| Titles |
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English :
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EVALUATION OF SOME FLAX GENOTYPES FOR POWDERY MILDEW RESISTANCE UNDER GREENHOUSE AND FIELD CONDITIONS
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Arabic :
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تقييم بعض التراكيب الو راثية للكتان من حيث المقاومة لمرض البياض الدقيقى
تحت ظروف الصوبة والحقل
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| Abstract |
A two-year greenhouse and field study was conducted at Giza and El-Kanater Agricultural Research Stations to (1) estimate heritability of were used as criteria to evaluate resistance , (2) assess resistance to powdery mildew of 19 flax genotypes , and (3) quantify the relationship between disease intensity ratings and agronomic traits. Genotype component of variance of disease incidence was highly significant(P<0.01) in two tests, while that of disease severity was highly significant (P<0.01) in one test and significant (P<0.05) in two tests. In addition, the highly significant and the significant genotype components of variance of disease incidence and disease severity were associated with high heritability and with high genetic Advance expected from selection. Significant differences in the disease level occurred between the 19 genotypes; however, some of these differences were inconsistent from one test to another , which may indicate the occurrence of genotype x environment interaction . most of the tested genotypes did not have satisfactory levels of powdery mildew resistance. Moreover, the powdery mildew resistance, which was expressed by few of the genotype, was environmentally sensitive. Most of the Significant correlation coefficients between disease intensity variables and agronomic traits were negative, which implies that selection for powdery mildew resistance would necessarily lead to an improvement in agronomic traits and vice versa.
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| Publication year |
2002
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| Pages |
7323-7333
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| Availability location |
معهد بحوث المحاصيل الحقلية- 9 ش الجامعة – الجيزة
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| Availability number |
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| Organization Name |
Field Crops Research Institute (FCRI)
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| serial title |
J . Agric . Sci Mansoura Univ November , 2002
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| Author(s) from ARC |
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| External authors (outside ARC) |
على عبد الهادي على
معهد بحوث أمراض النباتات – مركز البحوث الزراعية – الجيزة
محمود توفيق محمود منصور
معهد بحوث أمراض النباتات – مركز البحوث الزراعية – الجيزة
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| Agris Categories |
Agriculture - General aspects
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AGROVOC
TERMS |
Flax.
Greenhouses.
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| Publication Type |
Journal
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