Screening sesame (Sesamum indicum) for resistance to multiple root-knot nematode species (Meloidogyne spp.)

Figure 1:

Sesame cultivars screened for resistance to Meloidogyne incognita, M_ hapla, M_ arenaria, and M_ enterolobii in a two greenhouse pot experiments_

Company	Cultivar
Equinomx	ES103
Equinom	ES107
Equinom	ES108
Sesacoy	S39
Sesaco	S3301
Sesaco	S3251
Sesaco	S3276

Visual root gall severity scores for sesame cultivars inoculated with 1,000 nematode eggs sixty days after inoculation_ Values in the table are the mean of eight replicate plants_ Root gall severity was rated on a scale of 0 to 10, with 0 = no root galling, 6 = approximately 50% of the root system galled, and 10 = 100% of the root system galled (adapted from Zeck 1971)_

Cultivar	Meloidogyne Species
	M. arenaria	M. enterolobii	M. hapla	M. incognita
ES103	0.4 b	0.6 bZ	0.0 b	0.0 b
ES107	0.1 b	1.0 b	0.0 b	0.0 b
ES108	1.0 b	0.7 b	0.0 b	0.1 b
S39	0.1 b	0.8 b	0.0 b	0.0 b
S3276	0.4 b	0.9 b	0.1 b	0.0 b
S3251	0.6 b	0.3 b	0.0 b	0.0 b
S3301	0.7 b	1.4 b	0.0 b	0.1 b
Tomato cv. ‘Rutgers’	2.6 a	6.3 a	2.0 a	5.0 a
P-value	<0.0001	<0.0001	<0.0001	<0.0001

Reproductive factor for sesame cultivars inoculated with 1,000 nematode eggs_ Values in the table are the mean of eight replicate plants_

Cultivar	Meloidogyne Species
	M. arenaria	M. enterolobii	M. hapla	M. incognita
	Reproductive factor (Pf/Pi)Y
ES103	0.68	0.15 aZ	0.12 a	0.04 a
S3301	1.01	0.43 ab	0.12 a	0.23 a
ES107	0.31	0.47 ab	1.05 a	0.03 a
ES108	0.81	0.16 ab	0.07 a	0.13 a
S3276	1.28	0.71 bc	0.69 a	0.08 a
S3251	0.44	0.75 bc	0.04 a	0.20 a
S39	1.13	1.63 c	0.18 a	0.04 a
Tomato cv. ‘Rutgers’	3.96	6.74 d	3.72 b	27.50 b
P-value	0.0649	<0.0001	<0.0001	<0.0001