Claim · model-written summary
In the 30-day treatment, bud developmental stages affected crown bud appearance, which was influenced by both temperature and photoperiod.
- Taxon
- chrysanthemum
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Chrysanthemumt0 - Outcome
- appearence of crown bude0
- Qualifier
- In 30 days' treatmente0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“In 30 days' treatment, stages of flower bud development affected the appearence of crown bud, which was influenced by both factors.”
t0“chrysanthemum”
Title
Responses of fall-flowering chrysanthemum varieties to photoperiod and temperature (I)
S. IWAMA; S. IWAI Journal of the Japanese Society for Horticultural Science 1954. doi:10.2503/jjshs.22.249
Other claims from this paper (19)
- Intervention effect Tatsunami differentiated flower buds at the same time irrespective of photoperiod.
- Intervention effect Shinanogawa differentiated flower buds at the same time irrespective of photoperiod.
- Intervention effect Hakuba differentiated flower buds at the same time irrespective of photoperiod.
- Observation The other 14 varieties differentiated flower buds when day length reached 14.5 hours.
- Observation Shintoa flower bud differentiation was somewhat earlier than in other varieties.
- Observation Pinktoa flower bud differentiation was somewhat earlier than in other varieties.
- Observation Shingetsuyu flower bud differentiation was somewhat earlier than in other varieties.
- Observation Minori flower bud differentiation was somewhat earlier than in other varieties.
- Intervention effect In Tatsunami, Shinaogawa and Hakuba, bud development was unaffected by photoperiod, and cooler temperature delayed flowering.
- Observation The other 14 varieties developed flower buds when daylength reached 13.5 hours, with development affected by temperature and photoperiod.
- Intervention effect Higher temperature did not retard bud development in Shintoa, Pinktoa, Shingetsuyu and Minori.
- Intervention effect Higher temperature retarded bud development in the other ten named varieties even under short days.
- Intervention effect Twenty days of 10-hour shading produced many crown buds from imperfect flower bud development.
- Observation No variety formed a perfect flower under the 20-day shading treatment.
- Observation Temperature conditions alone determined flowering earliness in temperature-sensitive varieties.
- Observation In varieties sensitive to both factors, flowering earliness depended on time from bud differentiation to flowering.
- Recommendation For shade culture the authors recommend varieties with relatively short time from treatment onset to flowering.
- Intervention effect Rather higher temperature forced flowering in Shintoa, Pinktoa, Minori and Shingetsuyu.
- Intervention effect Higher temperature retarded flowering in the ten named varieties.