Publication Date

1989

Description

Reproductive development of temperate grass species gener­ally proceeds by exposure to low temperature and short daylength and then to moderate temperature and long daylength. However, differentiation and development of inflorescences can be observed even under short day conditions in spring habit types of temperate grasses and grain crops such as ryegrass, wheat, barley and oats. Similar variations called ever-flowering habit were found in orchardgrass. The purpose of this study was to select the materials for ever­flowering habit, to observe their productive behavior under some temperature and photoperiod conditions and to improve seasonal production by using selected materials in orchard­grass.

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Improvement in Seasonal Production of Orchardgrass (Dactlyis glomerata L.) by Selection for Flowering Habit in Autumn Environment

Reproductive development of temperate grass species gener­ally proceeds by exposure to low temperature and short daylength and then to moderate temperature and long daylength. However, differentiation and development of inflorescences can be observed even under short day conditions in spring habit types of temperate grasses and grain crops such as ryegrass, wheat, barley and oats. Similar variations called ever-flowering habit were found in orchardgrass. The purpose of this study was to select the materials for ever­flowering habit, to observe their productive behavior under some temperature and photoperiod conditions and to improve seasonal production by using selected materials in orchard­grass.