Abstract
Algeria has a limited supply of fodder. Traditional methods of raising livestock rely on the exploitation of low-quality rangelands, fallow and natural pastures with forage crops receiving little attention. The population relies on imports to meet its protein needs. Indeed, fodder production is the primary lever for improving livestock nutrition and, as a result, the productivity of the livestock systems in question. It is also crucial to the sustainability of mixed systems that combine plant and animal production. The current study was conducted to evaluate the phenological stages, analyze the performances of fodder yield, grain yield and some of its components and determine the chemical composition of the species Vicia narbonensis L. in comparison with Vicia sativa L. in order to improve the fallow year in the cereal/fallow rotation and develop the marginal lands. Trials were conducted on the plots of FERHAT Abbas University Campus under the rainfed conditions in the semi-arid region of Setif during three growing seasons (2017-2020), using 10 ecotypes of narbon vetch and 2 ecotypes of common vetch (as control ecotypes) in a randomized complete block design with three replicates. Significant effects of the ecotype, the year and the ecotype x year interaction were found, as well as a great variability in the phenological stages, agronomic characteristics and chemical composition of the ecotypes studied. A significant positive relationship (p<0.05) was found between grain yield and dry matter yield and a significant negative relationship (p<0.05) was found between full flowering date and dry matter yield and grain yield. It seems that the early flowering ecotypes produce better yields than the late flowering ones in the semi-arid region of Setif.
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Claims 5
Claim · model-written summary
Ecotype, year and their interaction had significant effects on the narbon vetch traits measured.
- Taxon
- Vicia narbonensis
Vicia narbonensise0 - Outcome
- effects of the ecotype, the year and the ecotype x year interactione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the species Vicia narbonensis L. in comparison with Vicia sativa L”
e1“Significant effects of the ecotype, the year and the ecotype x year interaction were found”
Claim · model-written summary
Narbon vetch ecotypes showed great variability in phenological stages, agronomic characteristics and chemical composition.
- Taxon
- Vicia narbonensis
Vicia narbonensise0 - Outcome
- phenological stages, agronomic characteristics and chemical compositione2
- Qualifier
- great variabilitye2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the species Vicia narbonensis L. in comparison with Vicia sativa L”
e2“a great variability in the phenological stages, agronomic characteristics and chemical composition of the ecotypes studied”
Claim · model-written summary
Grain yield and dry matter yield were positively related in the narbon vetch ecotypes.
- Taxon
- Vicia narbonensis
Vicia narbonensise0 - Outcome
- dry matter yielde3
- Direction
- positivee3
- Comparator
- grain yielde3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the species Vicia narbonensis L. in comparison with Vicia sativa L”
e3“A significant positive relationship (p<0.05) was found between grain yield and dry matter yield”
Claim · model-written summary
Full flowering date was negatively related to dry matter yield and grain yield.
- Taxon
- Vicia narbonensis
Vicia narbonensise0 - Outcome
- dry matter yield and grain yielde4
- Direction
- negativee4
- Comparator
- full flowering datee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the species Vicia narbonensis L. in comparison with Vicia sativa L”
e4“a significant negative relationship (p<0.05) was found between full flowering date and dry matter yield and grain yield”
Claim · model-written summary
Early flowering narbon vetch ecotypes appear to produce better yields than late flowering ones in the semi-arid region of Setif.
- Taxon
- Vicia narbonensis
Vicia narbonensise0 - Material
- early flowering ecotypese5
- Outcome
- yieldse5
- Direction
- bettere5
- Comparator
- late flowering onese5
- Setting
- semi-arid region of Setife5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the species Vicia narbonensis L. in comparison with Vicia sativa L”
e5“It seems that the early flowering ecotypes produce better yields than the late flowering ones in the semi-arid region of Setif”