Host-status of 20 sweet potato lines to Meloidogyne species in South Africa

Figures & data

Table 1. Fresh root mass (FRM), eggs, second-stage juveniles (J2) and reproductive potential (RP) of Meloidogyne javanica and Meloidogyne incognita race 2 and Meloidogyne incognita race 4 on sweet potato lines and nematode-susceptible standards at 56 days after inoculation.

	M. javanica				M. incognita race 2				M. incognita race 4
Line	FRM (g)	Eggs	J2	RP^y	FRM (g)	Eggs	J2	RP	FRM (g)	Eggs	J2	RP
ARC-Vegetable and Ornamental Plants (25°59″S, 28°35″E)
2005-5-5	34.1	14180	1810	464.8^bcd	20.1	3840	110	196.5^b	42.2	340	90	10.2^bc
2008-3-1	23.0	8900	1140	436.5^bcd	32.0	4530	80	144.1^b	47.0	770	60	17.7^bc
199062.1x.Ndou	37.4	64400	4950	1854.3^b	40.9	3830	200	98.5^bc	33.0	1240	100	40.6^b
Monatex1999-5-1	42.7	37330	5150	994.8^bcd	50.2	4330	210	90.4^bc	45.0	940	110	23.3^bc
1988-7-7	23.3	69160	7800	3303.0^a	37.7	3450	140	95.2^bc	43.1	2770	70	65.9^a
2000-12-16	31.6	24960	1030	822.5^bcd	76.3	2350	80	31.8^c	36.5	540	120	18.1^bc
1987-2-1	40.9	7980	1550	233.0^cd	25.2	6250	170	250.8^a	51.5	1990	230	43.1^b
1987-19-5	29.6	34930	3960	1313.9^bc	27.5	5750	110	213.1^b	51.0	990	140	22.2^bc
2008-5-5	30.5	22440	5460	914.8^bcd	42.4	6240	230	152.6^b	47.6	540	150	14.5^bc
2012-8-4	20.6	18580	3170	1055.8^bcd	19.5	1670	130	92.3^bc	42.2	910	90	23.7^bc
1990-10-2	15.2	0	0	0^d	23.7	0	0	0^d	42.0	0	0	0^d
Bophelo^z	32.1	8960	1140	314.6^cd	29.2	2370	40	82.5^bc	53.0	700	120	15.5^bc
Beauregard^z	35.1	9270	1630	310.5^cd	23.1	3840	100	170.6^b	44.0	650	150	18.2^bc
University of Limpopo (23°53′10″S, 29°44′15″E)
2013-26-3	16.2	1890	90	122.2^bc	8.4	1810	240	244.0^cde	11.2	1200	100	116.1^bc
2012-15-5	9.0	1790	70	206.7^b	5.7	3660	190	675.4^bcd	6.3	1150	80	195.2^b
2012-40-1	12.2	1270	50	108.2^bc	4.8	600	100	145.8^e	7.8	1000	70	137.2^bc
C5-1	14.0	3070	110	227.1^b	8.1	2170	130	284.0^cde	7.7	1470	90	202.6^b
2013-28-2	14.9	2220	80	154.4^bc	11.4	1790	160	171.1^de	9.6	920	80	104.2^c
2008-12-5	13.8	810	40	61.6^c	6.5	1580	70	253.8^cde	8.7	1610	110	197.7^b
2008-8-5	14.3	1170	60	86.0^bc	7.6	970	160	148.7^de	9.5	1430	100	161.1^bc
IIAM-3	11.1	1280	40	118.9^bc	11.2	4410	370	426.8^bcde	7.3	950	110	145.2^bc
2010-3-1	6.8	2210	110	341.2^a	5.5	4710	720	987.3^a	6.7	2400	130	377.6^a
Beauregard^z	12.0	1490	80	130.3^bc	8.2	4520	730	640.2^bcd	7.8	1250	120	175.6^bc

^yRP = $Pf/FRM$, column means followed by the same letter were not different (P ≤ 0.05) according to Waller–Duncan multiple range test.

^zNematode-susceptible sweet potato standard cultivars.