Hostname: page-component-cd9895bd7-dzt6s Total loading time: 0 Render date: 2025-01-05T12:41:46.377Z Has data issue: false hasContentIssue false
  • English
  • Français

Dry Matter Accumulation and Tuber Sprouting in Yams (Dioscorea SPP)

Published online by Cambridge University Press:  03 October 2008

Obinani O. Okoli
Obinani O. Okoli
Affiliation:
National Root Crops Research Institute, Umudike, Umuahia, Nigeria
Get access Rights & Permissions [Opens in a new window]

Summary

Dry matter produced and allocated to the tuber and aerial portions of yam plants (Dioscorea spp) were studied over 3 cropping seasons in the moist forest region of Nigeria, in an attempt to relate dry matter accumulation to vegetative maturity in the crop. The effect of duration of growth of yam on post-harvest dormancy was also studied. Cultivars differed both in the total amount and period of growth when most dry matter was accumulated. A higher proportion of dry matter was allocated to tubers in lower-yielding than in higher-yielding cultivars. It appears that a yam tuber is ‘mature’ almost as soon as it is formed.

Type
Research Article
Information
Experimental Agriculture , Volume 16 , Issue 2 , April 1980 , pp. 161 - 167
Copyright
Copyright © Cambridge University Press 1980

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Anon. (1955). A. Rep. Dept Agric. Eastern Nigeria, 1954–1955.Google Scholar
Allison, J. C. & Watson, D. J. (1966). Ann. Bot. 30:365.CrossRefGoogle Scholar
Bardyshev, M. A. & Masnyi, M. N. (1969). Izv. Akad. Nauk beloruss. SSR 5:39.Google Scholar
Campbell, J. S., Chukwueke, V. O., Teriba, F. A. & He-A-Shu, H. V. S. (1962). Emp. J. Expl Agric. 30:109.Google Scholar
Gooding, E. G. B. & Hoad, R. M. (1967). Proc. Int. Symp. Trop. Root Crops, Trinidad, I, III, 137.Google Scholar
Haynes, P. H., Spence, J. A. & Walter, C. J. (1967). Proc. Int. Symp. Trop. Root Crops, Trinidad, I, III, 1.Google Scholar
Irvine, F. R. (1969). West African Crops (Vol. 2). Oxford University Press.Google Scholar
Kheiralla, A. I. & Whittington, W. J. (1962). Ann. Bot. 26:489.CrossRefGoogle Scholar
Kiryukhin, V. (1969). Kartofel Ovoschi. 11:11.Google Scholar
Loomis, R. S. & Rapoport, H. (1977). Proc. 4th Symp. Int. Soc. Trop. Crops, Cali, Colombia. IDRC-080e, 70.Google Scholar
Moorby, J. & Milthorpe, F. L. (1975). Crop Physiology (Ed. Evans, L. T.). Cambridge Univ. Press.Google Scholar
Sobulo, R. A. (1972). Expl Agric. 8:99.CrossRefGoogle Scholar
Waitt, A. W. (1965). Dept Agric. Res. Memo. 60, Ibadan, Nigeria.Google Scholar