Germination of the seeds of lettuce using the aquaponic method
The present article shows the data about the germination of the seeds of lettuce wetted with various kinds of water, namely, tap water, water from the river, water from fish tanks, and that from a well. The germination rate of the seeds wetted with the tap water was 94 %, with the water from the river — 97 %, and with the water from the well — 99 %. The highest germination rate was observed in the sample wetted with the water from a fish tank; it reached 100 %. At the end of the experiment the sprouts in the test samples 2.2 times exceeded the reference, by 69.0 and 63.7 %, respectively, which is evidence that germination of the seeds wetted with the water from a fish tank, from the river, and from the well accelerates germination of lettuce seeds. At the end of germination, the average number of leaves in the third and the fourth groups exceeded the reference value by 13.6 %; and in the second group, the number of leaves was greater by 11.4 % than in the reference group. This is evidence that the shoots wetted with the water from the river and a fish tank developed most intensively.
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