TABLE 2. PERCENT LETTUCE HEADS HARVESTED FROM A VARIETY
 BELLE GLADE. FLORIDA. 1948.


AND STRAIN, DATE OF PLANTING TEST, EVERGLADES EXPERIMENT STATION,


 1st Planting 2nd Planting 3rd Planting 4th Planting 5th Planting 6th Planting
 Date Seed Planted Sept.30,1947 Oct.15, 1947 Nov. 3, 1947 Nov.15, 1947 Dec. 4, 1947 Dec.16, 1947
 Date Transplanted Nov. 6, 1947 Nov.21, 1947 Dec.22, 1947 Jan. 1, 1948 Jan. 9, 1948 Feb. 9, 1948
 Date of First Harvest Tan. 5, 1948 Jan.22, 1948 Feb.26, 1948 Mar. 5, 1948 Mar.12, 1948 April 5,1948
No. Variety or Strain Stock No. Seed Source Percent Percent Percent Percent Percent Percent
1. Great Lakes Southern
 Seed Co. 87.2 72.8 75.6 55.4 38.6 15.2
 2. Cornell #456 4140 Ferry-Morse 83.6 52.0 59.6 50.0 54.0 -
 3. Imperial #847 6173 Ferry-Morse 18.0 26.4 52.8 .0 -
 4. Imperial #UA 5098 Ferry-Morse 72.4 52.8 72.8 62.6 58.6 -
 5. Great Lakes 6412 Ferry-Morse 80.8 6.8 68.4 57.4 59.0 30.4
 6. Great Lakes Corneli 80.4 78.4 61.6 66.6 38.6 28.4
 7. Imperial #87 Corneli 23.2 18.0 72.8 46.0 -
 8. Cornell #456 Corneli 75.6 74.4 80.4 56.6 60.0 20.8
 9. Great Lakes 726 Abbott & Cobb 88.0 70.4 64.4 57.4 69.6 30.8
 10. Great Lakes C261.4 Kilgore 81.2 82.4 71.6 56.0 58.0 16.8
 11. Great Lakes C261.3 Kilgore 83.6 62.8 73.6 62.0 49.0 28.0
 12. Imperial #44 C256.1 Kilgore 59.2 74.0 73.2 54.6 63.0 10.4
 13. Cornell #456 C253.1 Kilgore 76.4 70.4 76.4 52.6 65.6 -

 Least significant difference at 5% point 10.6 14.2 13.6 -13.4

 Least significant difference at 1% point 14.2 19.0 18.0 18.2