motivate consensus around minimum standards for research data and industry assessments. The resulting morphology and physiology standards from the ASHS Hemp workshop are presented here with a focus on plant height, flowering time, and crop quality
7 d from the beginning of the trial period until 2 weeks after the last fungicide application and were expressed as a percentage of the foliage area affected. Plant height and width were taken at the beginning and end of each trial to determine
regulators (PGRs) are commonly used to control plant growth habit, including plant height and branching, while reducing the time of production and labor costs and improving plant quality ( Cohen, 1978 ; Sajjad et al., 2017 ). One such PGR is dikequlac sodium
the flats of rhizomes. Plants were grown in a greenhouse with set points as described, and after 30 d, plants were transplanted to 307-mL containers using the same medium and plant height (measured from the potting medium surface to the apex of the
cotyledon stage. However, this recommendation is based solely on plant height, although other growth components are also known to be affected by ABA ( Taiz and Zeiger, 2010 ). Moreover, high-dose applications of ABA have negative side effects such as leaf
favored by intermediate mowing frequencies ( Smith and Fellowes, 2014 ) where lawns were mowed to 4 cm when they attained 6 cm in height. One observational study in Paris found that mowing frequency, among other factors, negatively impacted plant diversity
Clay Works, Denver, CO). In the seed application tests in 2005, emergence of all planted seeds and plant height of all emerged seedlings were determined. In all tests in which GA 3 was applied to the foliage, four seeds were planted per pot and thinned
plant height to the canopy diameter, indicating the plant architecture. The ADR may vary substantially among cultivars because of the numerous species that have been used to breed yellow-flowering magnolia. Because the ADR is an important criterion when
were collected throughout the experiment. Plant height (centimeters) was determined by measuring the highest point of the foliage from the surface of the substrate and plant diameter (centimeters) by measuring the widest point and its perpendicular axis
analyzer (Ciras-3; PP Systems, Amesbury, MA) between 1000 and 1200 hr , with in-cuvette conditions of 390 ppm CO 2 and 1000 µmol quanta/m 2 /s of PAR. Nondestructive plant growth variables included stem height and diameter measured 10 cm above the surface