Question

How light affects germination in Pea and Onion seeds?

Answer 1

Most plants need light to grow and keep them healthy, but not all plants need light to germinate, as some seeds find light a hindrance. The explanation of how light affects some seeds and causes them to be in a state of readiness for germination and yet prevents other seeds if necessary from germinating is highly complex. A seed which requires darkness but is exposed to light will not germinate. Example: Germination in pea seeds is hastened by the presence of light, germination of onion seeds is inhibited by light.