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29 Sep 2019
1) a)Explain why water uptake by a plant is zero when soils are at the permanent wilting point.Is permanent wilting point of a plant defined by the inherent soil characteristics or by the plant growing in that soil?
b) Explain the differing values of hydraulic resistance and âwall supportâ in vessels and tracheids. What is the primary function of transpiration for in maintaining their physiological integrity? What is the fundamental difference in root pressure and transpiration in the movement of water up the plant stem?
1) a)Explain why water uptake by a plant is zero when soils are at the permanent wilting point.Is permanent wilting point of a plant defined by the inherent soil characteristics or by the plant growing in that soil?
b) Explain the differing values of hydraulic resistance and âwall supportâ in vessels and tracheids. What is the primary function of transpiration for in maintaining their physiological integrity? What is the fundamental difference in root pressure and transpiration in the movement of water up the plant stem?
Deanna HettingerLv2
29 Sep 2019
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