experimental rate of each herbicide caused near-total mortality of the bedding plants tested, which results in more accurate calculation of EC 10 values (the effective concentration of herbicide expected to cause a 10% reduction in dry weight compared with
of the foliage plants tested, which results in more accurate computation of the effective concentration of herbicide expected to cause a 10% reduction in dry weight compared with control plants (EC 10 ) derived from regression analysis. All
-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
-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
. Cavins et al. (2000) reported that a leachate EC of 1.0 to 2.6 dS·m −1 (as determined by the pourthrough method) is optimal for annuals with low nutrient requirements, whereas 2.0 to 3.5 dS·m −1 is optimal for greenhouse crops with medium nutrient
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
and expressed reduced dry weight of aerial organs including leaf, inflorescence, and flowers when they were irrigated with saline reclaimed water at EC of 5.65 dS·m −1 compared with those with fresh water at EC of 0.87 dS·m −1 . Among 10 woody
.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
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
water (NaCl+DW) to create solutions with an EC of 0, 0.5, 1.0, 2.0, or 4.0 dS·m –1 or to DW with a floral preservative containing carbohydrates and biocide [hereafter referred to as holding solution (HS; NaCl+DW+HS; 10 mL·L –1 Floralife Professional 2