Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-23T23:19:32.290Z Has data issue: false hasContentIssue false
  • English
  • Français

Emergence of seedlings from different depths following high temperature stress

Published online by Cambridge University Press:  27 March 2009

I. C. Onwueme  and
S. A. Adegoroye
I. C. Onwueme
Affiliation:
Plant Science Department, University of Ife, Ile-Ife, Nigeria
S. A. Adegoroye
Affiliation:
Plant Science Department, University of Ife, Ile-Ife, Nigeria
Get access Rights & Permissions [Opens in a new window]

Summary

Seeds of Amaranthus, melon, cowpea and tomato were planted in moist soil at 1, 4 or 7·5 cm depth and subjected to a heat stress of 45 °C for 10 h on the day of sowing (day 0), 1 day after sowing or 2 days after sowing. Seedling emergence was retarded by heat stress, the most drastic retardation being due to heat stress on day 1 for cowpea and tomato, day 2 for melon, and day 0 for Amaranthus. Emergence also decreased with increasing depth of sowing. The interaction of depth and heat stress was also significant in all cases, such that the delay in emergence due to heat stress tended to be greater with increasing depth of sowing. The agronomic significance of the results is discussed.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 84 , Issue 3 , June 1975 , pp. 525 - 528
Copyright
Copyright © Cambridge University Press 1975

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

Geiger, R. (1959). Climate near the Ground. Harvard University Press. 494 pp.Google Scholar
Onwueme, I. C. (1974). Retardation of hypocotyl growth by prior heat stress in seedlings of cowpea, melon and tomato. Journal of Agricultural Science, Cambridge 83, 409–13.CrossRefGoogle Scholar
Onwueme, I. C. (1972). Heat-induced growth retardation and attempts at its prevention in barley and wheat coleoptiles. Journal of Agricultural Science, Cambridge 79, 331–3.CrossRefGoogle Scholar