Table 1
The weight of Solanum nigrum par ts depending on harvest time

Harvest time (date)	Fresh weight (g/plant)	Dry weight (g/plant)	Dry/fresh weight ratio (%)	Root weight (g/plant)
Jul. 10	273±25^1)b2)	68.1±5.1^b	24.9±2.4^a	79±4.7^b
Aug. 10	324±21^ab	77.3±4.8^ab	23.9±2.7^a	94±6.4^a
Aug. 30	352±31^a	84.8±5.6^a	24.1±2.6^a	98±5.9^a
Sep. 10	310±34^ab	76.5±4.3^ab	24.6±2.1^a	89±6.1^ab

Each value represents the mean±SD of three determinations.
Mean with different superscripts (a,b) are significantly different at p<0.05 by Duncan's multiple range test.