Chlorophyll detector and leaf genetic analysis
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The content of chlorophyll in the leaves is constantly changing. Take lawns as an example. In addition to the inherent phenological changes in turfgrass, artificial pruning, irrigation and fertilization also cause changes in chlorophyll content. The change trend of chlorophyll is generally like this. It is relatively low in the dry season (January to February) and the beginning of spring (March) (1.4453 to 2.8773 mg/g and 2.0931 to 2.9687 mg/g), and is completely green (April ) It was higher (2.8360-3.8400 mg/g), but it decreased rapidly after pruning (1.5277-2.8921 mg/g), and it increased after a period of time. The general trend of change between different varieties is the same.
Different turfgrass varieties have different chlorophyll content, and their greenness scores are also different. The higher the chlorophyll content, the darker the color, and the higher the greenness score, there is a good correlation between the two. After the lawn was pruned, the correlation between the two was 0.88, and the others were all above 0.90. At the same time, the chlorophyll content and the greenness had a good correlation. The correlation between the two is relatively close when the turfgrass grows normally, and the correlation coefficient decreases after pruning.
From the above results, we can also see that different leaf chlorophyll content is different, and the chlorophyll content is also different in different positions of the same leaf. The deeper the green color, the greater the chlorophyll content, so under normal circumstances, the vegetative period of plant growth, chlorophyll content It is the highest.
