Table 2. Correlation coefficient between reduction in seedling growth and biomass, seedling survival, alkaline scores, Na⁺, K⁺ and Na/K rat ratio attributes of alkalinity stress grown in the hydroponic at 40 mM NaHCO₃ and in the field condition.

	RGM	RSG	R.BIOMASS	SS	SCORE	RSYH	H T Na+	H T K+	YLD 13	YLD 14	YLD 15	FTNa+	FTK+	FNa/K+	HNa/K+
RGM
RSG	0.987**
R.BIOMASS	0.991**	0.977**
SS	0.974**	0.957**	0.968**
SCORE	-0.976**	-0.970**	-0.968**	-0.977**
RSYH	0.939**	0.945**	0.935**	0.923**	-0.965**
H T Na+	-0.971**	-0.959**	-0.963**	-0.952**	0.971**	-0.946**
H T K+	0.946**	0.961**	0.949**	0.934**	-0.951**	0.956**	-0.933**
YLD 13	0.906**	0.889**	0.880**	0.866**	-0.847**	-0.792**	-0.832**	0.792**
YLD 14	0.970**	0.963**	0.957**	0.965**	-0.975**	-0.957**	-0.960**	-0.939**	0.951**
F TNa+	-0.109	-0.115	-0.080	-0.115	0.129	-0.131	0.045	-0.106	-0.190	-0.021	-0.062
F TK+	0.114	0.080	0.099	0.109	-0.081	0.009	-0.052	-0.045	0.265	0.204	0.196	-0.932**
F Na/K+	-0.360	-0.346	-0.331	-0.354	0.354	-0.323	0.285	-0.298	-0.434	-0.287	-0.313	0.285	-0.298**
H Na/K+	-0.991**	-0.991**	-0.985**	-0.973**	0.984**	-0.958**	0.982**	-0.971**	-0.872**	-0.973**	-0.953**	0.982**	-0.971**	0.313

RGM = Reduction germination; R.S.G = Reduction seedling growth; R. biomass = Reduction biomass; SS = Seedling survival; RSYH = Reduction seed yield hydroponic; HT Na⁺ = Hydroponic total sodium; HT K⁺ = Hydroponic total potassium; YLD 13 = Yield-2013; YLD14 = Yield 2014; YLD15 = Yield 2015; F TNa⁺ = Field total sodium; F TK⁺ = Field total potassium; F Na⁺/K⁺ = Field sodium, potassium ratio; H Na/K⁺ = Hydroponic sodium / potassium ratio.

** indicates (P<0.001).