PASTIC Dspace Repository

GROWTH RESPONSE AND LEAF COMPOSITION OF SELECTED EUCALYPTUS SPECIES EXPOSED TO SALINE AND HYPOXIC STRESS

Show simple item record

dc.contributor.author M. Aslam
dc.contributor.author M. Nasim
dc.contributor.author R.H. Qureshi
dc.contributor.author S. Nawaz
dc.contributor.author J- Akhtar
dc.contributor.author Z. Ahmad
dc.date.accessioned 2023-03-14T03:23:32Z
dc.date.available 2023-03-14T03:23:32Z
dc.date.issued 2002-02-06
dc.identifier.citation Aslam, M., Nasim, M., Qureshi, R. H., Nawaz, S., Akhtar, J., & Ahmad, Z. (2002). Growth response and leaf composition of selected eucalyptus species exposed to saline and hypoxic stress. Pakistan Journal of Soil Science (Pakistan). en_US
dc.identifier.issn 1019-729X
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/18741
dc.description.abstract A solution culture study on selected Eucalyptus species (E. occidentalis, E. tereticornis, E. camaldulensls-var. Silverton, and E. camaldulensis-Local) was conducted under saline and hypoxic conditions to determine the effect of treatments on growth and leaf composition. The treatments were non-saline, aerobic (control), saline aerobic (ISO mol m ! NaCl) and saline + hypoxic. Solutions in case of nonsaline aerobic and saline aerobic were aerated continuously while hypoxia was induced by surface sealing (oxygen concentration 2-3 ppm). Twenty five days after salinity I hypoxic stress, plants were harvested. Salinity negatively affected all the growth parameters (plant height, stem thickness, and root and shoot fresh weights) and the effect was further aggravated when it was associated with water logging. Among the species E. camaldulensis-Local and E. camaldulensis-var. Silverton were found better under saline conditions and E. camaldulensis-Local under saline hypoxic conditions. Young leaves of all the species had lower concentrations of Na and Cl as compared to old leaves, and concentrations of Na and Cl in the leaves of both categories were the highest under saline hypoxic conditions followed by saline treatment. Potassium:sodium ratio was better in the young leaves of alt the species compared to fully exposed old leaves, and the ratio was better also under favourable conditions. From amongst the species, E. camaldulensis-Local had low Na and better K:Na ratio in its leaves. Mean rate of growth measured as coefficient of shoot elongation (CSE) was the lowest in E. tereticornis whereas, all the other species had almost similar values of CSE. Nevertheless, the absolute mean shoot fresh weight was the highest and significantly superior to all the species in E. camaldulensis-Local. en_US
dc.language.iso en en_US
dc.publisher Faisalabad: Institute of Soil & Environmental Sciences University of Agriculture, Faisalabad. Pakistan en_US
dc.title GROWTH RESPONSE AND LEAF COMPOSITION OF SELECTED EUCALYPTUS SPECIES EXPOSED TO SALINE AND HYPOXIC STRESS en_US
dc.type Article en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search DSpace


Advanced Search

Browse

My Account