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ICSE Class 9 Answered

How corn seed is germinated  
Asked by ayuship2399 | 12 Jan, 2020, 07:17: PM
Expert Answer
  • Germination of corn seed begins with the seed absorbing water, which leads to swelling and a softening of a seed’s coat or testa.
  • The water initiates biochemical activity in the seed. Monocots have starchy seeds and need about 30% moisture content to germinate.
  • After this, internal processes such as cell respiration, protein synthesis and metabolism of food stores.
  • After this, cell division and elongation occur, pushing out the seed’s root and radicle.
  • In monocots, the root that emerges is covered by a coleorhiza, or sheath. Its seedlings’ leaves then come forth, sheathed in a layer known as a coleoptile.
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