Popis: |
A small plot field study was conducted on the Plant Science Research Farm of the Mississippi Agriculture and Forestry Experiment Station, Mississippi State, MS and the Delta Branch Experiment Station, Stoneville, MS. The experiment was conducted in a randomized complete block with 4 replications. Plots were 4 rows (38-inch rows) by 50 ft with 2 buffer rows between plots at the Plant Sci. Res. Farm and 4 buffer rows at the Delta Branch Experiment Station. Treatments were applied at the Plant Sci. Res. Farm on 25 Jul, 1, 14 and 19 Aug. All plots were oversprayed for boll weevil control with Guthion 2L (0.25 lb (AI)/acre) on 30 Aug 12, 20, 28 Sep, and 3 Oct. Plots were evaluated on 30 Jul and 16 Aug by making 5-ft whole plant counts in each plot. Yield data were collected by mechanically harvesting the center 2 rows of each plot on 21 Nov. |