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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
30/04/1997 |
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Data da última atualização: |
30/04/1997 |
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Autoria: |
NORMAN, G. G. |
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Afiliação: |
Citrus Budwood Certification Office, Winter Haven, Florida. |
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Título: |
Florida state plant board program for virus-free budwood |
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Ano de publicação: |
1959 |
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Fonte/Imprenta: |
Riverside, California: University of California, 1959 |
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Páginas: |
p.237-242 |
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Idioma: |
Inglês |
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Notas: |
In: CONFERENCE ON CITRUS VIRUS DISEASES, 1957, Riverside, California. Proceedings... Riverside, California: University of California, 1959. |
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Conteúdo: |
If the candidate trees in the Florida program are a representative cross section of the State's citrus trees, and if the indexing of the Florida program is a reasonably reliable measurement of the four viruses, tristeza (5.5 per cent), psorosis (6.7 per cent), xyloporosis (72.3 per cent), and exocortis (40 per cent), these total 124.5 per cent and reflect the fact that many of the best trees obtainable in the largest citrus. Florida's answer to the is its citrus budwood program. Working against a general high level of virus incidence, in five years it has given the State 150,005 sources of psorosis-free budwood and 46,744 sources of psorosis-free and xyloporosis-free budwood of commercialy important varieties. The program will continue to select, test, than2,700 nucellar seedlings now under observation; to select, test, and compare some 400 seedling seed-source trees now under observation; and eventually to define, stabilize, and standardize the best of all these, so far as this is possible. |
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Palavras-Chave: |
Citros; Citrus sp; Congress; Congresso; Disease; Doencas; Exocortis; Grapefruit; Psorosis; Tristeza; Xiloporosis. |
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Thesagro: |
Pomelo; Vírus. |
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Thesaurus Nal: |
Citrus. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01869naa a2200313 a 4500
001 1644709
005 1997-04-30
008 1959 bl uuuu u00u1 u #d
100 1 $aNORMAN, G. G.
245 $aFlorida state plant board program for virus-free budwood
260 $c1959
300 $ap.237-242
500 $aIn: CONFERENCE ON CITRUS VIRUS DISEASES, 1957, Riverside, California. Proceedings... Riverside, California: University of California, 1959.
520 $aIf the candidate trees in the Florida program are a representative cross section of the State's citrus trees, and if the indexing of the Florida program is a reasonably reliable measurement of the four viruses, tristeza (5.5 per cent), psorosis (6.7 per cent), xyloporosis (72.3 per cent), and exocortis (40 per cent), these total 124.5 per cent and reflect the fact that many of the best trees obtainable in the largest citrus. Florida's answer to the is its citrus budwood program. Working against a general high level of virus incidence, in five years it has given the State 150,005 sources of psorosis-free budwood and 46,744 sources of psorosis-free and xyloporosis-free budwood of commercialy important varieties. The program will continue to select, test, than2,700 nucellar seedlings now under observation; to select, test, and compare some 400 seedling seed-source trees now under observation; and eventually to define, stabilize, and standardize the best of all these, so far as this is possible.
650 $aCitrus
650 $aPomelo
650 $aVírus
653 $aCitros
653 $aCitrus sp
653 $aCongress
653 $aCongresso
653 $aDisease
653 $aDoencas
653 $aExocortis
653 $aGrapefruit
653 $aPsorosis
653 $aTristeza
653 $aXiloporosis
773 $tRiverside, California: University of California, 1959
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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