Abstract
This study investigates the response of faba bean and associated weeds to the low rates of glyphosate (1.4, 2.8, 5.6, 11.2, 22.4, 44.8, and 89.6 g a.i./feddan) corresponding to 0.3, 0.6, 1.2, 2.4, 4.8, 9.6, and 19.2% of the usage rate (0.467 kg/feddan), respectively. Two field experiments were conducted in this regard during two successive seasons (2008/2009-2009/2010). The plants were sprayed once and twice, 5 and 15 weeks after sowing. Generally, the one foliar application treatments were more effective in increasing faba bean growth than the two foliar application treatments. The best results obtained were for the concentration 11.2 g/feddan, especially sprayed as once. Plant height, fresh and dry weight as well as yield and its components were significantly increased in response. Total protein and carbohydrate contents were unaffected by the treatments. Weeds in converse were negatively affected recording the highest inhibition rate at the concentration 11.2 g sprayed also as once. It has been suggested that the low doses of glyphosate can induce faba bean growth, and this could indirectly affect weeds growth. (El-Shahawy, T.A. and Faida A.A. Sharara. Hormesis Influence of Glyphosate in Between Increasing Growth, Yield and Controlling Weeds in Faba Bean. Journal of American Science 2011;7(2):139-144). (ISSN: 1545-1003).
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Claims 7
Claim · model-written summary
One glyphosate foliar application increased faba bean growth more than two applications.
- Taxon
- faba bean
Vicia fabae0 - Treatment
- one foliar applicatione1
- Outcome
- faba bean growthe1
- Direction
- increasinge1
- Comparator
- two foliar application treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the response of faba bean and associated weeds to the low rates of glyphosate”
e1“Generally, the one foliar application treatments were more effective in increasing faba bean growth than the two foliar application treatments”
Claim · model-written summary
The 11.2 g/feddan glyphosate concentration gave the best results.
- Taxon
- faba beanVicia fabae0
- Treatment
- concentration 11.2 g/feddane2
- Outcome
- best results obtainede2
- Direction
- beste2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the response of faba bean and associated weeds to the low rates of glyphosate”
e2“The best results obtained were for the concentration 11.2 g/feddan, especially sprayed as once”
Claim · model-written summary
Low glyphosate rates significantly increased plant height, fresh weight and dry weight of faba bean.
- Taxon
- faba beanVicia fabae0
- Treatment
- low rates of glyphosatee0
- Outcome
- Plant height, fresh and dry weighte3
- Direction
- significantly increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the response of faba bean and associated weeds to the low rates of glyphosate”
e3“Plant height, fresh and dry weight as well as yield and its components were significantly increased in response”
Claim · model-written summary
Low glyphosate rates significantly increased yield and its components in faba bean.
- Taxon
- faba beanVicia fabae0
- Treatment
- low rates of glyphosatee0
- Outcome
- yield and its componentse3
- Direction
- significantly increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the response of faba bean and associated weeds to the low rates of glyphosate”
e3“Plant height, fresh and dry weight as well as yield and its components were significantly increased in response”
Claim · model-written summary
Low glyphosate rates did not change total protein and carbohydrate contents of faba bean.
- Taxon
- faba beanVicia fabae0
- Treatment
- low rates of glyphosatee0
- Outcome
- Total protein and carbohydrate contentse4
- Direction
- unaffectede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the response of faba bean and associated weeds to the low rates of glyphosate”
e4“Total protein and carbohydrate contents were unaffected by the treatments”
Claim · model-written summary
The 11.2 g/feddan glyphosate application sprayed once gave the highest weed inhibition rate.
- Taxon
- faba beanVicia fabae0
- Treatment
- concentration 11.2 g sprayed also as oncee5
- Interactor
- Weedse5weed
- Outcome
- inhibition ratee5
- Direction
- negatively affectede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the response of faba bean and associated weeds to the low rates of glyphosate”
e5“Weeds in converse were negatively affected recording the highest inhibition rate at the concentration 11.2 g sprayed also as once”
Claim · model-written summary
Low glyphosate doses may induce faba bean growth, which could indirectly affect weed growth.
- Taxon
- faba beanVicia fabae0
- Treatment
- low doses of glyphosatee6
- Outcome
- weeds growthe6
- Qualifier
- induce faba bean growthe6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the response of faba bean and associated weeds to the low rates of glyphosate”
e6“It has been suggested that the low doses of glyphosate can induce faba bean growth, and this could indirectly affect weeds growth”
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See all 66 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.