Effect
Kelpak treated Swiss Chard, c.v. Fordhook Giant, at pH 4.5 showed no significant difference in leaf and root fresh weight, chlorophyll a and carotenoid content, but did show significantly increased chlorophyll b content at 0 mg/K Ca2+, compared to untreated control plants. Kelpak treated Swiss Chard at pH 6.5 showed no significant difference in leaf and root fresh weight, but significantly reduced (at 0 mg/L Ca2+) and increased (at 200 mg/L Ca2+- chlorophyll a, b and carotenoid content, compared to untreated control plants. Kelpak treated Swiss Chard at pH 8.5 showed no significant difference in leaf and root fresh weight, chlorophyll a, b or carotenoid content (only significant higher chl and carotenoids contents at 200 mg/L Ca2+) compared to untreated control plants.
