Table 2, replicated (cont.) Marketable Yield7 (bA) Cultivar Source Earlyz Total Colorx curvature" Early Prolific SN Twilley 173 cd 528 cd 1.0 Daytona Northrup King 173 cd 489 ed 3.7 Slenderella Niagara 171 ed 475 cd 1.7 Golden Summer CN Burpee 94 e 365 d 4.0 Harvested by April 29, 1978 YMean separation for each type of squash by Duncan's New Multiple Range Test, 5% level. XRated from 1, white; to 5, dark green. WRated from 1, straight; to 5, very curved. Comments: Planted February 23, 1978 in single-row plots 24 ft long with hills 2 ft apart and rows 5 ft apart. Fertilization: 800 Ib/A 5-15-8 applied preplant and 650 lb/A 15-0-14 in 3 other applications before flowering. I ,