynthetic rate of Sudan grass. It was found that the temperature was positively correlated with transpiration rate and stomatal conductance, and negatively correlated with relative humidity. This was consistent with the conclusions of other plants. The light intensity directly affects the temperature level. Therefore, the most important environmental factors affecting the photosynthetic rate of Sudan grass are temperature and light.
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