Assessing trait contribution and mapping novel QTL for salinity tolerance using the Bangladeshi rice landrace Capsule

Rice

Table 1 Correlation coefficients for the associations among Na⁺ concentration, overall phenotypic score (SES), survival, K⁺ concentration, Na⁺-K⁺ ratio, shoot and root biomass, and shoot length in F_2:3 population of a cross between Capsule (salt tolerant) and BR29 (salt sensitive) subjected to salt stress at seedling stage

Trait	Na⁺ conc.	SES	Survival (%)	K⁺ conc.	Na⁺-K⁺ ratio	Biomass (mg)		Shoot length (cm)
Trait	Na⁺ conc.	SES	Survival (%)	K⁺ conc.	Na⁺-K⁺ ratio	Shoot	Root	Shoot length (cm)
SES	0.692^**
Survival	−0.709^**	−0.795^**
K⁺ concentration	−0.299^**	− 0.184	0.363^**
Na⁺-K⁺ ratio	0.476^**	0.440^**	−0.422^**	−0.280^**
Biomass (shoot)	−0.632^**	−0.815^**	0.692^**	0.262^*	−0.480^**
Biomass (root)	−0.615^**	−0.809^**	0.723^**	0.298^**	−0.483^**	0.930^**
Shoot length (cm)	−0.667^**	−0.739^**	0.774^**	0.278^**	−0.417^**	0.747^**	0.721^**
SPAD value	−0.617^**	−0.541^**	0.504^**	0.041	−0.380^**	0.462^**	0.436^**	0.517^**

conc. concentration
^*, ^** significant at P < 0.05 and P < 0.01, respectively; Tabulated t-value at 5% level = 1.989, at 1% level = 2.638