Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-28T14:29:18.442Z Has data issue: false hasContentIssue false
  • English
  • Français

The effects of seed size and spacing on growth and yield of lesser yam (Dioscorea esculenta)

Published online by Cambridge University Press:  27 March 2009

B. A. C. Enyi
B. A. C. Enyi
Affiliation:
Faculty of Agriculture, Njala University College, Sierra-Leone
Get access Rights & Permissions [Opens in a new window]

Summary

The effects of seed size and spacing on growth, development and yield of lesser yam and the relationship between growth, development and yield in this yam variety were investigated in the 1967 and 1968 growing seasons. Larger seeds outyielded smaller ones both in the total and ware tuber yields. The seed size effect was associated with a difference in tuber number, leaf area duration and bulking rate. Mean tuber weight at harvest, decreased with the decrease in seed size. Total and ware tuber yields increased with the decrease in spacing distance. The spacing effect was associated with differences in leaf area duration and bulking rate per unit area. Final total dry matter produced per plant increased with the increase in both seed size and spacing distance but the dry matter produced per unit area decreased with the increase in spacing distance. Leaf area index and leaf area duration increased with an increase in seed size and decreased with increase in spacing distance. There was a greater positive relationship between total tuber yield and leaf area duration between tuber initiation and the final sampling period than that between it and absolute leaf area duration.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 78 , Issue 2 , April 1972 , pp. 215 - 225
Copyright
Copyright © Cambridge University Press 1972

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

Bates, G. H. (1935). A study of the factors influencing size of potato tubers. J. agric. Sci., Camb. 25, 297–313.CrossRefGoogle Scholar
Black, J. N. (1959). Seed size in herbage legumes. Herb. Abatr. 29 (4), 235–41.Google Scholar
Bremner, P. M. & Taha, M. A. (1966). Study in potato agronomy. I. The effects of variety, seed size and spacing on growth, development and yield. J. agric. Sci., Camb. 66, 241–52.CrossRefGoogle Scholar
Borah, M. N. & Milthorpe, F. L. (1959). The growth of the potato plant. Rep. Univ. Nottingham Sch. Agric, pp. 41–5.Google Scholar
Borah, M. N. & Milthorpe, F. L. (1963). Growth of potato as influenced by temperature. Indian J. PI. Physiol. 5, 53–73.Google Scholar
Enyi, B. A. C. (1967). Effect of spacing, sett size, ridging and mulching on the development and yield of cocoyam (Xanthosoma sagittlfolium Schott). Trop. agric, Trin. 44, 53–60.Google Scholar
Findlay, D. H. & Sykes, E. T. (1938). Influence of size of seed and spacing on the yield of King Edward VII potatoes. Emp. J. exp. Agric. 6, 253–61.Google Scholar
Girardot, L. V. (1956). Planting and fertilizer experiments with yams. Liberia (Suakoko) Cent. Agric Exp. St. Note 9.Google Scholar
Kapoor, S. L. (1959). Seed factor in potato production in India. Rur. India, 12, 404–6.Google Scholar
Njoku, E. (1963). The propagation of yam (Dioacorea spp.) by Vine Cuttings. Jl. W. Afr. Sci. Ass. 8, 29–32.Google Scholar
Singh, M. (1952). The influence of cultural and manurial factors on plant development and yield of potato. Emp. J. exp. Agric. 20, 301–15.Google Scholar
Tingey, D. C. & George, S. (1928). Effect of size of seed, sett on yield and on certain other characteristics in potatoes. J. Am. Soc. Agron. 20, 710–21.CrossRefGoogle Scholar