Contents of chlorophyll a, b and total in apical leaves of <i>L. japonicus</i> Gifu B-129 and MG-20 plants.

<p>Seven-day-old plants were watered with 0.50 Hoagland’s nutrient solution, with or without the addition of 10 mM NaHCO₃ during a period of 21 days. Results are the mean of 12 biological replicates ±SE. Statistical differences between control and treatments within each ecotype are shown as P<0.001 (Duncan’s post-hoc test).