A weed survey of 100 fields for planting or ratoon sugar cane was conducted monthly from October 1999 to September 2001
Abstract: A weed survey of 100 fields for planting or ratoon sugar cane was conducted monthly from October 1999 to September 2001, at Esna district,Qena Governorate. Fifty two Species were observed in planting sugar cane (37 broadleaf and 15 grassy) belonging to 44 genra and 18 families. Fifty Species (35 broadleaf and 15 grassy) belonging to 42 genra and 18 families were recorded in ratoon sugar cane.
Gramineae and Cyperaceae families were representing narrow leaved weeds (Monocotyledone plants). Amaranthaceae, Chenopodiaceae, Compositae, Convolvulacea, Crucifera, Euphorbiaceae, Leguminosae, Malvaceae, Plantaginaceae, Polygonaceae, Portulacaceae, Primulaceae, Solanaceae, Tiliaceae and Umbelliferae were representing broad leaved weeds (Dicotyledone plants).
Dominant broad leaved weed species according to frequency % as well as relative abundance values in planting sugar cane were: Slender (Amaranthus viridis L.), Nettleleaf (Chenopodium murale L.), Field Bindweed (Convolvulus arvensis L) and Common Purslane (Portulaca oleracea L.) while in ratoon sugar cane were : Chenopodium murale L. and Portulaca oleracea L. Dominant broad leaved weed species of density(occurrence fields) in planting sugar cane were : Pigweed (Amaranthus cruentus L.), Greater ammi (Ammi majus L.), Chenopodium murale L., Convolvulus arvensis L. Sun spurge (Euphorbia helioscopia L.) and Portulaca oleracea L. while in ratoon sugar cane were : Amaranthus cruentus L., Chenopodium murale L., and Convolvulus arvensis L. Dominant narrow leaved weed species by the obtained frequency % as well as relative abundance values in planting and ratoon sugar cane were : Purple nutsedge (Cyperus rotundus L.). Dominant narrow leaved weed species of density(occurrence fields) in planting sugar cane were : Signal grass [Brachiaria eruciformis (Sibth& Sm) Grisb.] and Cyperus rotundus L. while no dominant narrow leaved weed species of density(occurrence fields) in retoon sugar cane.
Publication year 2002
Pages 389 – 410
Organization Name
serial title Bull. Fac. Agric., Cairo Univ.
Author(s) from ARC
Agris Categories Weeds and weed control
AGROVOC
TERMS		 Density. Sugarcane.
Proposed Agrovoc weed flora;frequency;relative abundance;planting and;
Publication Type Journal
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