Photosynthetic quotient relationship to inorganic nitrogen of rivers in Trengganu
Photosynthetic quotient (P. Q) values with depth of rivers in Trengganu were found to be lowered by high levels of indigenous ammonium nitrogen, ranging from 1.2 -0.8, contrary to temperate conditions where high levels of nitrate increase the P. Q values from 1.5 to 2.0. This is attributed to the...
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1983
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my.upm.eprints.22132013-05-27T06:59:35Z http://psasir.upm.edu.my/id/eprint/2213/ Photosynthetic quotient relationship to inorganic nitrogen of rivers in Trengganu Shamsuddin, Lokman Photosynthetic quotient (P. Q) values with depth of rivers in Trengganu were found to be lowered by high levels of indigenous ammonium nitrogen, ranging from 1.2 -0.8, contrary to temperate conditions where high levels of nitrate increase the P. Q values from 1.5 to 2.0. This is attributed to the fact that nitrate, in lieu of ammonia, produces two extra molecules of oxygen per atom of nitrate nitrogen assimilated, culminating in higher P. Q values. Nevertheless, the present findings tally well with that of marine phytoplankton (ie. P.Q is 1.2) when ammonia is the prime source of nitrogen. 1983 Article NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/2213/1/Photosynthetic_quotient_relationship_to_inorganic_nitrogen_of_rivers.pdf Shamsuddin, Lokman (1983) Photosynthetic quotient relationship to inorganic nitrogen of rivers in Trengganu. Pertanika, 6 (1). pp. 78-82. English |
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Universiti Putra Malaysia |
| building |
UPM Library |
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Institutional Repository |
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Asia |
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Malaysia |
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Universiti Putra Malaysia |
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http://psasir.upm.edu.my/ |
| language |
English English |
| description |
Photosynthetic quotient (P. Q) values with depth of rivers in Trengganu were found to be lowered
by high levels of indigenous ammonium nitrogen, ranging from 1.2 -0.8, contrary to temperate conditions
where high levels of nitrate increase the P. Q values from 1.5 to 2.0. This is attributed to the fact that
nitrate, in lieu of ammonia, produces two extra molecules of oxygen per atom of nitrate nitrogen
assimilated, culminating in higher P. Q values. Nevertheless, the present findings tally well with that of
marine phytoplankton (ie. P.Q is 1.2) when ammonia is the prime source of nitrogen. |
| format |
Article |
| author |
Shamsuddin, Lokman |
| spellingShingle |
Shamsuddin, Lokman Photosynthetic quotient relationship to inorganic nitrogen of rivers in Trengganu |
| author_facet |
Shamsuddin, Lokman |
| author_sort |
Shamsuddin, Lokman |
| title |
Photosynthetic quotient relationship to inorganic nitrogen of rivers in Trengganu |
| title_short |
Photosynthetic quotient relationship to inorganic nitrogen of rivers in Trengganu |
| title_full |
Photosynthetic quotient relationship to inorganic nitrogen of rivers in Trengganu |
| title_fullStr |
Photosynthetic quotient relationship to inorganic nitrogen of rivers in Trengganu |
| title_full_unstemmed |
Photosynthetic quotient relationship to inorganic nitrogen of rivers in Trengganu |
| title_sort |
photosynthetic quotient relationship to inorganic nitrogen of rivers in trengganu |
| publishDate |
1983 |
| url |
http://psasir.upm.edu.my/id/eprint/2213/1/Photosynthetic_quotient_relationship_to_inorganic_nitrogen_of_rivers.pdf http://psasir.upm.edu.my/id/eprint/2213/ |
| _version_ |
1643822252685262848 |
| score |
13.251813 |