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Articles

SEED TREATMENTS AGAINST DORMANCY IN OKRA (ABELMOSCHUS ESCULENTUS (L.) MOENCH).

Article number

362_16

Pages

133 – 140

Language

Abstract

Abelmoschus esculentus (L.) Moench shows a particular kind of seed dormancy, called delayed permeability, caused by the structure of the seed coat and particularly by the chalazal plug.

The classical treatments against dormancy are ineffective, while there is a direct relationship between the seed moisture content and delayed permeability, with variances between cultivars and moisture contents.

Different treatments of accelerated ageing, with many combination of temperature and time (20°C, 30°C, 40°C for 4, 8, 12 days), were tested to increase the seed moisture content.

With the analysis of regression two levels of treatments were pointed out to solve the dormancy in all the samples tested (no treatment, four days in the accelerated ageing chamber at 40°C and 100% RH).

An equation, based on the mean velocity of germination and the frequency of delayed permeability seeds, permits the determination of the adequate treatment for each sample.

Publication

International Symposium on Agrotechnics and Storage of Vegetable and Ornamental Seeds

Authors

E. Nada, S. Lotito, L. Quagliotti

Keywords

Full text

https://doi.org/10.17660/ActaHortic.1994.362.16

Online Articles (39)

2. VEGETABLE SEED PRODUCTION IN TURKEY

K. Abak | R. Yanmaz | S. Ellialtioglu | I. Demir | A. Günay

3. REPRODUCTIVE RESPONSE OF ONION SEED PLANTS TO PHOTOTHERMAL CONDITIONS

F. Branca | A. Ruggeri

4. SOWING DATE AND GA₃ IN ONION SEED PRODUCTION

A. Ruggeri | F. Branca

5. SEED YIELD OF TRANSPLANTED GLASSHOUSE-GROWN ONION (ALLIUM CEPA L.) PLANTLETS. I. PRELIMINARY FINDINGS (*)

V. Dellacecca | A. Miggiano | A.F.S. Lovato | S. Galletti

6. UMBEL POSITION ON THE MOTHER PLANT: “SEED” YIELD AND QUALITY OF SEVEN CULTIVARS OF FLORENCE FENNEL

V.V. Bianco | G. Damato | R. Defilippis

7. SOWING DATES, PLANT DENSITY AND ‘CROWN’ CUTTING ON YIELD AND QUALITY OF FLORENCE FENNEL “SEED”

V.V. Bianco | G. Damato | A. Girardi

8. FIRST RESULTS OF PLANT DENSITY AND NITROGEN RATE ON YIELD AND QUALITY OF FLORENCE FENNEL (FOENICULUM VULGARE MILL. VAR. AZORICUM THELL.) “SEEDS”.

G. Damato | V.A. Bianco | M. Laterza

9. TOPPING TIME, YIELD AND QUALITY OF FLORENCE FENNEL AND BASIL SEED

A. Elia | G. Damato | V.A. Bianco

10. GROWTH REGULATORS, DATES OF TREATMENTS, YIELD AND QUALITY OF BROAD BEAN (VICIA FABA L.) AND FLORENCE FENNEL (FOENICULUM VULGARE MILL. VAR. AZORICUM THELL.) “SEED”.

A. Elia | G. Damato

11. PLANT DENSITY AND SEED PRODUCTION OF TWO CULTIVARS OF CHICORY (CICHORIUM INTYBUS L.)

V.V. Bianco | G. Damato | G. Fanizza

12. TIME OF SOWING, PLANT DENSITY, WEED CONTROL, CULTIVARS AND SEED YIELD OF BORLOTTO BEAN

A. Elia | V.V. Bianco | G. Sarli

13. ENVIRONMENTAL EFFECTS ON FLOWERING AND SEED SETTING IN VICIA FABA EQUINA PERS.

L. Quagliotti | S. Bruno | S. Lotito | P. Belletti | E. Nada

14. SEED QUALITY OF WINTER MELON (CUCUMIS MELO L. VAR. INODORUS NAUD.) AS INFLUENCED BY THE POSITION OF FRUITS ON THE MOTHER PLANT

G. Incalcaterra | P. Caruso

15. NITROGEN FERTILIZATION OF SEED RADISH (RAPHANUS SATIVUS L.): EFFECTS ON YIELD AND N-CONTENT IN SEED, PLANT AND SOIL^(*)

