Hostname: page-component-669899f699-g7b4s Total loading time: 0 Render date: 2025-04-27T04:12:07.419Z Has data issue: false hasContentIssue false
  • English
  • Français

Growth, development and yield of pigeon pea (Cajanus cajan (L.) Millsp.) in the lowland tropics:1. Effect of plant population density

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

The growth, development and yield of pigeon pea (cv. Cita-1) grown at three population densities of 27 000, 55000 and 83000 plants/ha were evaluated in two field trials during the growing season of 1980.

The results obtained showed that there was a progressive reduction in the developmentv per plant of vegetative characters, dry-matter accumulation and yield characters as population density increased. The calculated growth rates (net assimilation rate, crop growth rate, relative growth rate and leaf area ratio) were more or less the same at all population densities. The yields of seeds were 0·39 and 0·51 t/ha for the lowest population density, 0·43 and 0·65 t/ha for the medium population density and 0·58 and 0·75 t/ha for the highest population density for the two trials respectively.

It would seem, therefore, that under the prevailing lowland humid tropical conditions, a population density of at least 80000 plants/ha would be needed to ensure maximum productivity in the sole cropping of pigeon pea.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 98 , Issue 1 , February 1982 , pp. 65 - 69
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.)

Article purchase

Temporarily unavailable

References

REFERENCES

Hammerton, J. L. (1971). A spacing/planting date trial with Cajanus cajan (L.) Millsp. Tropical Agriculture, Trinidad 48, 341–350.Google Scholar
Hammerton, J. L. (1976). Effect of planting date on growth and yield of pigeon pea (Cajanus cajan (L.) Millsp.). Journal of Agricultural Science, Cambridge87, 649–660.CrossRefGoogle Scholar
Sen, S., Sur, S. C., Gupta, K. S. & De, T. K. (1970). A further study on spacing requirement of Cajanus cajan (L.) Millsp. Allahabad Farmer 44, 153–157.Google Scholar
Singh, L., Maheshwari, S. K. & Sharma, D. (1971). Effect of date of planting and plant population on growth, yield, yield components and protein content of pigeon pea (Cajanus cajan (L.) Millsp.). Indian Journal of Agricultural Science 41, 535–538.Google Scholar
Tayo, T. O. (1982). Quantitative analysis of the growth, development and yield of a dwarf variety of pigeon pea (Cajanus cajan (L.)). Journal of the West African Science Association (in the Press).Google Scholar
Veeraswamy, B., Rathnaswamy, R., Selvakumari, G. & Narayanan, P. B. (1972). Studies on the spacing of red gram (Cajanus cajan (L.) Millsp.). Madras Agricultural Journal 59, 435–436.Google Scholar