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Comparative growth of maize cultivars with different leaf orientation

Published online by Cambridge University Press:  27 March 2009

S. U. Remison  and
J. M. Fajemisinf
S. U. Remison
Affiliation:
Maize Programme, National Cereals Research Institute, P.M.B. 5042, Ibadan, Nigeria
J. M. Fajemisinf
Affiliation:
Maize Programme, National Cereals Research Institute, P.M.B. 5042, Ibadan, Nigeria
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Summary

Two maize hybrids, NHYB-1 and NHYB-2 with upright leaf orientation, and two composites, FARZ 27 and 34 with lax leaf orientation, were compared. The crops were grown at three levels of nitrogen (0, 75 and 150 kg N/ha) at Ibadan in the rain forest zone of Nigeria in 1979 and 1980.

N application increased leaf area index (LAI) and hastened flowering. The composites had greater LAI than the hybrids. Lodging was greater at harvest than at mid-silk and severer in the hybrids than in the composites. Grain, stover and total dry-matter yields were greater for the composites.

The hybrids were more responsive to N application in 1979 but the pattern was not consistent in 1980. More dry matter was partitioned to the grain in the hybrids as shown by their higher harvest index, especially in 1979. The concentration of N in ear leaf and stover increased with increase in N application, but P and K concentrations in the stover were highest in the control treatment.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 99 , Issue 1 , August 1982 , pp. 61 - 66
Copyright
Copyright © Cambridge University Press 1982

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References

REFERENCES

Allan, A. V. (1908). Maize research in Kenya. 3. Agronomy Research. Span 2, 147–149.Google Scholar
Ebeehabt, S. A. & Spraooe, G. F. (1973). A major cereals project to improve maize, sorghum and millet production in Africa. Agronomy Journal 65, 365–373.Google Scholar
Jugenheimeb, R. W. (1958). Hybrid maize breeding and seed production. FAO Agricultural Development paper.Google Scholar
Millar, C. E. (1965). Soil Fertility. 4th edn.New York: John Wiley and Sons.Google Scholar
Mock, J. J. & Heghin, L. C. (1976). Performance of maize hybrids grown in conventional row and randomly distributed planting patterns. Agronomy Journal 68, 577–580.CrossRefGoogle Scholar
Obilana, A. (1978). What maize to grow, synthetic or hybrids? Paper presented at the 4th National Rice/Maize workshop of the NAFPP at NCRI, Ibadan, 7–14 December.Google Scholar
Perenzin, M., Maogiobe, T. & Motto, M. (1978). Defoliation response of different genotypes of maize. Maydica 23, 163–172.Google Scholar
Singh, R. F. & Nair, K. P. P. (1975). Defoliation studies in maize. 1. Grain yield, quality and chemical composition. Journal of Agricultural Science, Cambridge 85, 241–245.CrossRefGoogle Scholar