The Citrus Variety Improvement Program in Spain
Virus and viruslike diseases are the most serious threats facing the Spanish citrus industry today. Tristeza in 1972 affected 82,000 hectares of citrus (Guardiola, 1974), and is now the most dangerous citrus disease in Spain. Because of tristeza, sour orange can no longer be recommended as a rootsto...
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| Format: | conferenceObject |
| Language: | Inglés |
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iocv
2022
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| Online Access: | http://hdl.handle.net/20.500.11939/7869 https://iocv.ucr.edu/sites/g/files/rcwecm4696/files/2020-06/7th198_203.pdf |
| _version_ | 1855032687101739008 |
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| author | Navarro, Luis |
| author2 | Calavan, E. C. |
| author_browse | Calavan, E. C. Navarro, Luis |
| author_facet | Calavan, E. C. Navarro, Luis |
| author_sort | Navarro, Luis |
| collection | ReDivia |
| description | Virus and viruslike diseases are the most serious threats facing the Spanish citrus industry today. Tristeza in 1972 affected 82,000 hectares of citrus (Guardiola, 1974), and is now the most dangerous citrus disease in Spain. Because of tristeza, sour orange can no longer be recommended as a rootstock and such tristeza tolerant stocks as citranges and Cleopatra mandarin are being substituted. However, since nearly all trees in Spain may have exocortis (Planes et al., 1968) the use of citranges may lead to another serious problem because of their susceptibility to exocortis. Xyloporosis (cachexia) is widely distributed in Spain (Planes et al., 1973) and its presence may diminish the effectiveness of Cleopatra mandarin as a rootstock. Psorosis and psorosis-related viruses are present in much of our citrus and presumably add to decline and stunting of trees, thereby increasing economic loss. Similarly, impietratura is present in several varieties and is an important factor in diminishing. |
| format | conferenceObject |
| id | ReDivia7869 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | iocv |
| publisherStr | iocv |
| record_format | dspace |
| spelling | ReDivia78692025-04-25T14:52:57Z The Citrus Variety Improvement Program in Spain Navarro, Luis Calavan, E. C. Improvement programs Nucellar programs Shoot-tip grafting in vitro Exocortis H20 Plant diseases F30 Plant genetics and breeding U30 Research methods F63 Plant physiology - Reproduction Citrus Virus free plants Tristeza of citrus Thermotherapy In vitro Virus and viruslike diseases are the most serious threats facing the Spanish citrus industry today. Tristeza in 1972 affected 82,000 hectares of citrus (Guardiola, 1974), and is now the most dangerous citrus disease in Spain. Because of tristeza, sour orange can no longer be recommended as a rootstock and such tristeza tolerant stocks as citranges and Cleopatra mandarin are being substituted. However, since nearly all trees in Spain may have exocortis (Planes et al., 1968) the use of citranges may lead to another serious problem because of their susceptibility to exocortis. Xyloporosis (cachexia) is widely distributed in Spain (Planes et al., 1973) and its presence may diminish the effectiveness of Cleopatra mandarin as a rootstock. Psorosis and psorosis-related viruses are present in much of our citrus and presumably add to decline and stunting of trees, thereby increasing economic loss. Similarly, impietratura is present in several varieties and is an important factor in diminishing. 2022-01-21T18:01:34Z 2022-01-21T18:01:34Z 1976 conferenceObject Navarro, L. (1976). The Citrus Varity Improvement Program in Spain. Proceedings of the Seventh Conference of the IOCV, 198-203. 2313-5123 http://hdl.handle.net/20.500.11939/7869 https://iocv.ucr.edu/sites/g/files/rcwecm4696/files/2020-06/7th198_203.pdf en 1975-09-29 Seventeenth Conference of the International Organization of Citrus Virologists Athens, Greece Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess iocv electronico |
| spellingShingle | Improvement programs Nucellar programs Shoot-tip grafting in vitro Exocortis H20 Plant diseases F30 Plant genetics and breeding U30 Research methods F63 Plant physiology - Reproduction Citrus Virus free plants Tristeza of citrus Thermotherapy In vitro Navarro, Luis The Citrus Variety Improvement Program in Spain |
| title | The Citrus Variety Improvement Program in Spain |
| title_full | The Citrus Variety Improvement Program in Spain |
| title_fullStr | The Citrus Variety Improvement Program in Spain |
| title_full_unstemmed | The Citrus Variety Improvement Program in Spain |
| title_short | The Citrus Variety Improvement Program in Spain |
| title_sort | citrus variety improvement program in spain |
| topic | Improvement programs Nucellar programs Shoot-tip grafting in vitro Exocortis H20 Plant diseases F30 Plant genetics and breeding U30 Research methods F63 Plant physiology - Reproduction Citrus Virus free plants Tristeza of citrus Thermotherapy In vitro |
| url | http://hdl.handle.net/20.500.11939/7869 https://iocv.ucr.edu/sites/g/files/rcwecm4696/files/2020-06/7th198_203.pdf |
| work_keys_str_mv | AT navarroluis thecitrusvarietyimprovementprograminspain AT navarroluis citrusvarietyimprovementprograminspain |