1. Water relations and Energy balance

2. Ψ=Water potential Ψ = Ψ π + Ψ p + Ψ m + Ψ g Ψ π = osmotic potential
Ψ p= pressure potential
Ψ g= gravitational potential
Ψ m= matric potential

3. Water potential -13.7 Mpa, (50 % relative humidity) -2.3 -1.9 -1.5
-0.1 (moist soil)

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7. Whole-plant adaptations to low water availability
Drought avoidance
Drought deciduous
Drought tolerant

8. Anatomical and morphological adaptations
Leaf size and shape
Stomata properties
Characteristics of the cuticle
Pubescence
Vascular tissue
Roots

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20. Energy balance Short wave radiant energy Long wave radiant energy
Convection
Leaf boundary layer
Latent heat
Conduction

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22. Energy Balance Rn = the net amount of radiant heat energy
H the sensible heat (conduction +convection) loss
λE = latent heat loss

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