Table 1.

Root system architecture and shoot traits along with their basic statistics of the wheat accessions in the diverse association panel.

S. No.	Trait Name	Abbreviation	Trait Description	Unit	Range	Mean ± SE	CV (%)
1	Total root size	TRS	Sum of the path length of seminal including primary roots and lateral roots (LRs)	cm	65.10–378.63	242.94 ± 5.35	26.06
2	First order lateral root number	FOLRN	Number of first order LRs (emerging from primary and seminal roots)	-	14.33–240.67	95.22 ± 3.58	44.50
3	Second order lateral root number	SOLRN	Number of second order LRs (emerging from first-order LRs)	-	6.67–490.33	165.57 ± 8.97	64.10
4	Lateral root size	LRS	First order length + second order length divided by total root size (TRS)	-	0.02–0.87	0.39 ± 0.01	38.39
5	Lateral root density	LRD	First-order LR no. divided by PRP	cm−1	0.81–5.89	2.81 ± 0.08	35.67
6	Root length density	RLD	TRS divided by volume of pot (500 cm3)	cm−2	0.11–0.76	0.49 ± 0.01	26.30
7	Average diameter	AD	Projected area divided by TRS	mm	0.31–0.49	0.38 ± 0.01	8.46
8	Root volume	RV	π × (Half of the avg. diameter/2) 2 × TRS	cm3	0.02–0.35	0.16 ± 0.01	37.62
9	Seminal root number	SRN	Primary root bursts through the coleorhiza	-	2.67–6.00	5.06 ± 0.04	10.29
10	Shoot dry weight	SDW	Shoot dry weight	mg	5.02–60.41	35.58 ± 0.88	29.18
11	Root dry weight	RDW	Root dry weight	mg	1.07–23.06	10.76 ± 0.32	35.14
12	Shoot length	SL	Shoot length	cm	13.57–40.77	30.61 ± 0.41	15.97
13	Root length	RL	Root length	cm	9.67–37.50	24.81 ± 0.54	25.83
14	Root shoot dry weight ratio	RSDWR	Ratio of root to shoot dry weight	-	0.16–0.59	0.31 ± 0.01	26.07
15	Specific root length	SRL	Total root length per unit root dry mass	cm mg−1	1.32–9.10	2.52 ± 0.07	34.02