Potato Research

, Volume 33, Issue 2, pp 257–267 | Cite as

Relationships between numbers of main stems and yield components of potato (Solanum tuberosum L. cv. Erntestolz) as influenced by different daylengths

  • Berga Lemaga
  • K. Caesar
Article

Summary

The relationshops between numbers of main stems and some measures of growth and yield, as well as total tuber yield, were examined for potatoes grown under different daylengths. Leaf area, tuber number and tuber yield per plant increased significantly with increasing daylength and number of main stems. Numbers of main stems and leaf area were correlated positively with tuber number and tuber yield and negatively with average tuber weight. The correlations were stronger with stem number than with leaf area and were differently affected by daylength. Standard regression coefficients indicated that stem number has strong positive and negative relationships with tuber number and average tuber weight, respectively. Since tuber number was a better determinant of yeild than average tuber weight, the final relationship between the numbers of main stems and tuber yield remained positive for all daylengths. Determinants that will best explain variation in tuber total yield, tuber number, and average tuber weight are suggested.

Additional key words

leaf area tuber number average tuber weight predictor variable 

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References

  1. Ahmed, Ch. M. S. & G. R. Sagar, 1981. Volume increase of individual tubers of potatoes grown under field conditions.Potato Research 24: 279–288.Google Scholar
  2. Allen, E. J. & R. K. Scott, 1980. An analysis of growth of the potato crop.Journal of Agricultural Science, Cambridge 94: 583–606.Google Scholar
  3. Bleasdale, J. K. A., 1965. Relationships between set characters and yield in main crop potatoes.Journal of Agricultural Science, Cambridge 64: 361–366.Google Scholar
  4. Bremner, P. M. & M. A. Taha, 1966. Studies in potato agronomy. I. The effects of variety, seed size and spacing on growth, development and yield.Journal of Agricultural Science, Cambridge 66: 241–252.Google Scholar
  5. Caesar, K., K. B. A. Bodlaender, Chr. Hünicken, L. Roer & M. Umaerus, 1981. Growth of four potato varieties under different ecological conditions. Report of a Working Group of the Section Physiology of the European Association for Potato Research, Berlin.Google Scholar
  6. Collins, W. B., 1977. Analysis of growth in Kennebec with emphasis on the relationship between stem number and yield.American Potato Journal 54: 33–40.Google Scholar
  7. Goodwin, P. B., A. Brown, J. H. Lennard & F. L. Milthorpe, 1969. Effect of centre of production, maturity and storage treatment of seed tubers on the growth of early potatoes. II. Field growth.Journal of Agricultural Science, Cambridge 73: 167–176.Google Scholar
  8. Gray, D., 1972. Spacing and harvest date experiments with Maris Peer potatoes.Journal of Agricultural Science, Cambridge 79: 281–290.Google Scholar
  9. Hammes, P. S., 1985. The effect of stem population on tuber yield in a trial with single-stem seed pieces.Potato Research 28: 119–121.CrossRefGoogle Scholar
  10. Hawkins, A. F., 1982. Light interception, photosynthesis and crop productivity.Outlook on Agriculture 11: 104–113.Google Scholar
  11. Iritani, W. M., L. D. Weller & N. R. Knowles, 1983. Relationships between stem number, tuber set and yield of Russet Burbank potatoes.American Potato Journal 60: 423–431.Google Scholar
  12. Lemaga, B., 1986. The relationship between the number of main stems and tuber yield of potatoes (Solanum tuberosum L.) under the influence of different daylength and soil temperature conditions. Ph. D. Thesis, Technical University of Berlin.Google Scholar
  13. MacKerron, D. K. L. & P. D. Waister, 1983. Light interception and dry matter accumulation of potato cultivars of contrasting habit. (Abstract).Potato Research 26: 88–89.Google Scholar
  14. Silva, G. H. & W. T. Andrew, 1985. Hill to hill variations in tuber yield of potatoes in Alberta.American Potato Journal 62: 119–127.Google Scholar
  15. Thompson, R. & H. Taylor, 1974. Stem density and maturation studies with the potato cultivars Maris Peer and Pentland Marble.Potato Research 17: 51–63.Google Scholar
  16. Wurr, D. C. E., 1974. Some effects of seed size and spacing on the yield and grading of two maincrop potato varieties. I. Final yield and its relationship to plant population.Journal of Agricultural Science, Cambridge 82: 37–45.Google Scholar

Copyright information

© Kluwer Academic Publishers 1990

Authors and Affiliations

  • Berga Lemaga
    • 1
  • K. Caesar
    • 1
  1. 1.Institute of Crop ScienceTechnical University of BerlinBerlin 33Bundesrepublik Deutschland

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