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

Table 8

Growth regulator (MH-30) × variety interaction in 2011 for rotten tubers as a percentage of total yield and marketable tuber yield for Russet potatoes grown on sandy loam soils in the Mid-Atlantic, averaged across Nrates and N application timing.

Russet cultivar	Rotten tubers			Marketable yield
	With MH-30	No MH-30		With MH-30	No MH-30
	Percentage of total yield			kg ha^−1
Goldrush	52.3 b^†	39.2 c		7157 b	9423 a
Norkotah	86.4 a	86.5 a		2815 c	2573 c
LSD0.10	6.5			1705
Pr > F	0.0177			0.0873

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