Agronomy

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Agronomy
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Plant Processes
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Processes of plant growth

• Photosynthesis
• Respiration
• Absorption
• Transpiration
• Translocation
• Reproduction

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Photosynthesis

• The food and manufacturing process in green
  plants that combines carbon dioxide and water in
  the presence of light to make sugar and oxygen.
• Formula
• 6CO26H2O672Kcal C6H12O66O2

Carbon Dioxide
Light Energy
Glucose Sugar
Water
Oxygen
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Absorption

• The process by which plant roots take in water
  and air

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Translocation

• The process by which food and nutrients are moved
  within a plant from one plant part to another

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Effects of Light, Moisture, Temperature and
Nutrients on Plants
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Light

• Photoperiodism-response of plants to different
  amounts of light regarding their flowering and
  reproduction cycles
• Necessary because of photosynthesis
• Not enough light causes long, slender, spindly
  stems
• Too much light will cause plants to dry out faster

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Moisture

• Needed in large amounts because plant tissues are
  mostly water and water carries nutrients
• Not enough water causes wilting and stunted
  growth
• Too much water causes small root systems and
  drowning which is a result of air spaces in soil
  being filled with water

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Temperature

• Needs vary depending on type of plants
• Either too high or too low will have adverse
  effects

VS
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Nutrients

• Essential for optimal plant conditions
• Has little effect on seed germination

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Combining growth factors

• Ideal quantities and quality will give optimum
  plant growth
• Each has an effect on the other factors
• Unfavorable environmental conditions for plant
  growth causes diseases to be more severe in their
  damages to plants