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Factors Affecting Seed Germination - Coggle Diagram
Factors Affecting Seed Germination
Type of Seed
Pumpkin Seed
Optimum Temperature: 29.4°C to 35°C
Optimum pH: 6.0 to 6.5
Sesame Seed
Optimum Temperature: 25°C to 30°C
Optimum pH: 5.5 to 8.0
Sunflower Seed
Optimum Temperature: 25°C to 28°C
Optimum pH: 6.0 to 7.5 (Alkaline Soil)
Pomegrante Seed
Optimum Temperature: 24°C to 26°C
Optimum pH: 5.5 to 7.0 [Neutral or Slightly acidic]
Quinoa Seed
Optimum Temperature: 15°C to 20°C
Optimum pH: 6.0 to 7.5
Flax Seed
Optimum Temperature: 18°C to 21°C
Optimum pH: 6.0 to 6.5
Coriander Seed
Optimum Temperature: 18°C to 21°C
Optimum pH: 6.5 to 7.5
Chia Seed
Optimum Temperature: 20°C to 30°C
Optimum pH: 6.0 to 8.5
pH
Acidic
pH less than 7.
Considered high pH
Causes gaps in nutrient availability
Minerals with concentrations harmful for seeds are present
Alkaline
pH greater than 7, up to 14.
Considered low pH
Zinc and Copper become chemically unavailable
Temperature
Higher than Seed's Optimum Temperature
Affect on Seed Growth after Germination
Directly affects the germination process
Seed's Optimum Temperature
Effective growth
Lower than Seed's Optimum Temperature
Affect on Seed Growth after Germination
Salinity
Natural Salinity
Dryland Salinity
Prevents water uptake by creating osmotic potential
Decrease in Germination Rate
Increase in Germination time
Irrigation Salinity
Water Availability
Too much water
Causes Waterlogging and Compaction
Poor Seed Germination
Not enough water
Cellular Metabolic Processes and growth can't occur