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(WinRHIZO version 2012b; Regent Instruments, Quebec, QC, Canada). Root morphologic data collected from these scans included TRL, average root diameter, diameter class length, diameter class length proportions, and total root surface area. TRL of root systems

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), total root surface area (TSA), total root volume (TRV), and average root diameter (ARD). The root phenotypes were quantified via analysis of the scanned images using an established WinRHIZO Pro 2015a Regent instrument software (Regent Instruments Inc

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), average root diameter (ARD, mm), and number of root tips (RT) of each sample were directly analyzed using specific computer image analysis software (WinRhizo Pro 2007d, Regent Instruments, Canada). After root scanning, all root samples were oven-dried at

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rootstock root systems, one hydroponic study comparing two commercial rootstocks (‘Beaufort’ and ‘Heman’) indicated differences in root density but not of average root diameter ( Oztekin et al., 2009 ). The physical aspects of solid substrates can greatly

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number of roots of different classes was counted manually. For the WRS, the following parameters were evaluated (1, 4, 6, 8, 11, and 15 d): total root length [RL (in centimeters)], total projected area [PA (in squared centimeters)], average diameter [AD

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diameter. The diameter of individual roots was determined when they first occurred, and the mean diameter of fine roots in this study was the average diameter of all observed fine roots. Fine root longevity. Individual root longevity was calculated as the

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layer propagation were transferred to 25-L pots constructed of a nonwoven fabric (diameter: 32 cm, height: 35 cm) and filled with a mixture of mountain soil, perlite, compost, and vermiculite (volume ratio: 1:1:1:1). Fig. 1. Rooting of air-layered mango

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soil moisture content. Experimental design. Two olive varieties were sampled, ‘Arbosana’ and ‘Arbequina’, both of which were introduced from Spain as 1-year-old cuttings in 2011. The average diameter of ‘Arbosana’ trees was 4.3 cm, and the average

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roots) was measured with a ruler. An average total root length per plant was calculated for each replicate tray. Root and shoot dry mass per plant were also averaged for each replicate tray. The bench and bench × water type interaction were considered as

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). Inoculated and noninoculated plants were grown for 2 months. Next, an aliquot of the root was taken with a core sampler (23 mm diameter and 110 mm length) from 26 plants of each treatment. Roots were washed with tap water to remove soil debris and then

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