Abstract
Selection for seed yield (visual in the F 2 , visual and plot yield from the F 3 to F 5 , and yield tests in F 6 ) was carried out in two crosses of common bean (Phaseolus vulgaris L.) in high and low soil fertility environments at CIAT-Quilichao, Colombia. Parents were small-seeded and tolerant to low soil phosphorus, possessed indeterminate bush growth habit, and belonged to lowland tropical gene pools of Middle America. The mean yield of selected lines from low (LFS) and high (HFS) soil fertility environments was significantly higher than the mean of the parents in both crosses when tested in high fertility (HF) but not in low fertility (LF). The highest yielding LFS and HFS lines from A 286 × (G 5059 × A 80) and the LFS line from A 286 × ICA Pijao outyielded the best check cultivar, Carioca, in HF. No line yielded significantly more than A 286, the best parent used in both crosses. The mean effect of fertilizer levels on selection for seed yield was nonsignificant. Lines selected under two environments showed similar but average response and high stability of performance under variable environments. Low soil fertility accelerated maturity and reduced 100-seed weight and seed yield.Key words: Phaseolus vulgaris, bean (small-seeded common), selection for yield, soil fertility, Middle American gene pools, regression coefficient
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Claims 9
Claim · model-written summary
Selected lines from low- and high-fertility environments yielded significantly more than their parents in high-fertility tests, but not low-fertility tests.
- Taxon
- COMMON BEAN
Phaseolus vulgarist0 - Material
- selected linese0
- Outcome
- mean yielde0
- Direction
- highere0
- Qualifier
- but not in low fertility (LF)e0
- Comparator
- parentse0
- Setting
- high fertility (HF)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mean yield of selected lines from low (LFS) and high (HFS) soil fertility environments was significantly higher than the mean of the parents in both crosses when tested in high fertility (HF) but not in low fertility (LF).”
t0“COMMON BEAN”
Claim · model-written summary
Top LFS and HFS lines from A 286 × (G 5059 × A 80) outyielded Carioca in high fertility.
- Taxon
- COMMON BEANPhaseolus vulgarist0
- Material
- LFS and HFS lines from A 286 × (G 5059 × A 80)e0
- Outcome
- highest yieldinge0
- Direction
- outyieldede0
- Comparator
- Cariocae0
- Setting
- HFe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yielding LFS and HFS lines from A 286 × (G 5059 × A 80) and the LFS line from A 286 × ICA Pijao outyielded the best check cultivar, Carioca, in HF.”
t0“COMMON BEAN”
Claim · model-written summary
The LFS line from A 286 × ICA Pijao outyielded Carioca in high fertility.
- Taxon
- COMMON BEANPhaseolus vulgarist0
- Material
- LFS line from A 286 × ICA Pijaoe0
- Outcome
- highest yieldinge0
- Direction
- outyieldede0
- Comparator
- Cariocae0
- Setting
- HFe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yielding LFS and HFS lines from A 286 × (G 5059 × A 80) and the LFS line from A 286 × ICA Pijao outyielded the best check cultivar, Carioca, in HF.”
t0“COMMON BEAN”
Claim · model-written summary
No line significantly outyielded the parent A 286.
- Taxon
- COMMON BEANPhaseolus vulgarist0
- Material
- linee0
- Outcome
- yieldede0
- Direction
- No line yielded significantly moree0
- Comparator
- A 286e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No line yielded significantly more than A 286, the best parent used in both crosses.”
t0“COMMON BEAN”
Claim · model-written summary
Fertilizer level had a nonsignificant mean effect on selection for seed yield.
- Taxon
- COMMON BEANPhaseolus vulgarist0
- Treatment
- fertilizer levelse0
- Outcome
- selection for seed yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mean effect of fertilizer levels on selection for seed yield was nonsignificant.”
t0“COMMON BEAN”
Claim · model-written summary
Lines selected in the two environments had similar average response and high performance stability across variable environments.
- Taxon
- COMMON BEANPhaseolus vulgarist0
- Outcome
- high stability of performancee0
- Setting
- variable environmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lines selected under two environments showed similar but average response and high stability of performance under variable environments.”
t0“COMMON BEAN”
Claim · model-written summary
Low soil fertility accelerated common bean maturity.
- Taxon
- COMMON BEANPhaseolus vulgarist0
- Treatment
- Low soil fertilitye0
- Outcome
- maturitye0
- Direction
- acceleratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low soil fertility accelerated maturity and reduced 100-seed weight and seed yield.”
t0“COMMON BEAN”
Claim · model-written summary
Low soil fertility reduced 100-seed weight.
- Taxon
- COMMON BEANPhaseolus vulgarist0
- Treatment
- Low soil fertilitye0
- Outcome
- 100-seed weighte0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low soil fertility accelerated maturity and reduced 100-seed weight and seed yield.”
t0“COMMON BEAN”
Claim · model-written summary
Low soil fertility reduced seed yield.
- Taxon
- COMMON BEANPhaseolus vulgarist0
- Treatment
- Low soil fertilitye0
- Outcome
- seed yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low soil fertility accelerated maturity and reduced 100-seed weight and seed yield.”
t0“COMMON BEAN”
The same questions in other papers
soil · yield · Phaseolus vulgaris (common bean)Positive and negative results
3 in the opposite direction
- positive
- positive
- 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.