نویسندگان
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
In order to determine the reaction of some selected maize lines and cultivars to s outhern corn leaf blight (SCLB), 17 lines and cultivars were evaluated in RCBD with 2 and 4 replications in 1999 and 2000, respectively at Gharakhil Reserech Station. In this study, each plant was inoculated at 3-4 leaf stage with a suspension of spore (C= 3 x 104 spore/ml) by syringe and once again at 6-8 leaf stage with infected sorghum seeds (10-15 kernel/whorl) by Bazooka. The percentage of infected area on the leaves of different cultivars were scored two times by 0-5 and 0-100 scales, as disease severity index, at anthesis and two weeks after on. Results showed a significant difference among lines and cultivars to SCLB. Hybrids showed to be more resistant than lines. Meanwhile, line K3547/212 was highly resistant and K3653/111 highly susceptible. Among cultivars, K3547/212 MO17 and K SC 604 were highly resistant. Commercial lines, MO 17, K18 and K19 were moderately resistant and B73 susceptible.
کلیدواژهها [English]
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