Normalized Difference Vegetation Index as a Tool for Wheat Yield Estimation: A Case Study from Faisalabad, Pakistan

Table 6

Interactive effect of nitrogen levels wheat cultivars for NDVI score at maturity stage for the year 2009-10.

Wheat cultivars	Nitrogen levels				Means
	N1   (0 kg ha^−1)	N2   (55 kg ha^−1)	N3   (110 kg ha^−1)	N4   (220 kg ha^−1)
V1 = Faisalabad- 2008	0.37^ab	0.44^a	0.57^a	0.74^a	0.53^A
V2 = Lasani-2008	0.35^ab	0.44^a	0.55^ab	0.60^bc	0.49^AB
V3 = Miraj-2008	0.35^ab	0.44^a	0.47^b	0.64^b	0.48^B--D
V4 = Sahar-2006	0.37^a	0.45^a	0.52^ab	0.59^bc	0.48^A--C
V5 = Shafaq-2006	0.28^b	0.40^ab	0.45^b	0.62^b	0.44^B--E
V6 = GA-2002	0.35^ab	0.31^b	0.41^b	0.52^c	0.40^E
V7 = Bakkhar-2001	0.37^a	0.39^ab	0.43^b	0.51^c	0.42^DE
V8 = Inqlab-1991	0.33^ab	0.43^ab	0.52^ab	0.60^bc	0.47^B--D
V9 = Chakwal-1950	0.33^ab	0.34^b	0.48^b	0.73^a	0.47^B--D
V10 = Chakwal-1997	0.26^b	0.39^ab	0.50^ab	0.56^bc	0.43^C--E
Means	0.34 ^D	0.40 ^C	0.49 ^B	0.61 ^A

Means sharing different letters differ significantly at 𝑃≤0.05.