Environmental Systems Research

Table 4 Correlation coefficients between selected mean yield and yield components of wheat

From: Nutrient uptake, use efficiency and productivity of bread wheat (Triticum aestivum L.) as affected by nitrogen and potassium fertilizer in Keddida Gamela Woreda, Southern Ethiopia

	GY	AGB	SY	HI	TSW	NKS	TT	PT
	Kgha⁻¹	Kgha⁻¹	Kgha⁻¹	%	Gm	No	No.m²	No.m²
GY	1
AGB	0.99**	1
SY	0.97*	0.99**	1
HI	0.97*	0.98**	0.98**	1
TSW	0.97**	0.99**	0.99**	0.99**	1
NKS	0.96**	0.98**	0.98**	0.99**	0.99**	1
TT	0.98**	0.99**	0.99**	0.99**	0.99**	0.99**	1
PT	0.97**	0.99**	0.98**	0.97**	0.99*	0.98**	0.99**	1

* and **, significant at 5% and 1% level of significance, respectively
GY grain yield, AGB above ground biomass, SY straw yield, HI harvest index, TSW thousand seed weight, NKS No. of kernel per spike, TT total tiler, PT productive tilers

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