. Science of plant life, a high school botany treating of the plant and its relation to the environment. Botany. 148 Science of Plant Life .^. ^ &i.'. •^ Fig. 85. Effects of wind on trees along the Bay of Fundy, Nova Scotia. The light. The amount of light available to a plant de- pends primarily upon the intensity of the sunshine. This is greatest in the tropics and least at the poles. The total amount of light is influenced also by the length of the day. At the equator the daylight lasts 12 hours; at the pole, the light continues all summer. So tropical plants have in- tense light during
. Science of plant life, a high school botany treating of the plant and its relation to the environment. Botany. 148 Science of Plant Life .^. ^ &i.'. •^ Fig. 85. Effects of wind on trees along the Bay of Fundy, Nova Scotia. The light. The amount of light available to a plant de- pends primarily upon the intensity of the sunshine. This is greatest in the tropics and least at the poles. The total amount of light is influenced also by the length of the day. At the equator the daylight lasts 12 hours; at the pole, the light continues all summer. So tropical plants have in- tense light during half of each day, while arctic plants have weak light continuously through the growing season. Locally the light is modified by clouds and fogs. These are much more prevalent along the seacoast than inland, and are particularly common along the Pacific coast from Alaska to California. The slope of the land, especially in mountain regions, may increase or decrease the intensity and the length of daylight. Finally, plants may have their light reduced or cut off by trees or other Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Transeau, Edgar Nelson, 1875-1960. Yonkers-on-Hudson, N. Y. , World Book Co.
Size: 2416px × 1034px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectbotany, bookyear1921
