Complex sentence: Midday leaf gas exchange was measured using a photosynthesis system, which measured the following parameters; net photosynthetic rate, gs, and intercellular CO 2 concentration (Ci).
Split into simpler sentences: Midday leaf gas exchange was measured using a photosynthesis system. This instrument measured the following parameters; net photosynthetic rate, gs, and intercellular CO 2 concentration (Ci).