Flowering responses to daylength and temperature in Dactylis glomerata L.

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Abstract
Flowering responses of three clones of Dactylis glomerata L. to different daylength and temperature combinations and sequences were studied. These showed that: To explain these results an hypothesis is proposed that the development from the vegetative to the reproductive state involves a gradual progression from induction to initiation rather than two distinct stages. On this basis, warm long days destroy the early stages of induction and warm short days the later stages of induction.