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Variability of Grain Sorghum Yields as Influenced by Size, Shape, and Number of Plats 1
Author(s) -
Swanson Arthur F.
Publication year - 1930
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/agronj1930.00021962002200100002x
Subject(s) - sorghum , citation , agriculture , agricultural experiment station , mathematics , political science , agricultural economics , agricultural science , library science , agronomy , history , computer science , economics , environmental science , archaeology , biology
Many experiments have been conducted with field and orchard crops to determine the most suitable size, shape, and number of plats necessary to obtain reliable comparisons of yield. Such experiments on sorghums seem to be limited to those reported by, Stephens and Vinall (3). 3 They sub-divided a field of feterita at Chillicothe, Texas, into 2,ooo rod-row units. The rows were 40 inches apart and the rod-row units were equivalent to an area of approximately ~/800 acre. The total green weight of the forage in ounces from each unit was used as the basis for computation. From various combinations of the ultimate units into larger plats they concluded that three or four plats, ̄/4° to ~/80 acre in size, gave results sufficiently reliable for determination of forage yields of sorghums. This paper presents data on the influence of size and shape of plats and the number of replications on the variability in the yields of sorghum grain. The data were obtained at the Fort I-Iays Branch ExperimentStation, I-lays, Kansas, during the fall of ~923.