Nitrogen fixation and seed yield of winged bean (Psophocarpus tetragonolobus (L.) DC) under various support systems
A field experiment was carried out to determine the effects of support systems (0, 1, and 2-m height) on nodulation, nitrogenase activity, accumulation and partitioning of total nitrogen (N) and seed yield of a local cultivar of winged bean (Psphocarpus tetragonolobus (L) DC) Plants grown with 2-m s...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Malaysian Society of Soil Science
1998
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/49552/ http://psasir.upm.edu.my/id/eprint/49552/1/Nitrogen%20fixation%20and%20seed%20yield%20of%20winged%20bean%20%28Psophocarpus%20tetragonolobus%20%28L.%29%20DC%29%20under%20various%20support%20systems.pdf |
| _version_ | 1848851299693494272 |
|---|---|
| author | Motior, M. R. Shamsuddin, Zulkifli Wan Mohamad, W. O. Wong, K. C. |
| author_facet | Motior, M. R. Shamsuddin, Zulkifli Wan Mohamad, W. O. Wong, K. C. |
| author_sort | Motior, M. R. |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | A field experiment was carried out to determine the effects of support systems (0, 1, and 2-m height) on nodulation, nitrogenase activity, accumulation and partitioning of total nitrogen (N) and seed yield of a local cultivar of winged bean (Psphocarpus tetragonolobus (L) DC) Plants grown with 2-m supports produced substantial nodule mass, the highest rate of nitrogen fixation, increased nitrogen accumulation of the plant, and seed yield compared to those grown with 2-m supports and unsupported plants Nitrogenase activities increased and reached a peak at the onset of flowering i.e. 70 days of growth (D70) but declined during the pod formation stage in plants grown with a support system. On the contrary, unsupported control plants recorded a peak nitrogenase activities 14 days before flowering The descending order of total plant nitrogen accumulation at D140 was plants with 2-m supports (6 30 g N plant-1) > those with 1-m supports (4.06 g N plant-1) > control plants (2.10 g N plant-1), reflecting the beneficial effect of support systems on N9 fixation as mentioned earlier Supported plants contributed significantly higher leaf N at the vegetative stage Consequently, seed N was also significantly higher than in unsupported plants. There was a seven-fold increase in seed yield for plants grown on 2-m supports compared with unsupported plants. The beneficial effects of08-Jan-2015 yield of winged bean are discussed. |
| first_indexed | 2025-11-15T10:19:59Z |
| format | Article |
| id | upm-49552 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:19:59Z |
| publishDate | 1998 |
| publisher | Malaysian Society of Soil Science |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-495522016-12-30T03:11:58Z http://psasir.upm.edu.my/id/eprint/49552/ Nitrogen fixation and seed yield of winged bean (Psophocarpus tetragonolobus (L.) DC) under various support systems Motior, M. R. Shamsuddin, Zulkifli Wan Mohamad, W. O. Wong, K. C. A field experiment was carried out to determine the effects of support systems (0, 1, and 2-m height) on nodulation, nitrogenase activity, accumulation and partitioning of total nitrogen (N) and seed yield of a local cultivar of winged bean (Psphocarpus tetragonolobus (L) DC) Plants grown with 2-m supports produced substantial nodule mass, the highest rate of nitrogen fixation, increased nitrogen accumulation of the plant, and seed yield compared to those grown with 2-m supports and unsupported plants Nitrogenase activities increased and reached a peak at the onset of flowering i.e. 70 days of growth (D70) but declined during the pod formation stage in plants grown with a support system. On the contrary, unsupported control plants recorded a peak nitrogenase activities 14 days before flowering The descending order of total plant nitrogen accumulation at D140 was plants with 2-m supports (6 30 g N plant-1) > those with 1-m supports (4.06 g N plant-1) > control plants (2.10 g N plant-1), reflecting the beneficial effect of support systems on N9 fixation as mentioned earlier Supported plants contributed significantly higher leaf N at the vegetative stage Consequently, seed N was also significantly higher than in unsupported plants. There was a seven-fold increase in seed yield for plants grown on 2-m supports compared with unsupported plants. The beneficial effects of08-Jan-2015 yield of winged bean are discussed. Malaysian Society of Soil Science 1998 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/49552/1/Nitrogen%20fixation%20and%20seed%20yield%20of%20winged%20bean%20%28Psophocarpus%20tetragonolobus%20%28L.%29%20DC%29%20under%20various%20support%20systems.pdf Motior, M. R. and Shamsuddin, Zulkifli and Wan Mohamad, W. O. and Wong, K. C. (1998) Nitrogen fixation and seed yield of winged bean (Psophocarpus tetragonolobus (L.) DC) under various support systems. Malaysian Journal of Soil Science, 2. pp. 59-73. ISSN 1394-7990 http://www.msss.com.my/mjss/abs02.htm |
| spellingShingle | Motior, M. R. Shamsuddin, Zulkifli Wan Mohamad, W. O. Wong, K. C. Nitrogen fixation and seed yield of winged bean (Psophocarpus tetragonolobus (L.) DC) under various support systems |
| title | Nitrogen fixation and seed yield of winged bean (Psophocarpus tetragonolobus (L.) DC) under various support systems |
| title_full | Nitrogen fixation and seed yield of winged bean (Psophocarpus tetragonolobus (L.) DC) under various support systems |
| title_fullStr | Nitrogen fixation and seed yield of winged bean (Psophocarpus tetragonolobus (L.) DC) under various support systems |
| title_full_unstemmed | Nitrogen fixation and seed yield of winged bean (Psophocarpus tetragonolobus (L.) DC) under various support systems |
| title_short | Nitrogen fixation and seed yield of winged bean (Psophocarpus tetragonolobus (L.) DC) under various support systems |
| title_sort | nitrogen fixation and seed yield of winged bean (psophocarpus tetragonolobus (l.) dc) under various support systems |
| url | http://psasir.upm.edu.my/id/eprint/49552/ http://psasir.upm.edu.my/id/eprint/49552/ http://psasir.upm.edu.my/id/eprint/49552/1/Nitrogen%20fixation%20and%20seed%20yield%20of%20winged%20bean%20%28Psophocarpus%20tetragonolobus%20%28L.%29%20DC%29%20under%20various%20support%20systems.pdf |