Abstract
Three C4 graminoids, Kyllinga nervosa, Themeda triandra, and Hyparrhenia filipendula, were grown in unbalanced factorial treatment designs of clipping height, clipping frequency, watering frequency, and nitrogen availability for periods equivalent to one growing season, after which gas exchange was measured on all plants. Clipped plants in all three species had higher photosynthetic rates, but the percentage of stimulation was least in T. triandra. Stimulation of photosynthesis may have been caused by increased stomatal opening.
Published Version
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