radiation (PAR) of about 30 Amolm2s1]; and a nethouse (30T1 -C at 11:00 and 31T1 -C at 15:00, under 8–10 h daylight with a PAR varying between about 95–125 A mol m2s1).
As a radiometer was unavailable for recording light measurements,
a lux meter (ANA-325, Tokyo Photo-Electric) was used and the data converted to A mol m2s1 according to George (1993).
Data were analyzed by a two-way analysis of variance, in which shoot number, clump weight, chlorophyll a, chlorophyll b, and carotenoid content after 8 weeks in culture were the
dependent variables. The independent variables were the physical environments for multiplication (growth chamber or nethouse), as well as the 7 hormonal combinations. The content of pigments was analyzed according to Wellburn (1994).