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Damage Threshold Of Meloidogyne Incognita To Sugarbeet Under Greenhouse And Field Conditions
Ahmed M. Korayem
Plant Pathology Department, National Research Centre, Dokki, Cairo, Egypt
Abstract
The root -knot nematode especially Meloidogyne incognita is known as a sugar beet pest in many regions of Egypt. The tolerance limit (the level of the initial nematode population below which damage is not measurable) as well as estimating of yield losses caused by M. incognita on sugar beet were not determined under field condions of Egypt. Accordingly, two sugar beet cultivars "Oscarpoly" and "Raspoly" were tested under greenhouse and field conditions. In the greenhouse test, no relation between plant growth or total soluble solids (TSS) and nematodes inoculum level was found for both cultivars, up to 10J2/g soil, when infestation occurred 30 days after germination. Under field conditions, the two cultivars tolerated nematode infestation up to 10 J2 /g soil, when infestation occurred 30 days after germination. At an infestation level of 15 J2/g soil, the growth parameters were significantly decreased for cv "Oscarpoly" but not for "Raspoly", but the TSS (%). was not affected in both cultivars.
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| New Publications |
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The Arab Scientists in Cooperation with The High Institute of Marine Research. Publish all the researches abstracts, which presented in The Regional Workshop on Marine Sciences and Natural Resources, Tishreen University, Lattakia, Syria, 25-26 May 2004.
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| New Publications |
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The Arab Scientists in Cooperation with The Egyptian Society for Biological Control of Pests . Publish all the researches abstracts, which presented in The First Arab Conference of Applied Biological Pest Control, Cairo, Egypt, 5-7 April 2004.
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| Conferences, Fez |
The First International Symposium on Environnement protection for development Biotechnological aspects. Fez, December
15 – 17, 2004.
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| Conferences, Syria |
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The Second Syrian-Egyptian conference in the Agriculture and Food.
Agriculture Faculty, Al-Baath university, Homs, Syria. 25-28 April, 05
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| Conference,Yemen |
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Current Status of Plant Protection in Yemen and Future Strategy.
Faculty of Agriculture, Sana'a University, Sana'a, yemen. December 18-20/2004
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| Conferences Canada |
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The 9th International Conference of the Orthopterists’ Society
Canada, on August 14 19, 2005
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| Conferences, Egypt |
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The First Arab Conference on Applications of Biological Control of Pests in Arab Countries
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| Workshop,Lebanon |
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New Workshop
Middle-East Academy for Medicine of Ageing
First Annual Middle-East Age & Aging Meeting
8-11 April, 2004
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| Publications |
Arab Society for Plant Protection (ASPP) in Cooperation with The Arab Scientists
Publish all the researches abstracts, which presented in the Eighth Arab Congress of
Plant Protection, held in Faculty of Agriculture, Omar Al-Mukhtar University, El-beida
City, Libya, October 12-16,2003
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