PLS 170C1 Lecture Notes - Lecture 11: Fibrous Root System, Sweet Potato, Dicotyledon
30 Jan 2017
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Roots provide the plant with a large amount of surface contact with the soil so that water and mineral nutrients can be obtained. Conduct water and minerals to stems and leaves. Fibrous root system: monocots, e. g. grass, agave, & orchid families. Tap root system: dicots, e. g. rose, pea, magnolia, cactus, potato and mustard families. Monocots and dicots are classes of owering plants with either one (monocot) or two (dicot) cotyledons in the seed. A cotyledon is a structure in the seed that stores food and nutrients for germination. Biennial dicots (e. g. carrot, beet, sugar beet, parsnip, turnip, rutabaga, and radish) have enlarged taproots that accumulate starch and other carbohydrates. Storage roots found in sweet potato and cassava store carbohydrates in swollen. Pull new bulbs to the appropriate depth in the soil. Plants depend on roots to absorb the water and mineral nutrients that they need for growth and reproduction.
