Effects of Heavy Metals on Leaf Area, Chlorophyll, and Growth of Plants

The influence of heavy metals on plant leaf area, chlorophyll, and growth The quality and safety of agricultural products is an important part of food safety. Heavy metal pollution is an important factor affecting the quality and safety of agricultural products. Not only does it lead to reduced soil fertility, but it also reduces crop yields and quality. When the soil contains a large amount of heavy metals, the plants will absorb them, which will directly affect the growth and development of the roots, stems, and leaves of the plants. At the same time, it will have a certain influence on the germination process of the seeds. The leaf area of ​​the plants The amount of influence can be directly manipulated and analyzed using the leaf area meter, while the handheld chlorophyll meter is an instrument for the important detection of plant chlorophyll content.
Heavy metals have a strong inhibitory effect on the germination process of the seeds. In the soil where the content of heavy metals is excessive, the germination rate of the seeds cannot reach the desired germination rate. After the heavy metal elements enter the soil, they are absorbed by the crops and transported in the plants. The root is the most important part of the plant body that binds heavy metals and is also the site most susceptible to the toxicity of heavy metals. Therefore, the heavy metal has the most important influence on the roots of the plant. After the heavy metal enters the plant body, the plant will be poisoned and grow. It was severely inhibited. At the same time, symptoms such as chlorosis of leaves, slow growth, dwarfing plants, yield decline, and even death occurred.
The leaf area of ​​the plant was determined by living leaf area meter and the analysis showed that the leaf area of ​​heavy metal-contaminated plants was much smaller than that of the polluted ones, while the handheld chlorophyll meter also analyzed the serious impact of heavy metals on the chlorophyll content of plants. In the leaves of plants, heavy metals inhibited the original chlorophyllate reductase activity and the amount of chlorophyll content was reduced. As a result, the chlorophyll content is reduced.

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