In addition, plants sense the seasonal change in light intensity, the length of daytime, temperature, etc. and decide when to germinate, when to grow and when to bloom. Daily and seasonal change in plants are cued by changes in the quality and quantity of sunlight and orchestrated by the biological clock in plants. Perilla plants were reported to produce only 6% of seeds when grown next to street lights. It is because the biological clock of plants was disturbed by the artificial light overnight. Thank you,
Jinwon Kim, Ph.D. Biologist * Next week’s topic : Light and fish.
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