Effects of Autumn and Winter Light and Temperature Management on Lead Emergence in MericlonedCymbidium Lovely Angel 'The Two Virgins'

摘要

The mericloned Cymbidium Lovely Angel 'The Two Virgins' is known among commercial growers as a difficult cultivar in which to induce leads. At Yatsugatake Experimental Farm, Yamanashi Agricultural Experimental Station (Takane, Kitakoma, 955 m elevation), we studied the effects of autumn and winter light and temperature management on the number of leads in this cultivar. Variations in both light intensity and night temperature showed great effects on the Cymbidium plants. Low night temperature promoted the development of leads, while low light intensity retarded lead development. The number of leads was not correlated with obvious growth characteristics such as the number of leaves or leaf length.