Table 3.

Significant discriminator traits for screening desirable accessions in each selection indices under control and water deficit stress conditions.

Trait	Abb.	Control conditions	Water deficit conditions
Root fresh weight	RFW	✓
Root dry weight	RDW
Root tissue density	RTD	✓
Specific root length	SRL		✓
Root diameter	RD
Root branch number	RBN		✓
Root surface area	RA	✓	✓
Total root surface area	TSA	✓	✓
Root volume	RV	✓	✓
Shoot fresh weight	SFW	✓
Shoot dry weight	SDW
Shoot-to-root fresh weight ratio	SRF	✓
Shoot-to-root dry weight ratio	SRD
Relative chlorophyll content	SPAD	✓	✓
Leaf temperature	LT		✓
Stomatal conductance	Gs		✓
Initial fluorescence	Fo	✓	✓
Maximum fluorescence	Fm	✓	✓
Maximum quantum yield of PSII	Fv/Fm
Maximum primary yield of photochemistry of PSII	Fv/Fo
Relative water content	RWC		✓
Shoot fresh weight	SFW
Shoot dry weight	SDW