Pathogenic variation of Ascochyta rabiei in North-East Bulgaria
Keywords:
Ascochyta rabiei; pathogenic variation; virulenceAbstract
A limiting factor of growing chick pea in Bulgaria and in other regions worldwide is its susceptibility to Ascochyta blight. The disease is caused by the phyto pathogenic fungus Ascochyta rabiei (Pass.) Labrousse (teleomorphDidymella rabiei=Mycosphaerella rabiei(Kovachevsky) v. Arx). The investigation involved 20 isolates of Ascochyta rabiei from the collection of DAI – General Toshevo collected from three different fields in North-East Bulgaria during 1997 – 1999. The virulence of the isolates was determined with the help of eight lines (ILC 202, ILC 2956, ILC 3279, ICC 76, ICC 607, ICC 4324, ICC 2165, ICC 1467) and one chick pea cultivar (Balkan). Based on the reaction of the used genotypes, the investigated isolates of Asc. rabiei were grouped into seven pathotypes (Pt). Pt 1 had lowest virulence, being virulent only to three lines. Pt 5 had highest virulence. Pathotype 5 was found in all investigated crops. The study revealed that the Asc. rabiei population in North-East Bulgaria consisted of various pathotypes.
References
Ковачевски, И. 1936. Чернилка по нахута (My cosphaerella rabiei N. SP.) София.
Станоева, Й., И. Киряков. 2000. Проучване реакцията на интродуцирани образци нахут към причинителя на аскохитозата Ascochyta rabiei (Pass.) Labrouse. Научни съобщения на СУБ, клон Добрич, т. 2: 139-142
Basandrai, A. K., S. Pande, G. Krishna Kishore, J. H. Crouch and D. Basandrai. 2005. Cultural, Morphologycal and Pathologycal Variation in Indian Iso lates of Ascochyta rabiei, the Chickpea Blight Patho gen. Plant Pathol. J., 21(3): 207-213
Chongo, G., Gossen, B. D., Buchwaldet, L., Adhikari, T. and Rimmer, S. R. 2004. Genetic diversi ty of Ascochyta rabiei in Canada. Plant Dis., 88: 4-10
Dolar, F. S., A. Gϋrcan. 1992. Pathogenic variabil ity and race appearance of Ascochyta rabiei (Pass.) Labr. In Turkey. J. Tour. Phythopath., 21: 61-65
Grewal, J. S. 1981. Evidence of physiologic races in Ascochyta rabiei of chickpea, Proc. of the Workshop on Ascochyta blight and Winter Sowing of Chickpeas. ICARDA, Syria.
Hawere, M. P. 1988. Disease of chickpea. In: (Al len and Lenne Eds.) The pathology of food and pas ture legumes. CBA, 488-494
Jan, H. and Wiese, M. V. 1991. Virulence forms of Ascochyta rabiei affecting chickpea in the Palouse. Plant Dis., 75: 904-906
Kaiser, W. J. 1981. Control of Ascochyta blight of chickpea through clean seed. Proc. of the Workshop on Ascochyta Blight and Winter and Sowing of Chick pea, Syria, p. 117-122
Kaiser, W. J. and F. J. Muehlbauer. 1988. An autbreak of Ascochyta blight of chickpea in the Pa cific Northwest, USA in 1987. International Chickpea Newsletter, 18: 16-17
Katiyar, R. P. and O. P. Sood. 1985. Screening chickpea for resistance to ascochyta blight. Interna tional Chickpea Newsletter, 13: 19-20
Maden, S., F. S. Dolar, I. Babalioğullu, H. Bay raktar and F. Demerci. 2004. Determination of patho genic variability of Ascochyta rabiei oand reactions of chickpea cultivars against the pathotypes in Turkey. 5th European Conference on Grain Legumes Handbook, 307. 7-11 June, Dijon, France.
Reddy, M. V. and Kabbabeh, S. 1985. Pathogenic variability in Ascochyta rabiei (Pass.) Lab. In Syria and Lebanon. Phythopathol. Mediterr., 24: 265-266
Singh, K. B. and M. V. Reddy. 1989. Genetics of resistance to Ascochyta blight in four chickpea lines. Crop Science, 29: 657-659
Singh, K. B. and M. V. Reddy. 1993. Resistance to six races of Ascochyta rabiei in the World Germplasm Collection of Chickpea. Crop Scince, 33: 186-189
Singh, K. B. and M. V. Reddy. 1996. Improving chickpea wield by incorporating resistance to asco chyta blight. Theoretical and Applied Genetics, 92: 509-515
Vir, S. and J. S. Grewal. 1974. Physiological spe cialization in Ascochyta rabiei, the causal organism of gram blight. Ind. Phytopath., 27: 255-360
Wiese, M. V., W. J. Kaiser, L. J. Smith and F. J. Muehlbauer. 1995. Ascochyta blight of chickpea. Uni versity of Idaho, Moscow, Idaho CIS 886.
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