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ARS Home » Northeast Area » Beltsville, Maryland (BARC) » Beltsville Agricultural Research Center » Mycology and Nematology Genetic Diversity and Biology Laboratory » Research » Publications at this Location » Publication #367630
Research Project: Molecular Systematics, Identification, Biology, and Management of Crop-Parasitic Nematodes

Location: Mycology and Nematology Genetic Diversity and Biology Laboratory

Title: Reaction of oat and wheat cultivars and Poaceous grasses to the cyst Nematode Heterodera goldeni

Author
item IBRAHIM, IBRAHIM - Alexandria University Of Egypt
item AWD-ALLAH SHERIN, FADL - Agricultural Research Center Of Egypt
item Handoo, Zafar
item KHALIL, ASHRAF - Agricultural Research Center Of Egypt
item KANTOR, MIHAIL - Orise Fellow

Submitted to: Nematropica
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 9/30/2019
Publication Date: 1/20/2020
Citation: Ibrahim, I.K., Awd-Allah Sherin, F., Handoo, Z.A., Khalil, A.E., Kantor, M. 2019. Reaction of oat and wheat cultivars and Poaceous grasses to the cyst Nematode Heterodera goldeni. Nematropica. 49:189-193.

Interpretive Summary: Plant-parasitic nematodes are microscopic worms that feed on plants and cause an estimated ten billion dollars of crop losses each year in the United States and 100 billion dollars globally. Cyst nematodes are the most economically important groups of plant-parasitic nematodes worldwide. One problem with cyst nematodes is that growers have no idea of the host range of nematodes on specific crop cultivars. In the present study, ARS and Alexandria University scientists examined the reactions of oats, eight wheat cultivars and five weedy grasses to the cyst nematode Heterodera goldeni in the greenhouse. The results showed that oats (Avena sativa (L.) cv. Baladi, the common wheat (Triticum vulgare Vill.) cvs. Gemmieza 9, Gemmieza 10, Giza 168, Sids 1, Sakha 93, Sakha 94 and the durum wheat (T. durum Desf.) cvs. Bani Sewef 1 and Sohag 3 were susceptible to H. goldeni. In another test, the results indicated that wild oats (Avena fatua (L.)), Bermuda grass (Cynodon dactylon (L.) Pers.), jungle-rice (Echinocloa colonum (L.) Link.), barnyard grass (E. crus-galli (L.) Beauv.) and canary grass (Phalaris minor Retz.) were also susceptible to H. goldeni. The tested oat and wheat cultivars and weedy grasses were considered good hosts for H. goldeni because it infected and reproduced successfully on all the tested plants. Infection with H. goldeni significantly reduced the shoot and root dry weights of the tested oat and wheat cultivars. The results are significant because they provide the first evidence that the specific tested cultivars are resistant or susceptible to the nematode species examined. This research will be of use to scientists, growers and extension agencies involved in root-knot nematode research and control.

Technical Abstract: The reaction of oats, eight wheat cultivars and five weedy grasses to the cyst nematode Heterodera goldeni was studied in the greenhouse. The results showed that oats (Avena sativa (L.)) cv. Baladi, the common wheat (Triticum vulgare Vill.) cvs. Gemmieza 9, Gemmieza 10, Giza 168, Sids 1, Sakha 93, Sakha 94 and the durum wheat (T. durum Desf.) cvs. Bani Sewef 1 and Sohag 3 were susceptible to H. goldeni. In another test, the results indicated that the weedy grasses wild oats (Avena fatua (L).), Bermuda grass (Cynodon dactylon (L.) Pers.), jungle-rice (Echinocloa colonum (L.) Link.), barnyard grass (E. crus-galli (L.) Beauv.) and canary grass (Phalaris minor Retz.) were susceptible to H. goldeni. The tested oat, wheat cultivars and weedy grasses were considered good hosts for H. goldeni because it infected and reproduced successfully on all the tested plants. Infection with H. goldeni significantly reduced the shoot and root dry weights of the tested oat and wheat cultivars.