+ Translate

Dormancy of seeds as compared with dormancy of bulbs in tulips

, : Dormancy of seeds as compared with dormancy of bulbs in tulips. Acta Horticulturae (47): 331-338

Temperatures below 15 deg C broke tulip seed dormancy, with an optimum around 5 deg. Temperatures above 15 deg increasingly inactivated the effects of a preceding partial chilling, with an optimum around 30 deg. Both actions were quantitative, depending on the level and duration of the temperature and on the genotype of the seed. Temperature effects on seed dormancy are thus very similar to chilling effects on bulbs, but the latter cannot be reversed.

(PDF 0-2 workdays service)

Accession: 000342657

Submit PDF Full Text: Here

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Related references

Roh, S.M.; Wilkins, H.F., 1977: The physiology of dormancy and maturity in bulbs of Lilium longiflorum Thunb. cv. Nellie White. II. Dormancy - scale removal and light treatment of the bulbs. From a study of shoot development in bulbs harvested at different times and subjected to various scale removal, light and temperature treatments it is concluded that there is an innate dormancy, which is present in the mother scales of early harve...

Saniewski, M.; Kawa Miszczak, L.; Wegrzynowicz Lesiak, E.; Okubo, H., 2000: Role of ABA, gibberellins and auxin in dormancy and dormancy release of tulip bulbs. The status of endogenous growth regulators during dormacy and dormancy release and the effects of applying gibberellins, auxins and abscisic acid are summarized.

Kato, T., 1966: Physiological studies, on the bulbing and dormancy of onion plants. VIII. Relations between dormancy and organic constituents of bulbs. Changes in the metabolic activity of carbohydrates, N compounds and growth substances during storage were studied in relation to dormancy. Carbohydrates and N compounds in the outer leaf bases were broken down and translocated to the inner leaf ba...

Nikolaeva, M.; Daletskaia, T.; Poliakova, E., 1969: On the hormonal nature of deep dormancy of seeds. study of the role of beta-indoleacetic acid during the dormancy of seeds. Biokhimiia Immuniteta I Pokoia Rast: 06-215

Alvarez Rangel, R., 1984: Characterization of the mechanisms controlling dormancy and germination of seeds of Parkinsonia aculeata. I. Responses of seeds to treatments for breaking dormancy and their ecological implications. Puncturing the micropyle, dry heat (75 degrees C for 1 h) or acid scarification (H2SO4 for 35-40 min) removed seed hardness in this species. P. aculeata seeds are adapted to survive in dry and semidry conditions.

Roh, S.M.; Wilkins, H.F., 1977: The physiology of dormancy and maturity in bulbs of Lilium longiflorum Thunb. cv. Nellie White. IV. Dormancy and maturity - translocation studies in the double-nosed bulb. The dormancy factor, which could be measured by the speed of shoot emergence, was not translocated through the basal plate. Old (mother) and new (daughter) scales of late-harvested bulbs showed a similar level of dormancy. The maturity factor that...

Villiers, T.A., 1972: Cytological studies in dormancy. II. Pathological ageing changes during prolonged dormancy and recovery upon dormancy release. III. Changes during low temperature dormancy release. (II) Seeds of Fraxinus excelsior, which require chilling in order to break dormancy, were kept fully imbibed at 22 deg -25 deg C for more than 6 years without germinating. Similar seeds stored air-dry at the same temperatures were dead after 1 yea...

Reis, G.G. dos; Brune, A.; Rena, A.B., 1985: Studies on the dormancy of sucupira (Pterodon pubescens) seeds: treatments for overcoming dormancy. Untreated pale seeds germinated faster and reached a higher germination percentage than the dark form. Nicking the integument was the most effective treatment for increasing germination percentage and rate in both forms.

Istanbouli, A.N.ville, P., 1977: Dormancy study of olive (Olea europaea L.) seeds. Demonstration of embryonal dormancy. Comptes rendus hebdomadaires des seances Serie D Sciences naturelles: 7, 284 (24) 2503-2506

Takahashi, N., 1968: Mechanisms of dormancy in rice seeds. 1. Germination inhibitors as a factor inducing dormancy. An investigation into the factors which induce seed dormancy in rice is reported. The effects of O2 and temperature on endogenous germination inhibitors are discussed. The inhibitors, which diffuse from the outer membranes of the seed, are located...