A. Lovato | M. Montanari | A. Miggiano

16. DEVELOPMENT OF SEED QUALITY DURING SEED DEVELOPMENT IN OKRA

I. Demir

17. SEED TREATMENTS AGAINST DORMANCY IN OKRA (ABELMOSCHUS ESCULENTUS (L.) MOENCH).

E. Nada | S. Lotito | L. Quagliotti

18. PRODUCTION OF POTATO MICRO-TUBERS THROUGH IN VITRO CULTURE

P. Belletti | S. Lanteri | S. Lotito | F. Saracco

19. NON-DESTRUCTIVE SEED EVALUATION WITH IMPACT MEASUREMENTS AND X-RAY ANALYSIS

W.J. van der Burg | H. Jalink | R.A. van Zwol | J.W. Aartse | R.J. Bino

20. ETHYLENE AND PEA GERMINATION

L. Petruzzelli | P. Perrino | F. Harren

21. TEMPERATURES, INCUBATION PERIODS, OSMOTIC POTENTIALS AND RATE OF GERMINATION OF FLORENCE FENNEL “SEEDS” AT OPTIMAL AND CRITICAL TEMPERATURES

G. Damato | S. Vannella | R.J. Downs

22. TEMPERATURE, WASHING OF “SEEDS”, LIGHT AND HIGH TEMPERATURE DURATION ON GERMINATION RATE OF FLORENCE FENNEL “SEEDS”

G. Damato | R.J. Downs | S. Vannella

23. INFLUENCE OF TEMPERATURE AND SOIL WATER CAPACITY ON THE EMERGENCE OF ONION SEEDS

M. Kretschmer

24. EFFECT OF THERMIC TREATMENTS AND SEED MANIPULATION ON EMERGENCE OF DWARF POMEGRANATE (PUNICA GRANATUM L. ‘NANA’).

C. Cervelli

25. THERMAL REQUIREMENTS DURING THE GERMINATION STAGE IN SOME NEW ORNAMENTAL SPECIES

G. Magnani | M. Macchia | M. Mazzarri | G. Serra

26. THE EFFECT OF DIFFERENT PRIMING TREATMENTS ON REPARABILITY OF AGED EGGPLANT SEEDS

I. Demir | S. Ellialtioglu | R. Tipirdamaz

27. EFFECTS OF SEED OSMOCONDITIONING ON EMERGENCE CHARACTERISTICS OF THE TOMATO (LYCOPERSICON ESCULENTUM MILL.)

V. Cavallaro | G. Mauromicale | G. Di Vincenzo

28. EFFECTS OF SEED OSMOCONDITIONING ON EMERGENCE CHARACTERISTICS OF THE SUMMER SQUASH (CUCURBITA PEPO L.)

G. Mauromicale | V. Cavallaro | A. Ierna

29. EFFECTS OF PRE-SOWING PEG (POLYETHYLENE GLYCOL) TREATMENTS ON THE GERMINATION AND EMERGENCE RATE AND TIME OF CARROT SEEDS

R. Yanmaz

30. OSMOTIC PRIMING IN ECOTYPES OF CITRUS AURANTIUM L. SEEDS TO INCREASE GERMINATION RATE, SEED POLYEMBRYONY AND SEEDLING UNIFORMITY

G. Russo | P. Uggenti | G.B. Polignano

31. OSMOTIC PRIMING IN ECOTYPES OF CERATONIA SILIQUA L. SEEDS TO INCREASE GERMINATION RATE AND SEEDLING UNIFORMITY

G. Russo | P. Uggenti | G.B. Polignano

32. AGEING TESTS AS A BASIS FOR EVALUATING SEED QUALITY

S. Matthews

33. THE ROLE OF SEED SIZE AND THE CONTROLLED DETERIORATION TEST IN DETERMINING SEED QUALITY IN BRASSICAS

Alison A. Powell | S. Matthews

34. ELECTRICAL CONDUCTIVITY CHANGES IN DETERIORATED SUNFLOWER SEEDS

M. de PAULA | M. DARDER | M. TORRES | C.J. MARTINEZ-HONDUVILLA

35. EFFECT OF SEED STORAGE AND SEED SIZE ON GERMINATION, EMERGENCE AND BULBLET PRODUCTION OF AMARYLLIS BELLADONNA L.

U. Amico Roxas | G.V. Zizzo | S. Agnello | A. Sciortino | G. Iapichino

36. PRACTICAL METHODS FOR OVERCOMING HARDSEEDEDNESS IN SOME ORNAMENTAL ACACIA SPECIES

G. Magnani | M. Macchia | E. Moscheni | G. Serra

37. ARTIFICIAL SEED TECHNOLOGY IN THE ORNAMENTAL SPECIES LISIANTHUS AND GENISTA

B. Ruffoni | F. Massabò | A. Giovannini

38. SALINITY AND SEED GERMINATION OF SOME VEGETABLE CROPS

G. Cucci | A. De Caro | L. Ciciretti | B. Leoni

39. SEED DISINFECTION OF PEPPER (CAPSICUM ANNUUM L.) FROM ALTERNARIA NEES

F. Fiume