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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
17/08/1999 |
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Data da última atualização: |
12/11/2014 |
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Autoria: |
ANDERSON, C. A.; LADIGES, Y. |
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Título: |
A comparison of three populationso of Eucalyptus obliqua L' herit. Growing on acid and calcareous soils in southern Victoria. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
Australian Journal of Botany, Victoria, v.26, n.1, p.93-109, 1978. |
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Idioma: |
Inglês |
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Conteúdo: |
In the Otways district, E.obliqua exhibits a wide edaphic tolerance; evidence is presented for the existence of ecotypes in this region. A comparison of three populations from acidic loam, neutral sand and alkaline sand soils showed significant differences in yield response when grown under glasshouse conditions. A tall open-forest population, naturally occurring on fertile acidic loams (pH 4.6-5.2), showed a marked reduction in yield, was severely chlorotic and developed red and necrotic patches on leaves when grown on calcareous sands of pH 6.5 and 8.0. Open-forest and low open-forest populations native to the sands of pH 6.5 and 8.0 respectively also developed some chlorosis, but maintained greater yields, particularly on the soil of pH 6.5. Chlorosis in all populations was correlated with decreased levels of chlorophylls a and b, and carotenoids; on soil of pH 8.0, all populations showed increases in Ca, K, Mg, Na, P, and the P/Fe ratio in leaf tissue. Populations showed differing contents of Fe in seedlings (but with no particular trends), and the low open-forest population developed a significantly low P/Fe ratio when grown on leached calcareous soil of pH 6.5. |
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Thesagro: |
Crescimento. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01658naa a2200145 a 4500
001 1303352
005 2014-11-12
008 1978 bl --- 0-- u #d
100 1 $aANDERSON, C. A.
245 $aA comparison of three populationso of Eucalyptus obliqua L' herit. Growing on acid and calcareous soils in southern Victoria.
260 $c1978
520 $aIn the Otways district, E.obliqua exhibits a wide edaphic tolerance; evidence is presented for the existence of ecotypes in this region. A comparison of three populations from acidic loam, neutral sand and alkaline sand soils showed significant differences in yield response when grown under glasshouse conditions. A tall open-forest population, naturally occurring on fertile acidic loams (pH 4.6-5.2), showed a marked reduction in yield, was severely chlorotic and developed red and necrotic patches on leaves when grown on calcareous sands of pH 6.5 and 8.0. Open-forest and low open-forest populations native to the sands of pH 6.5 and 8.0 respectively also developed some chlorosis, but maintained greater yields, particularly on the soil of pH 6.5. Chlorosis in all populations was correlated with decreased levels of chlorophylls a and b, and carotenoids; on soil of pH 8.0, all populations showed increases in Ca, K, Mg, Na, P, and the P/Fe ratio in leaf tissue. Populations showed differing contents of Fe in seedlings (but with no particular trends), and the low open-forest population developed a significantly low P/Fe ratio when grown on leached calcareous soil of pH 6.5.
650 $aCrescimento
700 1 $aLADIGES, Y.
773 $tAustralian Journal of Botany, Victoria$gv.26, n.1, p.93-109, 1978.
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Registro original: |
Embrapa Florestas (CNPF) |
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