Premium
Temperature Effect on Emergence Rate of Cotton ( Gossypium hirsutum L.) under Field Situations
Author(s) -
Wanjura D. F.,
Hudspeth E. B.,
Bilbro J. D.
Publication year - 1969
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1969.00021962006100030016x
Subject(s) - sowing , gossypium hirsutum , agronomy , air temperature , acceleration , environmental science , mathematics , atmospheric sciences , biology , physics , classical mechanics
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. Q 10 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.