Lec10TranspirationAndWaterStress

Tiny leaves decrease their surface to thicker cuticle

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Unformatted text preview: owth rates it has a large stem to store the water and it is a CAM plant so it can close their stomata during the day. Water Stress Adaptations to Water Stress • Fine surface root systems • Enlarged stems to store water • Osmoregulation* – Osmotic adjustment – Reduce osmotic potential which will increase water potential gradient • Decreasing leaf conductance • Slow growth rates Water Stress Adaptations to Water Stress • • • • Fine surface root systems Enlarged stems to store water Osmoregulation Decreasing leaf conductance* – – – – – – Small leaves these are the ways to decrease water use. tiny leaves decrease their surface to Thicker cuticle volume ratio and that decrease water use. Tomentose leaves Leaf orientation Leaf color Fewer stomatA • Slow growth rates Water Stress Adaptations to Water Stress • Rapid germination in presence of water • Rapid completion of life cycle Text – Annuals – Perennials • California bu...
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This document was uploaded on 01/17/2014.

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