Influence of Various Wheat Genotypes and Agriculture Practices on Powdery Mildew Incidence | ||
| Journal of Applied Plant Protection | ||
| Article 1, Volume 3, Issue 1, June 2015, Pages 1-7 PDF (1.25 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/japp.2015.7707 | ||
| Authors | ||
| Ahmed Abdullah* 1; Tarek Bayoumi2; Waleed Shaban1 | ||
| 1Department of Agricultural Botany, Faculty of Agriculture, Suez Canal University, Ismailia, Egypt | ||
| 2Department of Agronomy, Faculty of Agriculture, Suez Canal University, Ismailia, Egypt | ||
| Abstract | ||
| A total of 61 wheat genotypes were screened for powdery mildew disease under natural infection during two seasons 2012/2013 and 2013/2014 in El Quantra Shark. Genotypes were sown in randomized complete block design in three replicates. The disease severity for all genotypes was measured to estimate the reaction of each genotype to infect with powdery mildew. The first scoring was done when the majority of genotypes were in the late booting stage. The second experiment to examine the effect of nitrogen fertilization and water deficiency on severity of powdery mildew disease and loss of yield. The experiment was carried out at the experimental Farm of Agronomy Department Fac., Agric., Suez Canal Univ., and Ismailia on Sids 12 wheat cultivar. Irrigation allocated at the main plots and the nitrogen fertilization allocated in sub main plots. Twelve lines showed moderately resistant reaction while thirty eight lines showed moderately susceptible and eleven lines recorded susceptible reaction to infect with Blumeria graminis tritici. The genotypes 2, 10, 11, Sakha 94, Sids 12, 66, 82, 89, 91 and 102 recorded the higher yields. Result indicates that increasing nitrogen dose from low (50 kg/fad. N) up to high N (100 kg/fad. N) had a clear effect on powdery mildew infection. | ||
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