In vitro Propagation and Isozyme Polymorphism of the Medicinal Plant Hypericum brasiliense |
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Authors: | IN Abreu MTA Azevedo VM Solferini P Mazzafera |
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Institution: | (1) Department of Botany, University of Agriculture, Faisalabad, Pakistan;(2) Nuclear Institute for Agriculture and Biology, Faisalabad, Pakistan;(3) College of Agriculture and Life Science, Sunchon National University, Sunchon, 540-742, South Korea |
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Abstract: | Responses of 20 d-old plants of two Brassica napus L. cultivars Dunkeld and Cyclon to NaCl salinized soil electrical conductivity 2.4 (control), 4.0, 8.0 or 12.0 dS m−1] were examined. The salt tolerant line Dunkeld had significantly higher fresh and dry masses of shoots, and seed yield than
salt sensitive line Cyclon in all salinities. The effect of salt stress on reduction in total leaf soluble sugars was markedly
greater in Dunkeld as compared to that in Cyclon. No effect of salt stress was observed on leaf soluble proteins but there
was a slight increase in total free amino acids of both cultivars. Leaf proline content increased markedly in both cultivars
and Dunkeld had greater proline content than Cyclon at all salinities. Salt stress had no significant effect on seed oil content
and erucic acid content of seed oil, however, content of glucosinolates in the seed meal increased and Cyclon had greater
content of glucosinolates than Dunkeld.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | Brassica napus proline soluble proteins soluble sugars |
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