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Studies on White Yam (Dioscorea rotundata) I. Growth Analysis

Published online by Cambridge University Press:  03 October 2008

R. A. Sobulo
R. A. Sobulo
Affiliation:
Ministry of Agriculture and Natural Resources, Western State, Nigeria
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Summary

The growth of two varieties of white yam was analysed from planting in December to harvest in September. Four stages were recognized, viz.: dormancy, rapid growth of vine and root, rapid tuber development accompanied by leaf senescence and tuber maturity followed by reduction in tuber weight. The period of rapid growth coincident with maximum demand for nutrients was early June, suggesting that fertilizer should be applied in mid-May so that it is available in June.

Information

Type
Research Article
Information
Experimental Agriculture , Volume 8 , Issue 2 , April 1972, pp. 99 - 106
Copyright
Copyright © Cambridge University Press 1972

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References

REFERENCES

Amon, B. O. E. (1960). Agric. News Letter, Min. Agric. and Natural Resources, Western Region, Nigeria.Google Scholar
Baker, E. F. I. (1962–1964). Annual Report, Min. Agric. and Natural Resources, Western Region, Nigeria.Google Scholar
Blackman, G. E. & Black, J. N. (1959). Ann. Bot. 23, 89.CrossRefGoogle Scholar
Bromfield, A. R. (1967). End of Tour Rep., Min. Agric. and Natural Resources, Western State, Nigeria.Google Scholar
Brown, H. D. (1931). Trop. Agric., Trin. 8, 321.Google Scholar
Campbell, J. S., Chukuwueke, V. O., Teriba, F. A. & Ho-a-Shu, V. H. S. (1962). Emp. J. Expl Agric. 30, 232.Google Scholar
Chapman, T. (1965). Trop. Agric. Trin. 42, 145.Google Scholar
Coursey, D. G. (1967). Yams. London: Longmans, Green.Google Scholar
Ferguson, T. V. & Haynes, P. H. (1970). Proc. 2nd. int. Symp. Trop. Root. Crops, Hawaii 1, 93.Google Scholar
Gooding, E. G. B. & Hoad, R. M. (1967). Proc. 1st int. Symp. Trop. Root Crops, Trinidad 1, 137.Google Scholar
Irving, H. (1956). Trop. Agric., Trin. 33, 67.Google Scholar
Njoku, E. (1963). J. West Afric. Sci. Ass. 8, 29.Google Scholar
Vernon, A. J. & Allison, J. C. S. (1963). Nature, Lond. 200, 814.CrossRefGoogle Scholar
Vine, H. (1953). Emp. J. Expl Agric. 21, 65.Google Scholar
Waitt, A. W. (1961). Review of Yam Research in Nigeria 1920–1961. Fed. Dep. of Agric. Res. Memo, 31.Google Scholar
Waitt, A. W. (1963). Field Crop Abst. 16, 145.Google Scholar
Watson, D. J. (1958). Ann. Bot. 22, 37.CrossRefGoogle Scholar