Abstract
Three purple prairie clover (PPC; Dalea purpurea Vent.) varieties, namely Common seed (CS), AC Lamour (ACL) and Bismarck (BIS), were established in plots of irrigated land (rain-fed plus irrigation, Lethbridge, AB) and dryland (rain-fed only, Swift Current, SK) to assess its agronomic characteristics and nutritive value under different ecoclimate and growing conditions in Western Canada. Each seed source was replicated in four test plots arranged as a randomized complete block design at each experimental site. Forage mass on dry matter (DM) basis, canopy height, proportions of leaf and stem and nutritive value were determined at vegetative (VEG), full flower (FF) and late flower (LF) phenological stages. The forage masses of the three PPC varieties were similar (p < 0.05) at each phenological stage with the mean values for VFG, FF and LF being 4739, 4988 and 6753 kg DM/ha under the Lethbridge irrigated conditions, and 1423, 2014 and 2297 kg DM/ha under the Swift Current dryland conditions. The forage mass was higher (p < 0.001) under Lethbridge irrigation than under Swift Current dryland conditions and increased (p < 0.05) with maturity. The three varieties had similar concentrations of organic matter (OM), neutral detergent fibre (NDF), acid detergent fibre (ADF) and crude protein (CP) and in vitro DM digestibility (DMD) at each phenological stage, but CP concentration and in vitro DMD decreased (p < 0.001) whilst NDF and ADF concentration increased (p < 0.001) with maturity. Purple prairie clover grown at Lethbridge irrigated land had higher (p < 0.001) DMD, OM and CP, but lower (p < 0.001) NDF, ADF and condensed tannin concentrations than that grown at Swift Current dryland conditions. These results indicate that PPC has great potential as an alternative legume forage for the cattle industry.
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Claims 12
Claim · model-written summary
Three varieties had similar forage mass at each stage.
- Taxon
- purple prairie clover
Dalea purpureae1 - Material
- three PPC varietiese0
- Outcome
- forage massese0
- Direction
- similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The forage masses of the three PPC varieties were similar (p < 0.05) at each phenological stage”
e1“purple prairie clover (PPC; Dalea purpurea Vent.)”
Claim · model-written summary
At irrigated Lethbridge, mean forage masses at VEG, FF and LF were 4739, 4988 and 6753 kg DM/ha.
- Taxon
- purple prairie cloverDalea purpureae1
- Outcome
- mean values for VFG, FF and LFe0
- Value
- 4739, 4988 and 6753 kg DM/hae0
- Setting
- Lethbridge irrigated conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mean values for VFG, FF and LF being 4739, 4988 and 6753 kg DM/ha under the Lethbridge irrigated conditions”
e1“purple prairie clover (PPC; Dalea purpurea Vent.)”
Claim · model-written summary
At dryland Swift Current, mean forage masses at VEG, FF and LF were 1423, 2014 and 2297 kg DM/ha.
- Taxon
- purple prairie cloverDalea purpureae1
- Outcome
- 1423, 2014 and 2297 kg DM/hae0
- Value
- 1423, 2014 and 2297 kg DM/hae0
- Setting
- Swift Current dryland conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1423, 2014 and 2297 kg DM/ha under the Swift Current dryland conditions”
e1“purple prairie clover (PPC; Dalea purpurea Vent.)”
Claim · model-written summary
Forage mass was higher under Lethbridge irrigation than Swift Current dryland.
- Taxon
- purple prairie cloverDalea purpureae1
- Outcome
- forage masse0
- Direction
- highere0
- Comparator
- Swift Current dryland conditionse0
- Setting
- Lethbridge irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The forage mass was higher (p < 0.001) under Lethbridge irrigation than under Swift Current dryland conditions”
e1“purple prairie clover (PPC; Dalea purpurea Vent.)”
Claim · model-written summary
Forage mass increased with maturity.
- Taxon
- purple prairie cloverDalea purpureae2
- Organ / stage
- maturitye0
- Outcome
- forage masse1
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased (p < 0.05) with maturity”
e1“The forage mass was higher”
e2“purple prairie clover (PPC; Dalea purpurea Vent.)”
Claim · model-written summary
Varieties had similar OM, NDF and ADF concentrations at each stage.
- Taxon
- purple prairie cloverDalea purpureae1
- Material
- three varietiese0
- Outcome
- organic matter (OM), neutral detergent fibre (NDF), acid detergent fibre (ADF)e0
- Direction
- similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The three varieties had similar concentrations of organic matter (OM), neutral detergent fibre (NDF), acid detergent fibre (ADF) and crude protein (CP) and in vitro DM digestibility (DMD) at each phenological stage”
e1“purple prairie clover (PPC; Dalea purpurea Vent.)”
Claim · model-written summary
Varieties had similar crude protein and digestibility at each stage.
- Taxon
- purple prairie cloverDalea purpureae1
- Material
- three varietiese0
- Outcome
- crude protein (CP) and in vitro DM digestibility (DMD)e0
- Direction
- similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The three varieties had similar concentrations of organic matter (OM), neutral detergent fibre (NDF), acid detergent fibre (ADF) and crude protein (CP) and in vitro DM digestibility (DMD) at each phenological stage”
e1“purple prairie clover (PPC; Dalea purpurea Vent.)”
Claim · model-written summary
Crude protein and digestibility decreased with maturity.
- Taxon
- purple prairie cloverDalea purpureae1
- Organ / stage
- maturitye0
- Outcome
- CP concentration and in vitro DMDe0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CP concentration and in vitro DMD decreased (p < 0.001) whilst NDF and ADF concentration increased (p < 0.001) with maturity”
e1“purple prairie clover (PPC; Dalea purpurea Vent.)”
Claim · model-written summary
NDF and ADF concentrations increased with maturity.
- Taxon
- purple prairie cloverDalea purpureae1
- Organ / stage
- maturitye0
- Outcome
- NDF and ADF concentratione0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NDF and ADF concentration increased (p < 0.001) with maturity”
e1“purple prairie clover (PPC; Dalea purpurea Vent.)”
Claim · model-written summary
Irrigated Lethbridge clover had higher digestibility, OM and CP than dryland Swift Current clover.
- Taxon
- Purple prairie cloverDalea purpureae0
- Outcome
- DMD, OM and CPe0
- Direction
- highere0
- Comparator
- Swift Current dryland conditionse0
- Setting
- Lethbridge irrigated lande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Purple prairie clover grown at Lethbridge irrigated land had higher (p < 0.001) DMD, OM and CP, but lower (p < 0.001) NDF, ADF and condensed tannin concentrations than that grown at Swift Current dryland conditions”
Claim · model-written summary
Irrigated Lethbridge clover had lower NDF, ADF and tannins than dryland Swift Current clover.
- Taxon
- Purple prairie cloverDalea purpureae0
- Outcome
- NDF, ADF and condensed tannin concentrationse0
- Direction
- lowere0
- Comparator
- Swift Current dryland conditionse0
- Setting
- Lethbridge irrigated lande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Purple prairie clover grown at Lethbridge irrigated land had higher (p < 0.001) DMD, OM and CP, but lower (p < 0.001) NDF, ADF and condensed tannin concentrations than that grown at Swift Current dryland conditions”
Claim · model-written summary
Authors conclude prairie clover could serve as alternative cattle forage.
- Taxon
- purple prairie cloverDalea purpureae1
- Outcome
- potential as an alternative legume forage for the cattle industrye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PPC has great potential as an alternative legume forage for the cattle industry”
e1“purple prairie clover (PPC; Dalea purpurea Vent.)”