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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/3114

Title: Effects of cereal cyst nematode on growth and physiological aspects of wheat under field conditions
Authors: Al-Yahya, F.A
Alderfasi, A.A.
Al-Hazmi, A.S.
Ibrahim, A.A.
Abdul-Razig, A.T.
Keywords: Helerodera avenae
Physiological aspects
CCN
Wheat
Nematode infection
Roots
Issue Date: 1998
Publisher: Pakistan Society of Nematologists
Citation: Pakistan Journal of Nematology: 16 (1); 55-62
Abstract: Effect of Helerodera avenae the cereal cyst nematode (CCN) on growth and physiologicalaspects of wheat cv. Yecora Rojo were studied under field conditions at Al-Kharj, near Riyadh, SaudiArabia. H. avenae at increasing initial population densities of 00, 75, 225 cysts / 250 cm soil, reducedthe number of tillers / plant and suppressed the fresh and dry weight of shoot as well as leaf area butincreased the water content of shoot at heading and dough stages. However, fresh and dry weight ofroot increased with nematode infection at heading stage and decreased at dough stage but an oppo-site trend was found with the water content of roots. Root : shoot ratio increased with nematodeinfection at heading stage. At dough stage, plant height, total chlorophyll content and interceptedlight by leaves were suppressed but temperature of plant canopy increased compared to the non-infected controls. Nematode infection caused a significant decrease in the concentrations of N, Fe,Mn, and Cu in shoots at dough stage but increased the concentration of Zn in the grains as comparedto the control.
URI: http://hdl.handle.net/123456789/3114
ISSN: 0255-7576
Appears in Collections:College of Foods And Agricultural Science

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