Home > Symposium on Vegetable and Flower seed Production > QUARANTINE REGULATIONS AND NEW PROBLEMS CONCERNING SEED-TRANSMITTED VIRUSES AND VIROIDS

Articles

QUARANTINE REGULATIONS AND NEW PROBLEMS CONCERNING SEED-TRANSMITTED VIRUSES AND VIROIDS

Article number

111_15

Pages

115 – 122

Language

Abstract

The enforcement in EEC Member States of the Council Directive 77/93/ EEC and two amendments on protective measures against the introduction into Member States of organisms harmful to plants or plant products is expected during 1980. The points of the Directive dealing with seed-transmission of viruses and viroids are analyzed and discussed.

Recent progress in plant virus and viroid research raises new quarantine problems in regard to transmission through seed.
Some of these problems are analyzed, with attention focused on cryptic viruses, viroids and satellite RNA molecules.

In the conclusion, it is recommended that plant breeders collaborate with plant virologists to a greater extent than they do at present, to be sure that they do not contribute to the selection and spread of new diseases.

Publication

Symposium on Vegetable and Flower seed Production

Authors

O. Lovisolo

Keywords

Full text

https://doi.org/10.17660/ActaHortic.1981.111.15

Online Articles (40)

2. SOME ASPECTS OF SIB PRODUCTION IN F₁ CULTIVARS OF BRASSICA OLERACEA

T. Hodgkin

3. CORRELATION BETWEEN COLOUR OF TESTA AND VIGOUR OF SEEDS IN WRINKLED PEAS

E. Baumunk-Wende

4. BREEDING FOR FLOWER COLOUR IN PETUNIA HYBRIDA HORT

S.G. Kashikar | A.S. Khalatkar

5. SEED DORMANCY IN LETTUCE: INFLUENCE OF TEMPERATURE ON INDUCTION AND EXPRESSION OF SEED DORMANCY AND STUDIES ON THE INHERITANCE

A.H. Eenink

6. A NEW TECHNIQUE FOR TOMATO HYBRID SEED PRODUCTION: DIRECT HAND-POLLINATION OF MALE-FERTILE BS LINES.

A. Falavigna | M. Badino | G.P. Soressi | G. Bruzzone

7. EXPERIMENTAL MUTAGENESIS IN CAPSICUM ANNUUM: I. EFFECT OF DIFFERENT DOSES OF GAMMA RADIATIONS ON CAPSULE AND SEED PRODUCTION

