Evaluation of Resistance and susceptibility of maize genotypes to Fusarium moniliforme on Fusarium ear rot
2004
Zamani, Majid | Haddadi, Hossein
In order to study of the variation among of different corn genotypes, an experiment was carried out at Karaj and Sari Staitions in 2002 and 2003. One of the most important diseases of corn in humid regions is Fusarium ear rot that caused to decrease of yield as quantity and quality. In this study with using Nail punch method, all of the ear was inoculated at flowering stage. Evaluation of genotypes with using disease severity index (1-6) was done at Physiological stage. In 2002, the results showed that hybrid No (29) by pedigree (K 74/1 x K 3673/1) and lines No (6-9-22) (K 18), (K 247/6-2-1-4-4), (KLM 75010/7-3-3-1-1) were resistant to ear rot where as this resistance can be related to low moisture of silk or genetic resistance of kernels at inoculation time. Meanwhile, the majority of crosses by K 18 and K 19 testers were categoried in moderately group. Also, the result of experiment in 2003 showed that, among of 30 new hybrids, (K 47/2-2-1-3-1 x K 74/1) , (K 47/2-2-1-4-1 x MO 17) and among of 33 lines (K 18), (K 3218), (A 676), (K 3530/1) were resistant to fusarium ear rot.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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