plants - water involved in physiological...

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know mediums and uses asexual propagation – plant subject to damping off? Can have diseases? sexual propagation respiration vs. photosynthesis clay, glazed, plastic pots – pros vs cons single eye vs double eye parts of flower – parts below stamen and pistol complete vs. perfect flower incandescent, candescent, halogen – pros vs. cons overwatering(rooten roots) + underwatering – symptoms phtoperiodism, phototrophism turgidity sessile – what makes up leaf light quality Various functions and attributes of water important to plants will be highlighted: · Plant cells, tissues and organs primarily use water · In order that plant organs grow, their cells must be fully hydrated (full of water) - a condition called turgid . ·majority of nutrients and minerals absorbed by root system, and complex chemicals translocate throughout vascular system requires water as carrier.
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Unformatted text preview: · water involved in physiological process (transpiration, photosynthesis) · The evaporation of plant water primarily from leaves ( transpiration) serves to cool the surface of leaves, thereby reducing heat stress from high levels of heat energy absorbed by plants All water supplied to the soil or medium in the plant container is not available to be taken up by the roots and used by the plant: · gravity draws some through drainage holes · soil/medium particles bind tightly to water, rendering water unavailable for absorption · Minerals ( soluble salts ) in the soil or medium from fertilizers and from tap water attract water and hold it tightly, making it unavailable to the plant Water Quality • Chlorination • Fluoridation • Soft water – calcium replaced by sodium • Hard water – high level of calcium....
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This note was uploaded on 02/24/2009 for the course HORT 2008 taught by Professor Staff during the Spring '08 term at Virginia Tech.

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plants - water involved in physiological...

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