Effects of different drought treatments on root and shoot development of the tomato wild type and flacca mutant

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Abstract

The effects of drought and partial root drying (PRD) on shoot and root growth was assessed in the wild type Ailsa Craig (WT) and the flacca tomato mutant deficient in the plant hormone ABA. Our results show that drought had an inhibitory effect on shoot growth in flacca and especially in WT; the most profound effect was observed in FI (full irrigation), then PRD and the smallest in D plants. Root development in both WT and flacca was stimulated after the 3 rd day of the experiment following a decrease in the soil water content. On the 11 th day of the experiment, when the soil water content was reduced by about 50% of full irrigation (FI), the root density was increased in the drying part of the PDR and on both sides of the drought treatment. On the basis of these results it can be assumed that increased root density and root length represent an adaptation or root adjustment to drought conditions.

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Prokić, L., & Stikić, R. (2011). Effects of different drought treatments on root and shoot development of the tomato wild type and flacca mutant. Archives of Biological Sciences, 63(4), 1167–1171. https://doi.org/10.2298/ABS1104167P

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