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Agronomy Journal Abstract -

Temperature Effect on Emergence Rate of Cotton (Gossypium hirsutum L.) under Field Situations1


This article in AJ

  1. Vol. 61 No. 3, p. 387-389
    Received: Sept 21, 1968

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  1. D. F. Wanjura,
  2. E. B. Hudspeth Jr. and
  3. J. D. Bilbro Jr.2



Under field conditions temperature is generally the primary factor controlling the rate of cotton emergence. Relationships were found between the time from planting to 45% of final emergence and soil temperature. Average daily minimum seed level temperature and average daily mean air temperature have a high linear correlation. Q10 values representing coefficients of emergence rate show the acceleration of emergence speed decreases with increasing increments of temperature. Though acceleration decreases, the net result is increasing emergence rate as seed level temperature increases.

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