M.M. Joshi | A.S. Khalatkar

8. SODIUM AZIDE INDUCED MUTATIONS FOR QUALITY SEEDS IN CAPSICUM ANNUUM L.

G.V. Umalkar | M.K. Vyawhare | R.M. Kashikar | S.G. Kashikar

9. GENOTYPE-ENVIRONMENT INTERACTION IN THE MULTIPLICATION OF BEAN SEED

L. Quagliotti | P. Belletti | P. Caruso | G. Incalcaterra

10. GENETIC VARIABILITY OF BEAN SEED IN RESISTANCE TO HEAT TREATMENT

A. Baldi | P. Belletti | L. Quagliotti

11. GAMETOCIDAL EFFECTS OF GIBBERELLIC ACID (GA₃, GA₄₊₇) ON COMMON ONION (ALLIUM CEPA L.)

M. Badino

12. A PROPOSAL ON PREDETERMINATION OF CROSSING ABILITY IN F₁ HYBRID SEED PLOT BY BIOCHEMICAL TECHNIQUE

M.L. Choomsai Anothai

13. SOME ASPECTS OF THE ROLE OF THE HONEYBEE IN ONION SEED PRODUCTION IN POLAND

H.W. Woyke

14. THE NATURE OF FLOWERING AND SEED MATURATION OF ONIONS AS A BASIS FOR MECHANICAL HARVESTING OF THE SEEDS

D. Globerson | A. Sharir | R. Eliasi

15. CONTROL OF DISEASES IN NEW ZEALAND BROAD BEAN SEED PRODUCTION CROPS

R.E. Gaunt | R.S.S. Liew

16. QUARANTINE REGULATIONS AND NEW PROBLEMS CONCERNING SEED-TRANSMITTED VIRUSES AND VIROIDS

O. Lovisolo

17. SEED-BORNE ALTERNARIA BRASSICICOLA: DETECTION BY MEANS OF SYMPTOMS ON SEEDLINGS

G. Vannacci

18. ENVIRONMENTAL AND CHEMICAL EFFECTS ON CELERY (APIUM GRAVEOLENS L.) SEED PRODUCTION

T.H. Thomas | Diane F. O'Toole

19. STIMULATION OF PEPPER SEED GERMINATION BY SOME CHEMICALS AND GROWTH REGULATORS

F. Macit

20. GERMINATION OF OSMOTIC CONDITIONED FREESIA HYBRIDA ‘SUPER’ SEEDS

J. Kepczynski

21. EFFECT OF DIFFERENT HORMONE TREATMENTS ON THE SEED PRODUCTION IN CASSIA ANGUSTIFOLIA

A.S. Khalatkar | Y.R. Bhargava

22. THE INFLUENCE OF FRUIT POSITION ON PROGENY PERFORMANCE IN THE TOMATO

S. Varis | R. A.T. George

23. ARE THE PLANT DENSITIES CURRENTLY USED FOR CARROT SEED PRODUCTION TOO LOW?

D. Gray

24. THE YIELD AND QUALITY OF CARROT AND CHICORY AS EFFECTED BY DESICCANT SPRAYS

M. Montanari | A. Lovato

25. THE VIABILITY OF CARROT AND CHICORY SEED AS AFFECTED BY DESICCANT SPRAYS

A. Lovato | M. Montanari

26. INFLUENCE OF ‘TAPROOT’ SIZE ON ‘SEED’ YIELD OF FLORENCE FENNEL (FOENICULUM VULGARE MILL. VAR. DULCE MILL.)

V.V. Bianco

27. A REVIEW OF THE EFFECTS OF MINERAL NUTRITION ON THE SEED YIELD AND QUALITY IN PHASEOLUS VULGARIS

M. Gavras | R. A.T. George

28. INFLUENCE OF IRRIGATION REGIME ON SEED YIELD OF PHASEOLUS VULGARIS L. IN SOUTHERN ITALY

P. Rubino | E. Tarantino

29. EFFECTS OF TIME OF SOWING AND WATER REGIME ON SEED YIELD OF BROAD BEANS

D. Linsalata | V.V. Bianco

30. INFLUENCE OF PLANT DENSITY ON SEED YIELD OF THREE CULTIVARS OF VICIA FABA L.

V.V. Bianco | V. Miccolis | G. Damato

31. PRODUCING ON THE SEED FROM ALLIUM PORRUM

M. Cirkova-Georgijevska | T. Tudzarov

32. VIGOR IN VEGETABLE SEEDS

Daniel J. Cantliffe

33. THE SIGNIFICANCE OF SEED COAT DAMAGE IN THE PRODUCTION OF HIGH QUALITY LEGUME SEEDS

Alison A. Powell | S. Matthews

34. MECHANICAL INJURY IN SEEDS

Karol W. Duczmal

35. HARVESTING DAMAGE IN PEA SEED AND ITS INFLUENCE ON VIGOUR

A.J. Biddle

36. THE EFFECT OF TIME OF HARVESTING ON SEED STORABILITY AND SUBSEQUENT PERFORMANCE

H.F. Chin

37. EFFECTS OF STORAGE ON THE VIABILITY OF TURNIP AND BROCCOLI RABS SEED

G. Lepori | L. Quagliotti

38. SEED IMPROVEMENT, PRODUCTION AND QUALITY OF VEGETABLE CROPS IN PENINSULAR MALAYSIA

T. Thai | C. Fong

39. VEGETABLES VARIETAL IMPROVEMENT AND PRODUCTION OF QUALITY SEED IN THAILAND

M.L. Choomsai Anothai

40. STUDIES ON THE QUALITY OF EGGPLANT SEED

Hr. Petrov | M. Doikova | D. Popova