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SOLIMAN, A., SADEK, S. (1997). DIMBOA AS A CHEMICAL RESISTANCE FACTOR AGAINST THE EUROPEAN CORN BORER, OSTRINIA NUBILALIS (HUBNER) IN CERTAIN MAIZE GENOTYPES. Egyptian Journal of Agricultural Research, 75(1), 97-103. doi: 10.21608/ejar.1997.403148
ALI M. SOLIMAN; SADEK E. SADEK. "DIMBOA AS A CHEMICAL RESISTANCE FACTOR AGAINST THE EUROPEAN CORN BORER, OSTRINIA NUBILALIS (HUBNER) IN CERTAIN MAIZE GENOTYPES". Egyptian Journal of Agricultural Research, 75, 1, 1997, 97-103. doi: 10.21608/ejar.1997.403148
SOLIMAN, A., SADEK, S. (1997). 'DIMBOA AS A CHEMICAL RESISTANCE FACTOR AGAINST THE EUROPEAN CORN BORER, OSTRINIA NUBILALIS (HUBNER) IN CERTAIN MAIZE GENOTYPES', Egyptian Journal of Agricultural Research, 75(1), pp. 97-103. doi: 10.21608/ejar.1997.403148
SOLIMAN, A., SADEK, S. DIMBOA AS A CHEMICAL RESISTANCE FACTOR AGAINST THE EUROPEAN CORN BORER, OSTRINIA NUBILALIS (HUBNER) IN CERTAIN MAIZE GENOTYPES. Egyptian Journal of Agricultural Research, 1997; 75(1): 97-103. doi: 10.21608/ejar.1997.403148

DIMBOA AS A CHEMICAL RESISTANCE FACTOR AGAINST THE EUROPEAN CORN BORER, OSTRINIA NUBILALIS (HUBNER) IN CERTAIN MAIZE GENOTYPES

Article 10, Volume 75, Issue 1, March 1997, Page 97-103  XML PDF (1.84 MB)
Document Type: Original Article
DOI: 10.21608/ejar.1997.403148
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Authors
ALI M. SOLIMAN1; SADEK E. SADEK2
1Plant protection Research Institute, Agricultural Research Centre, Giza, Dokki, Egypt
2Field Crops Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt
Abstract
The chemical resistance factor DIMBOA, (2.4 dihydroxy­7methoxy-1.4 benzoxazin, 3 one), was determined in ten maize geno­types. Laboratory evaluation of resistance of these types against Ostri­nia nubilalis was recorded. The relationship between DIMBOA and resis­tance degree was estimated showing the following results. There is a positive correlation between DIMBOA absorption (at 266 nm) and larval mortality percentage in 50% of the tested inbred lines. Sixty per cent of the tested lines showd a positive correlation be­tween DIMBOA and per cent larval duration. Fifty per cent of these lines showed a negative correlation between DIMBOA and pupal weight. DIM-BOA correlated with the general rating of laboratory resistance in 60% of the tested maize inbred lines. DIMBOA may play an important role as a chemical resistance fac­tor in 60% of the tested inbred lines (Gm. 9, Gm, 6, Gm22, Gm. 14, Gm. 2 and Sids 34), while (Sids 7, Gm. 13, Gm. 4 and Gm. 31) were not af­fected by DIMBOA content.
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