Fig. 10
Effects of sodium nitroprusside (SNP; 10 mg L−1) on the DPPH activity (a), ABTS activity (b), total polyphenol content (c), and total flavonoid content (d) in the petals of different carnation ‘Venus’, ‘Tico Tico’, and ‘Shino Lily’, which were collected on day 9 after the treatment. Data represent mean of three replicates, while bar indicates standard deviation. Means with two asterisks (**) are highly significant (T-test, p < 0.01)