Sublethal application of various sulfonylurea and imidazolinone herbicides favors outcrossing and hybrid seed production in oilseed rape

Table 5 Effect of application of 100 mg/ha chlorsulfuron on environment sensitive male-sterile lines

Male sterile line	Gametocide treatment	Pollen viability at early flowering stage %	SD	Seed-set of out-crossing (g/plant)^c	SD	Hybridity of samples %^c	SD
Zhong9-A	untreated	5.46	4.38	17.79	1.10	97.50	1.55
Zhong9-A	treated	0.01^b	0.04	13.08^b	1.06	100.00	0.00
Q5005-A	untreated	10.08	4.31	20.19	1.08	92.50	5.06
Q5005-A	treated	0.05^b	0.07	20.75	1.86	98.69	1.88
Sapphire-A	untreated	2.07	2.07	19.37	1.28	96.40	1.82
Sapphire-A	treated	0.00	0.00	16.91^b	1.20	100.00	0.00
Zheyou50-A	untreated	17.20	6.28	21.46	1.12	90.13	3.40
Zheyou50-A	treated	0.00^b	0.00	20.73	0.74	99.73^a	0.47
SP2-A	untreated	30.21	14.47	22.82	1.51	85.85	3.99
SP2-A	treated	0.00^b	0.01	20.35^b	1.24	98.52^b	1.22
SP2S	untreated	59.51	10.45	20.53	1.72	96.88	2.39
SP2S	treated	0.01^b	0.03	19.03	1.53	100.00	0.00

The symbol ^a and ^b indicate significant difference at 0.05 and 0.01 level respectively. ^c The plants were pollinated by the paternal line BC530

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