Abstract
Farmers who still cultivate bambara groundnut (Vigna subterranea) rely on landraces and seed retained from previous harvests. Given that the crop is typically cultivated in semi-arid regions, seed quality of farmers' retained seed might be compromised due to water stress experienced by maternal plants during production. The aim of this study was to determine the effect of water stress on maternal plants on subsequent seed quality of bambara groundnut. A single bambara groundnut landrace was characterised into four distinct selections based on seed coat and speckling colour. Initial seed quality (viability and vigour) was evaluated prior to planting seed in a field trial under irrigated and rainfed conditions. Final yield and yield components were determined at harvest. Thereafter, seed quality (viability and vigour) of progeny of different landrace selections was evaluated. Yield was lower under rainfed than irrigated conditions. Overall, subsequent seed quality showed improvement from initial seed quality of the original seedlot. Seed viability was higher in seeds produced under irrigated than rainfed conditions. Seed quality of bambara groundnut may be reduced underwater-limited production conditions. Seed enhancement practices such as priming may assist farmers to achieve better emergence. In the long term, seed production should be done under optimum conditions in order to achieve high-seed quality.
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Claims 6
Claim · model-written summary
Bambara groundnut yield was lower under rainfed than under irrigated conditions.
- Taxon
- bambara groundnut
Vigna subterraneae0 - Treatment
- rainfede1
- Outcome
- Yielde1
- Direction
- lowere1
- Comparator
- irrigated conditionse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Farmers who still cultivate bambara groundnut (Vigna subterranea) rely on landraces and seed retained from previous harvests”
e1“Yield was lower under rainfed than irrigated conditions”
Claim · model-written summary
Progeny seed quality of bambara groundnut showed improvement over the initial seed quality of the original seedlot.
- Taxon
- bambara groundnutVigna subterraneae0
- Outcome
- subsequent seed qualitye2
- Direction
- showed improvemente2
- Comparator
- initial seed quality of the original seedlote2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Farmers who still cultivate bambara groundnut (Vigna subterranea) rely on landraces and seed retained from previous harvests”
e2“Overall, subsequent seed quality showed improvement from initial seed quality of the original seedlot”
Claim · model-written summary
Seed viability of bambara groundnut was higher in seeds produced under irrigated than under rainfed conditions.
- Taxon
- bambara groundnutVigna subterraneae0
- Treatment
- seeds produced under irrigatede3
- Outcome
- Seed viabilitye3
- Direction
- highere3
- Comparator
- rainfed conditionse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Farmers who still cultivate bambara groundnut (Vigna subterranea) rely on landraces and seed retained from previous harvests”
e3“Seed viability was higher in seeds produced under irrigated than rainfed conditions”
Claim · model-written summary
Seed quality of bambara groundnut may be reduced under water-limited production conditions.
- Taxon
- bambara groundnutVigna subterraneae4
- Treatment
- underwater-limited production conditionse4
- Outcome
- Seed qualitye4
- Direction
- reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Seed quality of bambara groundnut may be reduced underwater-limited production conditions”
Claim · model-written summary
Seed enhancement practices such as priming may help farmers achieve better emergence of bambara groundnut.
- Taxon
- bambara groundnutVigna subterraneae0
- Treatment
- priminge5
- Outcome
- better emergencee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Farmers who still cultivate bambara groundnut (Vigna subterranea) rely on landraces and seed retained from previous harvests”
e5“Seed enhancement practices such as priming may assist farmers to achieve better emergence”
Claim · model-written summary
Seed production of bambara groundnut should be done under optimum conditions to achieve high-seed quality.
- Taxon
- bambara groundnutVigna subterraneae0
- Outcome
- high-seed qualitye6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Farmers who still cultivate bambara groundnut (Vigna subterranea) rely on landraces and seed retained from previous harvests”
e6“In the long term, seed production should be done under optimum conditions in order to achieve high-seed quality”
The same questions in other papers
rainfall · yield · Vigna subterranea (Bambara groundnut)Results agree
1 paper in the same direction as this paper
- negative
irrigation · growth · Vigna subterranea (Bambara groundnut)Results agree
1 paper in the same direction as this paper
- positive
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.