Cultivating tomato under water and saline stress
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PublisherUniversidad Politécnica de Cartagena
Bibliographic CitationFRANCO, J. A., GARCIA, A. L. Cultivating tomato under water and saline stress. Technology and Knowledge Transfer e-Bulletin, vol.1, no.1, 2010.
Although the effect of water stress and saline stress have been widely studied in tomato plants growing under semi-arid environments, little is known about the interactive effects of the nitrogen supplied during episodes of water stress or about the effect of the application of amino acids in tomato cultivated using saline water. Losses due to blossom-end rot (BER) are common in the tomato plantations where waters with a high salt content are used. It seems that BER (Figure 1) is related not only with one factor but by interactions between water availability, salinity and nutrient ratios in the root zone, air humidity, and inadequate xylem tissue development in the fruit when the plant is exposed to increased salinity. The appearance of BER is related to a decrease in the absorption and translocation of calcium (Ca), due, among other factors, to excessive salinity in the soil solution. The incidence of this disorder is greater as the Ca content in the solution decreases. However, BER ...
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