Abstract

Abstract Seedlings of Lolium multiflorum Lam., Lespedeza stipulacea Maxim., and Bouteloua curtipendula (Michx.) Torr. were grown at 5°C increments between 12° and 37°, 47°, and at alternating temperature regimes of 17°/10°, 25°/18°, 30°/24°, 37°/30°, or 43°/36°. Radicle growth for all species was inhibited at 12° or 17°, and under all alternating temperature cycles. Maximum growth for Lo. multiflorum occurred at 22°, and at 32° for Le. stipulacea and B. curtipendula. No species grew at 47°.

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