Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-13T02:19:03.337Z Has data issue: false hasContentIssue false

Growth of Amaranthus Hybridus (African Spinach) under diffferent Daylight Intensities in the Dry Season in Southern Nigeria

Published online by Cambridge University Press:  03 October 2008

J. M. O. Eze
Affiliation:
Department of Botany, University of Benin, Benin City, Nigeria

Summary

The growth of Amaranthus hybridus under different daylight intensities was assessed in terms of physical, morphological and biochemical parameters. Maximum growth in many respects was achieved at about 70% of full daylight. However, full daylight favoured chlorophyll stability and maximum accumulation of total dry matter, carbohydrate, chlorophyll and ascorbic acid. The leaf area ratio increased uniformly with decrease in light intensity. Ageing was accelerated by full daylight. Reduced light intensity reduced dry matter accumulation in the roots more than in the stems or leaves.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1987

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

Arnon, D. I. (1949). Copper enzymes in isolated chloroplasts, polyphenol oxidases in Beta vulgaris. Plant Physiology 24:115.CrossRefGoogle Scholar
Bassir, O. (1980). The nutritive value of some Nigerian leafy green vegetables. Food Chemistry 5:231235.Google Scholar
Blackman, G. E. (1962). The limit of plant productivity. Report of East Mailing Research Station 1961, 3950.Google Scholar
Enyi, B. A. C. (1965). Effect of seedling height and frequency of cutting on growth and yield of African spinach (Amaranthus oleraceus). Nigerian Journal of Agricultural Science 2:3538.Google Scholar
Eze, J. M. O. (1973). The vegetative growth of Helianthus annuus and Phaseolus vulgaris as affected by seasonal factors in Freetown, Sierra Leone. Annals of Botany 37:315329.CrossRefGoogle Scholar
Eze, J. M. O. & Dumbroff, E. B. (1982). A comparison of the Bradford and Lowry methods for the analysis of protein in chlorophyllous tissue. Canadian Journal of Botany 60:10461049.CrossRefGoogle Scholar
Hesketh, J. D. & Moss, D. W. (1963). Variation in the response of photosynthesis to light. Crop Science 3:107110.CrossRefGoogle Scholar
Hewitt, E. J. (1966). Sand and Water Culture Methods Used in the Study of Plant Nutrition, 2nd Edition. Farnham Royal, Bucks, England: Commonwealth Agricultural Bureau.Google Scholar
Kaloyereas, S. A. (1958). A new method of determining drought resistance. Plant Physiology 33:232233.CrossRefGoogle ScholarPubMed
Lowry, O. H., Rosebrough, N. J., Fair, A. L. & Randal, R. J. (1951). Protein measurement with the Folin phenol reagent. Journal of Biological Chemistry 193:265275.CrossRefGoogle ScholarPubMed
McPherson, A. T. (1972). Direct use of leaf vegetables as a source of protein and other nutrients in the human diet. Symposium on Protein Foods, 142152 (Ed. Oke, O. L.). Lagos, Nigeria: John West Publications.Google Scholar
Njoku, E. (1959). An analysis of plant growth in some West African species. I. Growth in full daylight. Journal of the West African Science Association 5:3756.Google Scholar
Oke, O. L. (1965). Chemical studies of some Nigerian vegetables. Experimental Agriculture 1:125129.CrossRefGoogle Scholar
Siminovitch, D., Wilson, C. M. & Briggs, P. R. (1953). Studies on the chemistry of the living bark of the black locust in relation to its frost hardiness. V. Seasonal transformations and variations in the carbohydrates: starch-sucrose interconversions. Plant Physiology 28:283400.CrossRefGoogle ScholarPubMed