Evaluation of the reaction of early maturing maize genotypes to common smut using artificial inoculation
Zamani, M., Seed and Plant Improvement Institute (SPII), Karaj (Iran Islamic Republic) | Rahjoo, V., Seed and Plant Improvement Institute (SPII), Karaj (Iran Islamic Republic) | Parchamian, M., Islamic Azad University, Damghan (Iran Islamic Republic). Plant Protection Department
In order to study of the resistance of early maize genotypes, 44 lines, and hybrids in 2008 and 30 genotypes in 2009 in RCBD were conducted at Karaj and Esfahan Stations. All of the ears were inoculated by tip injection method at suitable time. Inoculation was carried out with syringe (3ml/each ear) at silking stage. Evaluation was done on ears 3-4 weeks after inoculation. The results of variance analysis and mean comparison showed that there is a different reaction among material to disease. In this study, after harvesting of ears, the resistance of each genotype was determined based on disease severity index (0-7). Among examined lines in 2008, line no. (41) (KE 77004/1-1-1) was specified as susceptible and no. (28 and 42) (KE 77003/1-8-1) and (37A) as resistant lines. Also among hybrids, K SC 400 was identified as resistant hybrid. Also, among lines in 2009, line no. (29) (KE77004/1-1-1) was specified as susceptible and line no. (27) (KE77005/4) as resistant line respectively. Among hybrids, hybrid no. (9) (KE77006/3 ×K1263/1) evaluated as resistant hybrid.
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