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Yen-Hua Chen and William B. Miller

stress, such as neck-bend of the peduncle, turgor loss of petals and leaves, and retarded flower opening ( Van Doorn 1990 ). Water uptake of cut flowers is driven by transpiration. When water loss via stomata is more than water uptake, water stress ensues

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Silvia Jiménez, Mónica Pérez, Blanca María Plaza, Roberto Salinas, and María Teresa Lao

between water and ion uptake, as well as from variations in the nutrient solution concentration ( Pardossi et al., 2004 ). It is difficult to maintain the nutrient balance, because plant uptake can vary among different plant species ( Ehret et al., 2005

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S.M. Smith, J.W. Scott, J.A. Bartz, and S.A. Sargent

temperatures and dryer stem scars. Keeping fruit shaded after harvest is helpful because it reduces sun-induced fruit warming, which reduces the demand for water heating and cooler fruit are less prone to water uptake than warm fruit ( Bartz, 1999 ). Soft rot

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Silvia Jiménez Becker, Blanca María Plaza, and María Teresa Lao

estimation of the nutrient uptake can be useful tools for integrated fertigation management, permitting a more rational use of the nutrients and a higher water and fertilizer use efficiency ( Jiménez et al., 2007 , 2008 ). There are not many empirical models

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Martin P.N. Gent

decrease in water stress and an increase in leaf conductance ( Baille et al., 2001 ). However, for tomato, leaf transpiration in response to sunlight was less under shade than in a greenhouse without shade ( Medrano et al., 2004 ). Nutrient uptake and use

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Constantinos Tzerakis, Dimitrios Savvas, Nick Sigrimis, and Georgios Mavrogiannopoulos

of micronutrient accumulation in closed hydroponic systems and their impacts on micronutrient uptake. In closed hydroponics, the volume of water introduced to the system is essentially equal to that removed through transpiration if all the drainage

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Silvia Jiménez Becker, Maria Teresa Lao, and Mari Luz Segura

some mechanistic assumptions ( Pardossi et al., 2004 ). The list of factors (input or independent variables) assumed to influence crop mineral relations such as environmental conditions and water uptake can be regarded as a mechanistic assumption in

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Lucas O’Meara, Matthew R. Chappell, and Marc W. van Iersel

-tolerant plants can undergo osmotic adjustment in the root and leaf tissues that enable the plant to preserve the water potential gradient necessary to facilitate water uptake under drought conditions ( Hsiao and Xu, 2000 ). As the water content within the plant

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Erin P. Moody, John M. Dole, and Jared Barnes

uptake is one of the most important factors in improving the length of vase life of cut flowers ( Halevy and Mayak, 1979 ). As the leaves on the flowers transpire, water is drawn up through the xylem. If this process is impeded by a vascular blockage or

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Iftikhar Ahmad, John M. Dole, Atyab Amjad, and Sagheer Ahmad

events, when demand exceeds supply, to increase profitability. Cut stems placed in water will develop a negative water balance when water uptake is less than water loss. This situation is often the result of xylem plugging at the stem base ( van Meeteren