Abstract
Condensed tannins (CT) present in Lotus spp., depending on their concentration in the plant, can prevent bloating and improve protein absorption in ruminants. With the objective to know the variability of this characteristic, the CT concentration (% dry matter basis) was determined by the butanol-HCl procedure in 13 cultivars of Lotus corniculatus L. (Lc) introduced from North and South America and Oceania, 11 accessions of Lotus tenuis Waldst. & Kit. ex Willd. (Lt), and 22 accessions of Lotus uliginosus Schkuhr (Lu) collected in Chile, from 32 to 38 S and 36 to 46 S, respectively. The field experiments, with two randomized complete blocks, were established in autumn 1998, in five different environments in the central-southern zone of Chile (clay soil, sandy soil, and three volcanic soils with different levels of water availability). The herbage sampling was conducted in spring-summer 1999-2000, when the plants were in full flowering. Significant differences between cultivars or accessions were found within each site, in total CT and/or in extractable or protein or fiber bound fractions of CT concentrations. The Lc and Lu genotypes showed high variability, with a range of 4.7 to 8.7% and 6.3 to 11.0%, and means of 6.1 and 8.2%, respectively, of total CT. The Lt general mean was 4.8%, considerably higher than the figures reported in the literature, and had low variability. This information will contribute to select genotypes for the improvement of this species by selection and breeding.
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Claims 5
Claim · model-written summary
Significant differences between cultivars or accessions were found within each site in total condensed tannins and/or in the extractable, protein-bound or fiber-bound fractions of CT concentration.
- Outcome
- total CT and/or in extractable or protein or fiber bound fractions of CT concentrationse1
- Qualifier
- within each sitee1
.jpg?width=60){kind=small}
LotusNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Condensed tannins (CT) present in Lotus spp.”
e1“Significant differences between cultivars or accessions were found within each site, in total CT and/or in extractable or protein or fiber bound fractions of CT concentrations”
Claim · model-written summary
Lotus corniculatus genotypes showed high variability in total CT, with a range of 4.7 to 8.7% and a mean of 6.1%.
- Taxon
- Lotus corniculatus
_Lotus_corniculatus_-_Plant_habit.jpg?width=60)
Lotus corniculatuse0 - Outcome
- total CTe1
- Value
- 4.7 to 8.7%e1
- Qualifier
- high variabilitye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Lotus_corniculatus_-_Plant_habit.jpg?width=500)
Verbatim
e0“13 cultivars of Lotus corniculatus L. (Lc)”
e1“The Lc and Lu genotypes showed high variability, with a range of 4.7 to 8.7% and 6.3 to 11.0%, and means of 6.1 and 8.2%, respectively, of total CT”
Claim · model-written summary
Lotus uliginosus genotypes showed high variability in total CT, with a range of 6.3 to 11.0% and a mean of 8.2%.
- Taxon
- Lotus uliginosus
Lotus uliginosuse0 - Outcome
- total CTe1
- Value
- 6.3 to 11.0%e1
- Qualifier
- high variabilitye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“22 accessions of Lotus uliginosus Schkuhr (Lu)”
e1“The Lc and Lu genotypes showed high variability, with a range of 4.7 to 8.7% and 6.3 to 11.0%, and means of 6.1 and 8.2%, respectively, of total CT”
Claim · model-written summary
The general mean total CT of Lotus tenuis was 4.8%, considerably higher than figures reported in the literature.
- Taxon
- Lotus tenuis
Lotus tenuise0 - Outcome
- general meane1
- Direction
- considerably highere1
- Value
- 4.8%e1
- Comparator
- figures reported in the literaturee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“11 accessions of Lotus tenuis Waldst. & Kit. ex Willd. (Lt)”
e1“The Lt general mean was 4.8%, considerably higher than the figures reported in the literature”
Claim · model-written summary
Lotus tenuis had low variability in CT concentration.
- Taxon
- Lotus tenuisLotus tenuise0
- Outcome
- low variabilitye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“11 accessions of Lotus tenuis Waldst. & Kit. ex Willd. (Lt)”
e1“had low variability”