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Dry Matter and Nitrogen Accumulation and Partitioning in Field Grown Winged Bean

Published online by Cambridge University Press:  03 October 2008

R. R. Weil  and
G. S. Belmont
R. R. Weil
Affiliation:
Department of Agronomy, University of Maryland, College Park, MD 20742, USA.
G. S. Belmont
Affiliation:
Department of Agronomy, University of Maryland, College Park, MD 20742, USA.
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Summary

Growth and the partitioning of dry matter and nitrogen were studied in winged bean ‘SLS-40’ grown with single stake supports at two sites in Sri Lanka. Plant parts (leaves, petioles, stems, roots, nodules, flowers, green pods, mature seeds, and mature pod-walls) were collected periodically, if present, for up to 32 weeks after emergence. Slow growth up to the seventh week was followed by rapid growth (2.8 g plant−1 day−1) for the next 15–17 weeks. Little leaf senescence was observed and the nitrogen content of the leaf tissue remained close to 45 mg N g−1 throughout growth. The rate of nitrogen accumulation was 2.3–2.7 kg N ha−1 day−1 between weeks 13 and 32. The final accumulation of nitrogen in the above ground material was 280 to 312 kg N ha−1, only 34% of that being in the mature seed. The harvest index for dry matter was 17.5–20% and the dry seed yield almost 2 t ha−1.

Type
Research Article
Information
Experimental Agriculture , Volume 27 , Issue 3 , July 1991 , pp. 323 - 328
Copyright
Copyright © Cambridge University Press 1991

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References

REFERENCES

Bremner, J. M. & Mulvaney, C. S. (1982). Nitrogen —total. In Methods of Soil Analysis Part 2. Second edition (Ed. by Page, A. L.). Agronomy 9. Madison, WI, USA: American Society of Agronomy.Google Scholar
Eagleton, G. E., Khan, T. N. & Erskine, W. (1985). Winged bean (Psophocarpus telragonolobus (L.) DC.). In Grain Legume Crops, 624–657 (Eds Summerfield, R. J. and Roberts, E. H.). London: Collins.Google Scholar
Gifford, Roger, M., Thorne, J. H., Hitz, W. O. & Giaquinta, R. T. (1984). Crop productivity and photoassimilate partitioning. Science 225:801–807.CrossRefGoogle ScholarPubMed
Gunasena, H. P. M. & Gunathilake, H. A. J. (1982). Effect of support systems on the seed yield of winged bean varieties (Psophocarpus tetragonolobus (L.) DC.). Journal of the National Agricultural Society of Ceylon 19:133–138.Google Scholar
Holdebaum, J. F., Decker, A. M., Meisinge, J. J., Mulford, F. R. & Vough, L. R. (1990). Fall-seeded legume cover crops for no-tillage corn in the Humid East. Agronomy Journal 82:117–124.CrossRefGoogle Scholar
Hymowitz, T. & Boyd, J. (1977). Origin, ethnobotany and agricultural potential of the winged bean Psophocarpus tetragonolobus. Economic Botany 31:180–188.CrossRefGoogle Scholar
Khan, T. N. (1982). Winged bean production in the tropics. Plant Production and Protection Paper No.38. Rome: Food and Agriculture Organisation of the United Nations.Google Scholar
NAS (1981). The Winged Bean a High-Protein Cropforthe Tropics. (Second edition.) Report. Washington, DC: National Academy of Sciences.Google Scholar
Reddy, K. C., Soffers, A. R. & Prine, G. M. (1986). Tropical legumes for green manure. I. Nitrogen production and the effects on succeeding crop yields. Agronomy Journal 78:1–4.CrossRefGoogle Scholar
Shamsuddin, Z. & Zakaria, A. (1978). Effect of lime and inoculum on nodulation and growth of Psophocarpus tetragonolobus and Arachis hypogaea. In The Winged Bean, 215–219. Los Banos, Philippines: Philippines Council on Agriculture and Resources Research.Google Scholar
Stephenson, R. A. (1978). Field studies on winged bean growth and yield. In The Winged Bean, 191–196. Los Banos, Philippines: Philippines Council on Agriculture and Resources Research.Google Scholar
Weil, R. & Khalil, N. (1986). Salinity tolerance of winged bean as compared to that of soyabean. Agronomy Journal 78:67–70.CrossRefGoogle Scholar
Weil, R. and Samaranayake, A. (1991). Effects of winged bean on a following maize crop. Experimental Agriculture 27:329–338.CrossRefGoogle Scholar