A comparative study on some post – emergence herbicides for the control of broomrape in faba bean fields.

Abstract: Field experiments were carried out at Sids Agricultural Research Station for the two successive seasons 1999/2000 and 2000/2001 to study the effect of some herbicidal treatments in comparison with the recommended herbicide (Roundup) on controlling Orobanche parasitic weed and faba bean productivity.
Oroban (herbicide) at the rate of (200, 300 and 400 cm3/fed) and Roundup at the rate of 75 cm3/fed. both applied two or three times significantly reduced the number of Orobanche spikes and their dry weight compared to the untreated check. Oroban at 400 cm3/fed. and 300 cm3/fed. applied two or three successive treatments gave the highest reduction in number and dry weight of Orobanche spikes. Chlorophyl (a) was significantly reduced in most treatments except Oroban at 200 cm3/fed. twice and Roundup treatments in both seasons, while chlorophyll (b) was reduced significantly in both seasons by all treatments, except those of Oroban at 200 and 300 cm3/fed. twice and thrice and roundup at 75 cm3/fed. twice in the second season. Carotenoid were significantly decreased in all treatments in the first season, however, Oroban at 200 cm3/fed. and Roundup at 75 cm3/fed. both applied twice showed insignificant decrease in caratenoids content in the second season. Plant height and plant weight increased in all treatments, except those of Oroban at 400 cm3/fed. thrice, however, plant weight was increased significantly in the second season by applying Oroban at 400 cm3/fed. thrice. Number of branches increased significantly by applying Oroban at 200 cm3/fed. twice and Roundup twice and thrice in both seasons, however, Oroban at 200 cm3/fed. thrice significantly increased the number of branches in the first season only. Number of pods as well as weight of pods/plant increased significantly in all treatments, except Oroban at 400 cm3/fed. twice and thrice in the number of pods and Oroban at 400 cm3/fed. thrice in the second season in the weight of pods. Weight of seeds/plant was significantly increased in all treatments, except Oroban at 400 cm3/fed. thrice in the second season. Seed yield was increased significantly in both seasons, except in Oroban treatment by 400 cm3/fed. thrice. The best of all concerning seed yield was Roundup thrice followed by Oroban at 200 cm3/fed. thrice and Oroban at 200 cm3/fed. twice in the first season, while in the second season Roundup thrice followed by Oroban at 200 cm3/fed. thrice and Roundup twice were the best treatments.
The results provide that it is possible to replace the recommended herbicide (Roundup at the rate of 75 cm3/fed.) by Oroban at the rate of 200 cm3/fed. two or three times without any significant loss of efficacy on Orobanche control or seed yield of faba bean.
Publication year 2002
Pages 65 - 96
Availability location المعمل المركزى لبحوث الحشائش 9ش الجامعة-جيزة0
Availability number
Organization Name
serial title Assiut Journal of Agricultural Science
ISSN 1110-0486
Author(s) from ARC
Agris Categories Weeds and weed control
AGROVOC
TERMS		 Faba beans. Herbicides.
Proposed Agrovoc control of broomrape;
Publication Type Journal
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