The Germination of Seeds, Growth of Plants and Development of Chlorophyll as Influenced by Selective Solar Irradiation

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Abstract
The ultra-violet and infra-red portions of sunlight stimulate germination and enhance growth and development. The green portion of the solar spectrum, which is its region of maximal energy, inhibits germination and growth. The development of chlorophyll is enhanced under the yellowish-green, green, and greenish-blue regions of the spectrum; the least development of chlorophyll occurs under the ultra-violet and infra-red portions.