sand indicated the following fractions were present: <0.15 mm, 1.7%; 0.15 to 0.25 mm, 13.9%; 0.25 to 0.50 mm, 55.2%; 0.5 to 1.0 mm, 23.1%; 1.0 to 2.0 mm, 4.7%; and >2.0 mm, 0.3%. The sand had been amended with 10% sphagnum peatmoss (v/v), and was
-5-15; Scotts) to reverse osmosis (RO) water. Table 1. Visual score, height, and shoot dry weight of Texas Superstar ® perennials irrigated with nutrient solution [control, electrical conductivity (EC) = 1.2 dS·m −1 ] or saline solutions (EC = 5.0 or 10.0 dS
-plot design with the salinity treatment as the main plot and 10 species as the subplot with 10 replications per treatment per species. Saline solutions at EC of 5.0 dS·m −1 (EC 5) and 10.0 dS·m −1 (EC 10) were made by adding 1.20 g·L −1 sodium chloride
of variation such as leachate volume. We tested the effects of two leachate volumes (50 mL or 2.5% of container volume) on the pH and EC values obtained from leachate of four container volumes (2, 8, 11, or 27 L). Our objectives were to determine if
adding 1 g·L −1 15N–2.2P–12.5K (Peters 15–5–15 Ca–Mg Special; Scotts, Marysville, OH) to RO water. Saline solutions at an EC of 5.0 ± 0.1 dS·m −1 (EC 5) and 10.0 ± 0.1 dS·m −1 (EC 10) were prepared by adding 20.6 m m sodium chloride (NaCl) and 10.4 m
ornamental taxa evaluated in an 8-week study with saline water irrigation at EC levels of 5.0 or 10.0 dS·m −1 , H. macrophylla ‘Smhmtau’ and ‘Smnhmsigma’ were the most salt-tolerant taxa with minor foliar damage and with the highest leaf sodium and chloride
of 5.0 and 10.0 dS·m –1 , and plants suffered serious foliar damage when supplied with saline solutions at an EC of 10.0 dS·m –1 . The chlorophyll content of ‘ILVOPS’ rose of sharon also decreased significantly under irrigation of saline solutions at
.2 dS·m −1 , control) and saline solutions [EC of 5.0 dS·m −1 (EC 5) and 10.0 dS·m −1 (EC 10)]. The average air temperature in the greenhouse was 27.4 °C day/23.0 °C night. The average daily light integral of ambient light was 12.5 mol·m −2 ·d −1 and
treatment solution was applied. A total of 100 mL distilled water was poured on the surface of the substrate to obtain 50 mL of leachate in the saucer. The leachate solution was collected and tested using an EC meter. One plant per treatment per cultivar was
humidity was 34.7% ± 13.0% during the experiment. Table 1. Height and shoot dry weight (DW) of 10 ornamental taxa irrigated with nutrient solution [electrical conductivity (EC) = 1.2 dS·m −1 ; Control] or saline solution [EC = 5.0 dS·m −1 (EC 5) or 10.0 dS