be harvested by machine (Canadian microgreen growers, personal communications). Also, most microgreen species are harvested with a minimum height of around 5 cm, according to Kyriacou et al. (2016) . Although plant elongation can be promoted by
after transplanting (WAT). A weed-free control was also established. Undesired volunteer nutsedge plants and other weeds on bed tops were removed by hand immediately after emergence. A weed-free control was also established. Bell pepper plant height and
, acceptable, somewhat desirable form and color, and little to no chlorosis or necrosis; 10 = excellent quality, perfect condition, healthy and robust, premium color and form, and very marketable). Plant height was recorded immediately before a destructive
flux density ( PPFD ) of 339 ± 17 µmol·m –2 ·s –1 was provided at plant height by fluorescent lamps for 16 h/d and was measured every 15 s with an amplified quantum sensor (SQ-222; Apogee Instruments, Logan, UT). Light intensity and air temperature
texture directly influences the substrate matric potential; however, this force can result in increased water-holding capacity at a given container height by overcoming the gravitational potential of 0.1 kPa·cm −1 from the bottom of the container ( Milks
). After 8 weeks in SD, plant height and number of nodes were evaluated. Kalanchoë longifora and K. pinnata treated with GA 3 were significantly taller compared with the control, but the heights of plants did not differ statistically between 200 and
differences in plant vigor (i.e., fresh biomass), plant height, and the number of leaves. The hydraulic conductivity of xylem vessels in the stem was also measured to explain variations in plant vigor. Materials and Methods Plant materials Seedlings of tomato
) at rates as low as 300 ppm ( Latimer et al., 2011 ), while ‘Silver Lode’ coral bells responded minimally to an application of 600 ppm benzyladenine for both plant height and width ( Latimer and Freeborn, 2015 ). The wide range of possible plant
cm height) round plastic pots filled with commercial substrate with no starter fertilizer (Fafard growing mix 2; Sun Gro Horticulture, Agawam, MA). Fertigation was applied to plants twice per week from 28 Aug. to 28 Sept. in 2012 with plants receiving
( Bacillus thuringiensis ) were made to control cabbage worms ( Pieris rapae ). Measurements. Weekly data were collected on plant height. There were four harvests during the growing season in 2013 and three harvests during the 2014 growing season ( Table 4