Nitrogen Fertilizer and Growth Regulator Impacts on Tuber Deformity, Rot, and Yield for Russet Potatoes

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.