water relations and energy balance. Ψ= water potential Ψ π = osmotic potential Ψ p = pressure...
Post on 17-Dec-2015
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Ψ=Water potential
• Ψ π = osmotic potential• Ψ p= pressure potential
• Ψ g= gravitational potential • Ψ m= matric potential
Ψ = Ψ π + Ψ p + Ψ m + Ψ g
Whole-plant adaptations to low water availability
• Drought avoidance
• Drought deciduous
• Drought tolerant
Anatomical and morphological adaptations
• Leaf size and shape
• Stomata properties
• Characteristics of the cuticle
• Pubescence
• Vascular tissue
• Roots
Latent heat
Energy balance
Convection
Conduction
Leaf boundary layer
Short wave radiant energy
Long wave radiant energy
Energy Balance
0 EHRn Rn = the net amount of radiant heat energy
H the sensible heat (conduction +convection) loss
λE = latent heat loss
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