Growth of Seeds

Plants in nature, fields of flowers. Different types of plants with labels. Time-lapse sequences.

Tells of the importance of seed producing plants, distinguishes between angiosperms and gymnosperms and between dictyledons and monocotyledons. Through time-lapse photography, shows the germination of a variety of seeds. Illustrates with samples of the various seeds and explains that all seeds are alike in that they contain an embryo , a seed coat and food. By drawings distinguishes between monocots and dicots and discusses the plumule and hypocotyl. Depicts the treating of seeds to speed germination and by time-lapse photography, demonstrates germination. Points out that the size of the seed is no indication of the size of the resulting plant.