Effects of modified sediments on the growth of submerged macrophyte <i>Vallisneria natans</i> under low light conditions.

natans The chlorophyll (a+b) of different light treatments had different trends, the 5% light treatment had an increasing trend, which increased by 26.7% on the 60th day compared with the 12th day, while the 20% light treatment had a decreasing trend, and the 60th day decreased by 38% compared with the 12th day.

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With the increase of experimental time, the root/leaf ratio of the four groups under 5% light treatment showed a decreasing trend.

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