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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
25/08/1995 |
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Data da última atualização: |
13/09/1995 |
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Autoria: |
YOUNG, R. H. |
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Afiliação: |
Agricultural Research Service, U.S. Department of Agriculture, 2120 Camden Road, Orlando, FL 32803, USA. |
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Título: |
The effect of rootstocks on citrus cold hardiness. |
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Ano de publicação: |
1977 |
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Fonte/Imprenta: |
Reprinted from proc. Int. Soc. Citriculture, v.2, p.518-522, 1977. |
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Idioma: |
Inglês |
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Conteúdo: |
Citrus tree cold hardiness is influenced by rootstocks. In cool climates, trifoliate orange (Poncirus trifolata Raf.) and Yuzu (C. lchangensis X C. reticula) are very hardy rootstocks, but trifoliate orange is less hardy in mild climates. Cleopatra mandarin (C. reticulata Blanco) and sour orange (C. aurantium L.) are generally hardy in both cool and mild climated, while sweet orange (C. sinensis (L.) Osbeck) and grapefruit (C. paradisi Macf.) are intermediate in hardiness and rough lemon (C. limon (L.) Burm f.) is tender. Many other rootstocks have been evaluated but do not offer any particular advantage over commercial rootstocks. Rootstock effects on hardiness of young trees are not as pronounced as those on older, mature trees because younger trees have greater vigor and smaller size. Rootstocks affect recovery subsequent to injury and often more tender stocks, such as rough lemon, recover faster than hardier stocks because of rapid regrowth. The mechanism of rootstock action remains speculative, but cool soil and air temperatures are climatic factors influencing the hardening process. |
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Thesaurus Nal: |
dormancy; temperature. |
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Categoria do assunto: |
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Marc: |
LEADER 01497naa a2200145 a 4500
001 1647052
005 1995-09-13
008 1977 bl --- 0-- u #d
100 1 $aYOUNG, R. H.
245 $aThe effect of rootstocks on citrus cold hardiness.
260 $c1977
520 $aCitrus tree cold hardiness is influenced by rootstocks. In cool climates, trifoliate orange (Poncirus trifolata Raf.) and Yuzu (C. lchangensis X C. reticula) are very hardy rootstocks, but trifoliate orange is less hardy in mild climates. Cleopatra mandarin (C. reticulata Blanco) and sour orange (C. aurantium L.) are generally hardy in both cool and mild climated, while sweet orange (C. sinensis (L.) Osbeck) and grapefruit (C. paradisi Macf.) are intermediate in hardiness and rough lemon (C. limon (L.) Burm f.) is tender. Many other rootstocks have been evaluated but do not offer any particular advantage over commercial rootstocks. Rootstock effects on hardiness of young trees are not as pronounced as those on older, mature trees because younger trees have greater vigor and smaller size. Rootstocks affect recovery subsequent to injury and often more tender stocks, such as rough lemon, recover faster than hardier stocks because of rapid regrowth. The mechanism of rootstock action remains speculative, but cool soil and air temperatures are climatic factors influencing the hardening process.
650 $adormancy
650 $atemperature
773 $tReprinted from proc. Int. Soc. Citriculture$gv.2, p.518-522, 1977.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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