Generally seeds of species growing in cool temperate and dry tropical areas need some sort of pre-sowing treatment is/are:
Correct answer: B. All of the above
- A. Weathering: Seed is exposed to sunlight, wind and rain
- B. All of the above
- C. Fire treatment: Seed is covered with grass etc. And grass is put on fire
- D. Water treatment: Seed is soaked in hot or cold water for some hours or even days before sowing
- E. Mechanical treatment: In order to break hard seed coat seed is beaten or crushed
Explanation
Pre-sowing treatments may overcome dormancy or a hard seed coat; examples include weathering, mechanical scarification, fire treatment, and soaking in water. The suitable method depends on the species, so the listed methods collectively represent the available treatments.
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