Effect of NaCl on emergence and growth of a range of provenances of Eucalyptus citriodora, Eucalyptus populnea, Eucalyptus camaldulensis and Acacia salicina

Madsen, P.A.

doi:10.1016/j.foreco.2006.02.044

Cited by 21 publications

(15 citation statements)

References 7 publications

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“…High salinity has been reported to be one of the major constrains for tailing revegetation in many tailing impoundments [6], especially in Queensland [30,31]. Thus, knowledge on the dynamics of salinity in tailings is of primary importance for tailing revegetation.…”

Section: Discussionmentioning

confidence: 99%

Dynamics in leachate chemistry of Cu-Au tailings in response to biochar and woodchip amendments: a column leaching study

You

Huang

et al. 2013

Environ Sci Eur

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Background: Phytostabilization has been advocated as a promising approach to reduce mine tailings' adverse effects to surrounding environment. With many years of efforts in both laboratory and field trials, organic amendments are found to be essential in tailing revegetation. Yet, the associate geochemical dynamics caused by different amendments has rarely been examined. As reactive minerals are usually rich in tailings, geochemical changes induced by amendments would influence seepage management and revegetation strategies. The present study aimed to investigate geochemical dynamics in Cu-Au tailing leachate, in response to amendments with biochar produced from hardwood timber at high charring temperature or woodchips of mixed native tree species in a column leaching experiment under laboratory conditions. Results: Results showed that the Cu-Au tailings tested in this study were relatively stable after natural weathering, with little resilience of peak salinity, stable pH and low levels of metals in leachate against the six cycles of leaching over 20 weeks. In comparison with the control without any amendments, biochar treatment did not cause any substantial changes in most examined properties of leachate, except for the reduction in dissolved organic C and NO 2

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Section: Discussionmentioning

confidence: 99%

Dynamics in leachate chemistry of Cu-Au tailings in response to biochar and woodchip amendments: a column leaching study

You

Huang

et al. 2013

Environ Sci Eur

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“…Most studies dealing with salt tolerance showed that NaCl applications can have a very negative impact on tree growth for Eucalyptus species but the amounts of NaCl in the rooting medium in those studies were very large (e.g. Rawat and Banerjee, 1998;Niknam and McComb, 2000;Archibald et al, 2006;Madsen and Mulligan, 2006). However, low levels of NaCl in pot culture increased total biomass accumulation and stimulated photosynthetic carbon assimilation for E. camaldulensis and Dalbergia sissoo Roxb.…”

Section: Substitution Of K By Na In Tree Physiologymentioning

confidence: 99%

A positive growth response to NaCl applications in Eucalyptus plantations established on K-deficient soils

Almeida

Laclau

Gonçalves³

et al. 2010

Forest Ecology and Management

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“…In previous reports, various concentrations of salt water have been applied to non-transgenic seedlings of E. camaldulensis in greenhouse salinity tests. The non-transgenic E. camaldulensis seedlings did not show wilting even when irrigated with 400 mM NaCl (Madsen and Mulligan 2006;Blake 1981) but began to show wilting when the concentration of NaCl was increased to 460 mM (Thomson et al 1987). There are some reports that the salt tolerance of seedlings is related to geographical and genetic factors (Marcar et al 2002;Thomson et al 1987).…”

mentioning

confidence: 99%

Establishment of the evaluation system of salt tolerance on transgenic woody plants in the special netted-house

Kikuchi

Matsunaga

et al. 2009

Plant Biotechnology

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Salinity is regarded as a major factor impacting the growth of plants such as trees. Transgenic technology is considered an effective approach to minimizing salt damage by enhancing a plant's salt tolerance. Currently, most of the research on transgenic woody plants is still limited to the laboratory level in vitro and in growth chambers. However, the confined laboratory evaluation of salt tolerance condition yields minimal information since various factors that significantly impact growth, such as weather and season, do not come into play. Field level evaluation of salt tolerance is necessary but is limited in Japan. Transgenic plants should be evaluated in semi-confinement before they are moved to open fields. Therefore, an effective evaluation method for salt tolerance in woody plants is needed in semi-confinement. To evaluate the salt tolerance of transgenic Eucalyptus under semi-confined conditions, we initially developed a new evaluation method using non-transgenic E. camaldulensis. The duration of salt treatment was determined to be the point in time when half of the plants started to exhibit wilting. Additionally, the plants were continuously irrigated with fresh water as a final procedure. With the evaluation system in place, the salt tolerance of transgenic E. globulus containing the choline oxidase (codA) gene was measured. The transgenic plants showed higher survival rates than the non-transgenic plants. This result indicated that the salt tolerance of transgenic E. globulus was enhanced by the introduced codA gene and also established that the new evaluation system is valuable for testing transgenic plants in semi-confinement and will contribute to an increase in the useful applications of transgenic plants.

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Effect of NaCl on emergence and growth of a range of provenances of Eucalyptus citriodora, Eucalyptus populnea, Eucalyptus camaldulensis and Acacia salicina

Cited by 21 publications

References 7 publications

Dynamics in leachate chemistry of Cu-Au tailings in response to biochar and woodchip amendments: a column leaching study

Dynamics in leachate chemistry of Cu-Au tailings in response to biochar and woodchip amendments: a column leaching study

A positive growth response to NaCl applications in Eucalyptus plantations established on K-deficient soils

Establishment of the evaluation system of salt tolerance on transgenic woody plants in the special netted-house

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