Effects of CO_𝟐 Enrichment on Growth and Development of Impatiens hawkeri

Figure 2

The numbers of flower, flower bud, and lateral branch of Impatiens New Guinea grown under two CO₂ concentrations: ambient CO₂ (380 μmol·mol⁻¹) and elevated CO₂ (760 μmol·mol⁻¹). Asterisks show statistically significant differences (^∗𝑃<0.05; ^∗∗𝑃<0.01; Student’s t-test; 𝑛=34 samples, with 3 plants per sample) and the bar is the standard deviation.