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EL-DAOUDI, Y., ABUEL- NAGA, S., SHAFIK, I., EL-NASHAR, F., MOSTAFA, E., KHALIFA, M. (1995). VIRULENCES AND PATHOGENICETY ASSOCIATIONS IN UCCINIA GRAMINIS f. sp. TRITICI IN EGYPT DURING 989/90 AND 1990/91 SEASONS. Egyptian Journal of Agricultural Research, 73(3), 575-586. doi: 10.21608/ejar.1995.441880
YOUSEF H. EL-DAOUDI; SALAH A. ABUEL- NAGA; IKHALS SHAFIK; FATEN K. EL-NASHAR; EL-SAYED E. MOSTAFA; MOHAMED O. KHALIFA. "VIRULENCES AND PATHOGENICETY ASSOCIATIONS IN UCCINIA GRAMINIS f. sp. TRITICI IN EGYPT DURING 989/90 AND 1990/91 SEASONS". Egyptian Journal of Agricultural Research, 73, 3, 1995, 575-586. doi: 10.21608/ejar.1995.441880
EL-DAOUDI, Y., ABUEL- NAGA, S., SHAFIK, I., EL-NASHAR, F., MOSTAFA, E., KHALIFA, M. (1995). 'VIRULENCES AND PATHOGENICETY ASSOCIATIONS IN UCCINIA GRAMINIS f. sp. TRITICI IN EGYPT DURING 989/90 AND 1990/91 SEASONS', Egyptian Journal of Agricultural Research, 73(3), pp. 575-586. doi: 10.21608/ejar.1995.441880
EL-DAOUDI, Y., ABUEL- NAGA, S., SHAFIK, I., EL-NASHAR, F., MOSTAFA, E., KHALIFA, M. VIRULENCES AND PATHOGENICETY ASSOCIATIONS IN UCCINIA GRAMINIS f. sp. TRITICI IN EGYPT DURING 989/90 AND 1990/91 SEASONS. Egyptian Journal of Agricultural Research, 1995; 73(3): 575-586. doi: 10.21608/ejar.1995.441880

VIRULENCES AND PATHOGENICETY ASSOCIATIONS IN UCCINIA GRAMINIS f. sp. TRITICI IN EGYPT DURING 989/90 AND 1990/91 SEASONS

Article 2, Volume 73, Issue 3, September 1995, Page 575-586  XML PDF (2.46 MB)
Document Type: Original Article
DOI: 10.21608/ejar.1995.441880
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Authors
YOUSEF H. EL-DAOUDI; SALAH A. ABUEL- NAGA; IKHALS SHAFIK; FATEN K. EL-NASHAR; EL-SAYED E. MOSTAFA; MOHAMED O. KHALIFA
Plant Pathology Institute, Agriculture Research Center, Giza, Egypt.
Abstract
Wheat stem rust survery during 1989/91 revealed the existence of 7 physiologic races i.e. 11,34,17,14,24,39 and 285 and 6 races i.e.11,118 , 15,17,24 and 34, respectively . Races,11,34,24 and 17 were the most frequent in both seasons .Virulence analysis of 96 and 78 stem rust single isolates on 12 wheat monogenic lines resulted in 37 and 41 virulence formulae during the two seasons , respectively . Most of the tested isolates were found virulent. virulences were recorded to sr30 ,11, 8a ,24 and 37 (Tt-2) in 1989/90 and to sr 24 ,37 Gt,8a,30 and 11 in 1990/91 . Sr 9e,26 and to some extent sr27 proved their effectiveness against stem rust population during both seaons.
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