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| Articles
by
Panida Atiwetin |
Total Records (
1 ) for
Panida Atiwetin |
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Anut Chantiratikul
,
Panida Atiwetin
and
Piyanete Chantiratikul
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The feasibility of producing selenium-enriched water
lettuce (Pistia stratiotes L.) was studied by cultivating water
lettuce in Hoagland's solution containing 0, 20, 40, 60 and 80 mg Se from
sodium selenite/L. There were 4 replicates in each Se concentration. Each
replicate consisted of 30 plants of water lettuce. Three plants of water
lettuce in each replicate were sampled on day 0, 1, 2, 3 and 4 of the
experiment. The samples were washed with deionized water, separated for
leaves and roots and finally dried at 65 °C. Prior to Se determination,
leaf or root samples were pooled by replicate. The finding revealed that
Se concentrations in leaves and roots of water lettuce increased significantly
(p<0.05) with increasing Se concentration in Hoagland's solution and
day of cultivation. However, Se concentration in leaves was lower than
that of roots. Water lettuce cultivated in the solution containing 60
to 80 mg Se L-1 exhibited the yellow leaves and died in day
2 and 3. Therefore, the appropriate Se concentration and duration for
producing Se-enriched water lettuce were 20 to 40 mg Se L-1
and 2 to 3 days of cultivation. The leaves of water lettuce cultivated
in those conditions contained 11.14-13.50 and 21.06-29.55 mg Se kg-1,
respectively. |
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