Growth and Flowering Responses of Lilium Longiflorum to Bulb and Shoot Light and Temperature Treatments *

Roh, Sug-Won; Wilkins, H. F.

doi:10.17660/actahortic.1975.47.33

Cited by 2 publications

(3 citation statements)

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“…Phytochrome and high energy reaction (HER) mediated growth and flowering responses. Differences in our data and in Einert's et al (20) lily growth and flowering responses using 'Harson' where 4 hr night interruptions of I, R or FR hastened flowering by 22, 15 or 8 days and between Roh and Wilkins' (45) and these data using 'Nellie White' is that FR light is stimu lating. These differences could be attributed to differences between experimental temperature ranges, different light sources, degree of bulb vernalization, and clones.…”

Section: Discussioncontrasting

confidence: 88%

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The Control of Flowering in Lilium longiflorum Thunb. cv. Nellie White by Cyclic or Continuous Light Treatments1

Roh

Wilkins

1977

J. Amer. Soc. Hort. Sci.

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Flowering was accelerated by incandescent light day extensions of 3 minutes of light and 27 minutes of dark or longer light cycles and by 15 minutes of light and 15 minutes of dark cycles when BCJ-ruby incandescent light was given to young shoots from non-vernalized bulbs. If bulbs were vernalized for 3 weeks, cool white fluorescent light accelerated flowering as a day extension. As a night interruption, incandescent, fluorescent or BCJ-ruby incandescent cyclic light treatments accelerated flowering of shoots from vernalized or non-vernalized bulbs. Day extensions of cyclic fluorescent or BCJ-ruby light treatments of 6 minutes on and 24 off or 3 minutes on and 27 off did not mediate a phytochrome controlled flowering response and along with the fact that there was no photoreversibility between day extensions of incandescent, fluorescent or BCJ-ruby incandescent light, indicate a high energy reaction involvement in the flowering of the lily. As a night interruption treatment, a phytochrome mediated flowering response was observed with 3 minutes of light on and 27 off or 6 minutes on and 24 off cyclics of fluorescent or BCJ-ruby incandescent light treatments. However, as the light period increased to 15 minutes on and 15 off or under a continuous light cycle, there were no differences in the flowering response between fluorescent or BCJ-ruby incandescent. As night interruptions there was a reversibility response by R — FR, but not by FR — R. This indicated the simultaneous operation of the phytochrome and the high energy reaction.

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Section: Discussioncontrasting

confidence: 88%

“…These differences could be attributed to differences between experimental temperature ranges, different light sources, degree of bulb vernalization, and clones. Nevertheless, flowering responses were seen between the I and R light treat ments with both our 4 hr night interruption and day extensions and their night interruption (20,45,46).…”

Section: Discussionmentioning

confidence: 81%

The Control of Flowering in Lilium longiflorum Thunb. cv. Nellie White by Cyclic or Continuous Light Treatments1

Roh

Wilkins

1977

J. Amer. Soc. Hort. Sci.

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“…of leaves and days to flower was calculated from potting date. Types of floral buds formed were recorded as described pre viously (10). Medium was 1 soil: 1 peat: 1 perlite, (by vol).…”

Section: Methodsmentioning

confidence: 99%

The Influence and Interaction of Ancymidol and Photoperiod on Growth of Lilium longiflorum Thunb.1

Roh

Wilkins

1977

J. Amer. Soc. Hort. Sci.

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Soil drenches of α-cyclopropyl-α-(p-methyxyphenyl)-5-pyrimidinemethanol (ancymidol) were applied at 3 stages of Lilium longiflorum development. Under a natural photoperiod the internodes of ‘Arai’ lily shoots from vernalized bulbs were reduced by ancymidol without delay of anthesis, but 3 applications reduced flower number and resulted in weak stems. Ancymidol treatments did not delay anthesis of ‘Nellie White’ lilies from non-vernalized bulbs whose shoots were induced to flower by 8 hour long-day photoperiod extensions. However, an apparent interaction occurred between photoperiod and ancymidol as there were increased heights of ‘Nellie White’ lily shoots when treated with ancymidol.

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Growth and Flowering Responses of Lilium Longiflorum to Bulb and Shoot Light and Temperature Treatments *

Cited by 2 publications

References 0 publications

The Control of Flowering in Lilium longiflorum Thunb. cv. Nellie White by Cyclic or Continuous Light Treatments1

The Control of Flowering in Lilium longiflorum Thunb. cv. Nellie White by Cyclic or Continuous Light Treatments1

The Influence and Interaction of Ancymidol and Photoperiod on Growth of Lilium longiflorum Thunb.1

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