A. Weathering: Seed is exposed to sunlight, wind and rain
B. Mechanical treatment: In order to break hard seed coat seed is beaten or crushed
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. All of the above
Advertisement
Advertisement
The correct answer to the question: "Generally seeds of species growing in cool temperate and dry tropical areas need some sort of pre-sowing treatment is/are:" is "All of the above".