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JSS 1 Agricultural Science (1st, 2nd & 3rd Term) Agricultural Science (All Classes)

Classification of crops based on life span

Annual, Perennial, Biennial

Annual plants  – Plants that perform their entire life cycle from seed to flower

Annual Plains Coreopsis

to seed within a single growing season. All roots, stems and leaves of the plant die annually. Only the dormant seed bridges the gap between one generation and the next.

Biennial plants – Plants which require two years to complete their life cycle.

Perennial Plants  – Plants that persist for many growing seasons. Generally the top portion of the plant dies back each winter and regrows the following spring

Perennial Purple Coneflower

from the same root system (e.g. Purple Coneflower). Many perennial plants do keep their leaves year round and offer attractive borders and groundcover (e.g. Tickseed, Shasta and Ox-Eyed Daisy).

 

See also

Plant Forms

Parts of a Plant

Fishery

Forms of Agriculture

IMPORTANCE OF AGRICULTURE

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