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OCCURRENCE, MORPHOLOGY AND REPRODUCTION OF HETERODERA AVENAE ON WHEAT AND BARLEY IN SAUDI ARABIA

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dc.contributor.author A.S. AL-HAZMI
dc.contributor.author A.A.M. IBRAHIM
dc.contributor.author A.T. ABDUL-RAZIG
dc.date.accessioned 2023-03-06T07:54:55Z
dc.date.available 2023-03-06T07:54:55Z
dc.date.issued 1994-07-01
dc.identifier.citation Al-Hazmi, A. S., Ibrahim, A. A. M., & Abdul-Razig, A. T. (1994). Occurrence, morphology and reproduction of Heterodera avenae on wheat and barley in Saudi Arabia. Pakistan Journal of Nematology, 12(2), 117-129. en_US
dc.identifier.issn 0255-7576
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/17652
dc.description.abstract The cereal cyst nematode (CCN), Heterodera avenae was frequently found (52-90%) in wheat and barley fields in Hail, Gassim and Riyadh, the three major wheat-producing regions in Saudi Arabia. The nematode produced large number of cysts. In pot tests, with naturally infested field soil, the nematode reproduced readily on 8 wheat and barley cultivars or lines (RF 6.0-12.8). The highest rate or reproduction (P = 0.05) was found on barley cvs. CC 89 and Beecher (Rf = 12.8 and 10.0), with lowest in barley cvs. Justo and Lignee 640 (Rf = 6.8 and 6.0). Wheat cvs. and lines west bread, Yocora Rojo, El 93.4 and L9 were relatively intermediate (Rf = 7.0-7.9). The nematode was identified on the basis of cyst vulval cone structures and measurements, and separated from its closely relative H. mani by cyst colour, cyst vulva slit length, and shape of J2 basal knobs. Other morphometrics and morphological features of J2, gravid females, cysts, eggs and males typically fit well with H. avenae. en_US
dc.language.iso en en_US
dc.publisher Karachi, National Nematological Research Centre (NNRC), University of Karachi, en_US
dc.title OCCURRENCE, MORPHOLOGY AND REPRODUCTION OF HETERODERA AVENAE ON WHEAT AND BARLEY IN SAUDI ARABIA en_US
dc.type Article en_US


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