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Quantitative responses of tomato yield, fruit quality and water use efficiency to soil salinity under different water regimes in Northwest China by Hao Li; Xuemin Hou; Nadia Bertin; Risheng Ding; Taisheng Du is a Agricultural and Biological Sciences article available to read on EtoBox.

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Reduced irrigation and high soil salinity are widely recognized to decrease tomato yield, but they can improve fruit quality and water use efficiency (WUE) when imposed appropriately. However, the response of plant to their interaction is still unclear, and the quantitative relationship of WUE and fruit quality with salinity under different water regimes is also lacking. This study investigated the responses of tomatoes in terms of yield, fruit quality, and WUE based on yield (WUE y ), biomass (WUE b ), and leaf (iWUE) to twelve treatments, consisting of combinations of three water regimes relative to the field capacity (FC) (W0, W1, and W2 refer to 95 % FC, 75 % FC, and 60 % FC, respectively) and four soil salinity levels (0 g, 2 g, 4 g, and 6 g salt mixtures added to 1000 g airdried soil, respectively). Results showed that WUE y and WUE b had a negative correlation with salinity under different water regimes. Salinity resulted in a greater reduction in yield and biomass than water consumption compared to the control treatment. Therefore, lower water consumption of plants under W2 treatment alleviated the decrease of WUE y induced by salinity to a certain extent. From the leaf sca

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Author

Hao Li; Xuemin Hou; Nadia Bertin; Risheng Ding; Taisheng Du

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Agricultural and Biological Sciences (Physical Sciences)