Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-03T05:17:20.814Z Has data issue: false hasContentIssue false
  • English
  • Français

Growth, development and yield of pigeon pea (Cajanus cajan (L.) Millsp.) in the lowland tropics:3. Effect of early loss of apical dominance

Published online by Cambridge University Press:  27 March 2009

T. O. Tayo
T. O. Tayo
Affiliation:
Department of Agricultural Biology, University of Ibadan, Ibadan, Nigeria
Get access Rights & Permissions [Opens in a new window]

Summary

In a pot experiment and two field trials, the apical portionof the main stem of a dwarf variety of pigeon pea (ev. Cita-1) was removed at 3 or 7 weeks after sowing in order to evaluate the effect of apical bud removal, during the vegetative stage of growth, on the subsequent growth, development and yield of the crop.

The early loss of apical dominance led, in all cases, to increased vegetative development, reduced plant height (except in one of the field trials), higher dry-matter accumulation and more pods per plant, with the treatment effect on number of pods being related to the number of branches developed. The yield of seeds was significantly increased by the early loss of apical dominance in the pot experiment and second field trial.

The results therefore show that an early loss of apical dominance, as could happen with insect and pest attack, may not be damaging to the vegetative growth and seed yield of pigeon pea under the prevailing lowland humid tropical conditions.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 98 , Issue 1 , February 1982 , pp. 79 - 84
Copyright
Copyright © Cambridge University Press 1982

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

Adams, M. W. (1967). Basis of yield component compensation in crop plants with special reference to field bean, Phaseolus vulgaris. Crop Science 7, 505–510.Google Scholar
Duncan, W. G. (1975). Maize. In Crop Physiology (ed. Evans, L. T.) pp. 23–50. London, New York, Melbourne: Cambridge University Press.Google Scholar
Tayo, T. O. (1980). The response of two soya-bean varieties to the loss of apical dominance at the vegetative stage of growth. Journal of Agricultural Science, Cambridge 95, 409–416.CrossRefGoogle Scholar
Tayo, T. O. (1982 a). Quantitative study of flower and pod production in pigeon pea (Cajanus cajan L.). Journal of the West African Science Association (in the Press).Google Scholar
Tayo, T. O. (1982 b). Growth, development and yield of pigeon pea (Cajanus cajan (L.) Millsp.) in the lowland tropics. 1. Effect of plant population density. Journal of Agricultural Science, Cambridge 98, 65–69.CrossRefGoogle Scholar
Wakankar, S. M. & Yadau, L. N. (1975). Path analysis of yield components in arhar (Cajanus cajan). Indian Journal of Agricultural Research 9, 182–186.Google Scholar