Abstract
Growth and yield parameters of bambara groundnut [Vigna subterranea L. Verdc. landraces: White Seed Coat (WSC), Black Seed Coat (BSC) and Light Red Seed Coat (RSC)] were evaluated under organic and inorganic fertilization in order to determine the field performance, for the improvement of smallholder agriculture in Cameroon. Four fertilizer application rates (0, 3, 6 and 12 t ha-1) of Water Lettuce (WL) and Poultry Manure (PM) and four fertilization rates (0, 100, 150 and 200 kg ha-1) of N, P and K were used in a randomized complete block design experiment with four replications. Application of WL or PM at 12 t ha-1 significantly (p<0.001) increased leaf water content, plant dry weight and total chlorophyll content in RSC landrace. Application of PM at 12 t ha-1 increased significantly (p<0.001) the number of pods per plant, the number of seeds per pods, the 1000 grain weight, the grain yield and the pod yield in RSC landrace. Significant (p<0.001) increase in plant dry weight was observed in all landraces at 100 kg ha-1 N, P or K fertilization. The fertilization rates above 100 kg ha-1 N, P or K led to a decline in yield in all the bambara groundnut landraces compared to the optimum 100 kg ha-1 N, P or K fertilization. RSC landrace showed better growth and yield than WSC and BSC landraces revealing a greater response of this cultivar to fertilization.
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Claims 11
Claim · model-written summary
WL at 12 t ha-1 increased leaf water content, dry weight and chlorophyll in RSC.
- Taxon
- bambara groundnut
Vigna subterraneat0 - Material
- RSC landracee0
- Treatment
- WL or PM at 12 t ha-1e0
- Outcome
- leaf water content, plant dry weight and total chlorophyll contente0
- Direction
- increasede0
- Value
- 12 t ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Application of WL or PM at 12 t ha-1 significantly (p<0.001) increased leaf water content, plant dry weight and total chlorophyll content in RSC landrace”
t0“bambara groundnut”
Claim · model-written summary
PM at 12 t ha-1 increased leaf water content, dry weight and chlorophyll in RSC.
- Taxon
- bambara groundnut
Vigna subterraneat0 - Material
- RSC landracee0
- Treatment
- WL or PM at 12 t ha-1e0
- Outcome
- leaf water content, plant dry weight and total chlorophyll contente0
- Direction
- increasede0
- Value
- 12 t ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Application of WL or PM at 12 t ha-1 significantly (p<0.001) increased leaf water content, plant dry weight and total chlorophyll content in RSC landrace”
t0“bambara groundnut”
Claim · model-written summary
PM at 12 t ha-1 increased pod and seed counts and 1000 grain weight in RSC.
- Taxon
- bambara groundnut
Vigna subterraneat0 - Material
- RSC landracee0
- Treatment
- PM at 12 t ha-1e0
- Outcome
- number of pods per plant, the number of seeds per pods, the 1000 grain weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Application of PM at 12 t ha-1 increased significantly (p<0.001) the number of pods per plant, the number of seeds per pods, the 1000 grain weight, the grain yield and the pod yield in RSC landrace”
t0“bambara groundnut”
Claim · model-written summary
PM at 12 t ha-1 increased grain and pod yield in RSC.
- Taxon
- bambara groundnut
Vigna subterraneat0 - Material
- RSC landracee0
- Treatment
- PM at 12 t ha-1e0
- Outcome
- grain yield and the pod yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Application of PM at 12 t ha-1 increased significantly (p<0.001) the number of pods per plant, the number of seeds per pods, the 1000 grain weight, the grain yield and the pod yield in RSC landrace”
t0“bambara groundnut”
Claim · model-written summary
N fertilization at 100 kg ha-1 increased plant dry weight in all landraces.
- Taxon
- bambara groundnut
Vigna subterraneat0 - Treatment
- 100 kg ha-1 N, P or K fertilizatione0
- Outcome
- plant dry weighte0
- Direction
- increasee0
- Qualifier
- all landracese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Significant (p<0.001) increase in plant dry weight was observed in all landraces at 100 kg ha-1 N, P or K fertilization”
t0“bambara groundnut”
Claim · model-written summary
P fertilization at 100 kg ha-1 increased plant dry weight in all landraces.
- Taxon
- bambara groundnut
Vigna subterraneat0 - Treatment
- 100 kg ha-1 N, P or K fertilizatione0
- Outcome
- plant dry weighte0
- Direction
- increasee0
- Qualifier
- all landracese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Significant (p<0.001) increase in plant dry weight was observed in all landraces at 100 kg ha-1 N, P or K fertilization”
t0“bambara groundnut”
Claim · model-written summary
K fertilization at 100 kg ha-1 increased plant dry weight in all landraces.
- Taxon
- bambara groundnut
Vigna subterraneat0 - Treatment
- 100 kg ha-1 N, P or K fertilizatione0
- Outcome
- plant dry weighte0
- Direction
- increasee0
- Qualifier
- all landracese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Significant (p<0.001) increase in plant dry weight was observed in all landraces at 100 kg ha-1 N, P or K fertilization”
t0“bambara groundnut”
Claim · model-written summary
N rates above 100 kg ha-1 lowered yield relative to 100 kg ha-1.
- Taxon
- bambara groundnut
Vigna subterraneat0 - Treatment
- rates above 100 kg ha-1 N, P or Ke0
- Outcome
- yielde0
- Direction
- declinee0
- Comparator
- optimum 100 kg ha-1 N, P or K fertilizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The fertilization rates above 100 kg ha-1 N, P or K led to a decline in yield in all the bambara groundnut landraces compared to the optimum 100 kg ha-1 N, P or K fertilization”
t0“bambara groundnut”
Claim · model-written summary
P rates above 100 kg ha-1 lowered yield relative to 100 kg ha-1.
- Taxon
- bambara groundnut
Vigna subterraneat0 - Treatment
- rates above 100 kg ha-1 N, P or Ke0
- Outcome
- yielde0
- Direction
- declinee0
- Comparator
- optimum 100 kg ha-1 N, P or K fertilizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The fertilization rates above 100 kg ha-1 N, P or K led to a decline in yield in all the bambara groundnut landraces compared to the optimum 100 kg ha-1 N, P or K fertilization”
t0“bambara groundnut”
Claim · model-written summary
K rates above 100 kg ha-1 lowered yield relative to 100 kg ha-1.
- Taxon
- bambara groundnut
Vigna subterraneat0 - Treatment
- rates above 100 kg ha-1 N, P or Ke0
- Outcome
- yielde0
- Direction
- declinee0
- Comparator
- optimum 100 kg ha-1 N, P or K fertilizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The fertilization rates above 100 kg ha-1 N, P or K led to a decline in yield in all the bambara groundnut landraces compared to the optimum 100 kg ha-1 N, P or K fertilization”
t0“bambara groundnut”
Claim · model-written summary
RSC had better growth and yield than WSC and BSC under fertilization.
- Taxon
- bambara groundnut
Vigna subterraneat0 - Material
- RSC landracee0
- Outcome
- growth and yielde0
- Direction
- bettere0
- Comparator
- WSC and BSC landracese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“RSC landrace showed better growth and yield than WSC and BSC landraces”
t0“bambara groundnut”
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See all 8 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.