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A Field Technique to Study Root Growth in Peanut
Author(s) -
Kvien C. S.,
Schroeder J.,
Banks P. A.
Publication year - 1988
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/agronj1988.00021962008000050035x
Subject(s) - tifton , fluridone , loam , arachis hypogaea , subsoil , agronomy , field experiment , mathematics , horticulture , environmental science , chemistry , soil water , biology , soil science , forage , biochemistry , abscisic acid , gene
Traditional techniques for the field study of root growth usually require extensive monitoring devices and a large labor force. We have developed a simple field technique to study root growth using the carotene‐inhibiting herbicide, fluridone {1‐methyl‐3‐phenyl‐5‐[3‐( trifluoromethyl)phenyl ]‐4(1 H )‐pyridinone}. Underground bands (0‐ to 15‐, 20‐ to 35‐, or 40‐ to 55‐cm vertical depth, 5 cm in width) of fluridone were sprayed into location using fan nozzles mounted on a subsoil tine. The experiment was conducted near Tifton, GA, on a Tifton loamy sand (fine‐loamy, siliceous, thermic Plinthic Paleudults). Peanut ( Arachis hypogaea L.) seed were hand planted in 3‐m‐long rows at a 23° angle to the band. The horizontal distance from row to fluridone band varied from 0 to 1.2 m. A root growth profile was generated by measuring, three times a week, the horizontal distance from the band to the farthest plant showing leaf bleaching. This technique provided a simple and accurate method for determining root growth patterns in peanut.