Effects of Daylength and Temperature on Flowering in Juvenile and Adult Phalaenopsis Plants

Kazuo Yoneda, Hirofumi Momose, Satoshi Kubota
1991 Engei Gakkai zasshi  
The timing of flower stalk emergence and the onset and duration of flowering of hybrid juvenile (3-yr-old) and adult (6-yr-old) white-flowered Phalaenopsis plants as affected by an 8-hr day, natural daylength, and two temperatures and growing under varying light intensities were evaluated. The experiments were conducted in a growth chamber, greenhouse, and outdoors from July to late October. The short day trials lasted for 55 days. 1. The 8-hr day advanced the emergence of flower stalks by 5 to
more » ... 7 days in juvenile and adult plants held at 23°C as compared to those held under natural daylength (1986). Some
doi:10.2503/jjshs.60.651 fatcat:otpigwngw5ho3lzubryk4ys43y