Table 3: Russet potato main effect in 2009 for deformed tubers, rotten tubers as a percentage of total yield, marketable tuber yield, and total tuber yield for Russet potatoes grown on sandy loam soils in the Mid-Atlantic, averaged across N rate and N application timing.

Variety Deformed tubers Rotten tubers Marketable yield Total yield Percentage of tubers Percentage of total yield kg ha-1 Goldrush 66.7 a† 34.5 a 16894 a 24549 a Norkotah 43.2 b 34.6 a 10343 b 15276 b LSD0.10 6.7 4.6 1928 2025 Pr > F < 0.0001 0.9726 <0.0001 <0.0001

†Means within each dependent variable with the same letter are not significantly different (P ≥ 0.10, Fisher’s Protected LSD) and can be compared within column.