Table 7. Variation in root architectural traits of ten contrasting mungbean genotypes under optimum and low phosphorus conditions.

Genotypes	CP EM	Root traits
		PRL		TRL		TSA		TRV		RAD		TRT		RF
		OP	LP	OP	LP	OP	LP	OP	LP	OP	LP	OP	LP	OP	LP
Top five genotypes
IPM-288	1.77	25.00	32.67	839.70	1198.07	82.17	129.37	0.62	1.11	0.30	0.35	618.70	1067.33	2669.00	2301.33
TM 96–25	1.55	32.00	31.00	525.00	740.40	65.87	84.27	0.44	0.76	0.32	0.36	474.67	849.33	1517.33	1566.67
TM 96–2	1.48	44.33	41.00	777.53	932.53	70.67	100.20	0.51	0.86	0.29	0.34	728.33	1138.67	1817.33	2028.67
M 1477	1.37	28.83	32.33	631.75	740.74	60.34	78.67	0.44	0.72	0.30	0.35	594.00	653.33	1252.33	1644.33
PUSA 1342	1.27	29.33	44.00	734.35	928.65	73.73	96.42	0.52	0.80	0.31	0.33	898.33	742.00	1765.00	2017.33
Bottom five genotypes
M 1131	0.18	38.00	33.00	843.25	509.77	85.62	49.83	0.61	0.37	0.31	0.31	900.67	703.67	2402.00	1388.33
PS—16	0.19	26.67	23.00	591.66	277.07	67.35	35.60	0.61	0.36	0.37	0.41	697.33	233.67	1107.33	448.67
PUSA VISHAL	0.19	38.00	32.33	1449.93	726.73	175.81	88.14	1.68	0.94	0.37	0.41	1222.00	475.00	3755.67	1204.00
M 831	0.22	41.00	32.17	945.84	662.59	95.35	63.94	0.65	0.49	0.30	0.31	1209.33	785.67	3234.00	1556.00
IC 325828	0.23	41.00	36.67	1061.36	709.37	113.83	77.45	0.95	0.67	0.35	0.35	960.67	793.00	3559.33	1502.33

Contrasting genotypes identified using Comprehensive phosphorus efficiency measurement value. PRL, primary root length; TRL, total root length; TSA, total root surface area; TRV, total root volume; TRT, total root tips; RAD, root average diameter; RF, root forks; OP, optimum phosphorus; LP, low phosphorus.