Abstract
Crop cultivars that tolerate water stress would stabilize and expand production in drought endemic environments. They would require less irrigation and help conserve water, an essential natural resource. My objectives were to (i) compare, in water‐stressed and nonstressed environments, the performance of inbred lines from interracial populations of common bean ( Phaseolus vulgaris L.), involving water‐stresstolerant parents, (ii) identify lines that out‐yielded the parents, and (iii) determine heritability and expected gains from selection. Eighty‐five F s ‐derived F s random lines, a population bulk, and four parents from each of two populations (TR 7790 and TR 7791) were evaluated between 1991 and 1993 at Palmira, Colombia. The TR 7790 population involved crosses between common bean races Mesoamerica and Durango, and TR 7791 involved races Mesoamerica and Nueva Granada. Water stress reduced seed yield and 100‐seed weight and accelerated maturity. The mean seed yield for population bulk, inbred lines, and parents of TR 7790 in both water‐stressed and nonstressed environments were higher than those of TR 7791. In population TR 7790, eight lines yielded higher (by an average of 52%) than the mean of parents and six lines yielded higher (by an average of 41%) than the highest yielding parent under water stress. In population TR 7791, eight lines yielded higher than the mean of parents and one line yielded higher than the best parent under water stress. For seed yield, heritability was low for TR 7791 (0.26 ± 0.18 to 0.38 ± 0.17) and high for TR 7790 (0.66 ± 0.15 to 0.80 ± 0.15). Expected gains from selection ranged from 10 to 48%. These results justify searching for and using more germplasm highly tolerant to water stress from races Durango and Mesoamerica.
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Claims 11
Claim · model-written summary
Water stress reduced seed yield and 100-seed weight.
- Taxon
- common bean
Phaseolus vulgarise1 - Treatment
- Water stresse0
- Outcome
- seed yield and 100‐seed weighte0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress reduced seed yield and 100‐seed weight”
e1“common bean ( Phaseolus vulgaris L.)”
Claim · model-written summary
Water stress accelerated maturity.
- Taxon
- common beanPhaseolus vulgarise1
- Treatment
- Water stresse0
- Outcome
- maturitye0
- Direction
- acceleratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress reduced seed yield and 100‐seed weight and accelerated maturity”
e1“common bean ( Phaseolus vulgaris L.)”
Claim · model-written summary
TR 7790 bulk, lines and parents had higher mean yield than TR 7791 in both environments.
- Taxon
- common beanPhaseolus vulgarise1
- Material
- TR 7790e0
- Outcome
- mean seed yielde0
- Direction
- highere0
- Comparator
- TR 7791e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mean seed yield for population bulk, inbred lines, and parents of TR 7790 in both water‐stressed and nonstressed environments were higher than those of TR 7791”
e1“common bean ( Phaseolus vulgaris L.)”
Claim · model-written summary
Eight TR 7790 lines exceeded parental mean yield by 52% on average under stress.
- Taxon
- common beanPhaseolus vulgarise2
- Material
- TR 7790e1
- Outcome
- yieldede0
- Direction
- highere0
- Value
- 52%e0
- Comparator
- mean of parentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“eight lines yielded higher (by an average of 52%) than the mean of parents”
e1“In population TR 7790”
e2“common bean ( Phaseolus vulgaris L.)”
Claim · model-written summary
Six TR 7790 lines exceeded the best parent by 41% on average under stress.
- Taxon
- common beanPhaseolus vulgarise2
- Material
- TR 7790e1
- Outcome
- yieldede0
- Direction
- highere0
- Value
- 41%e0
- Comparator
- highest yielding parente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“six lines yielded higher (by an average of 41%) than the highest yielding parent under water stress”
e1“In population TR 7790”
e2“common bean ( Phaseolus vulgaris L.)”
Claim · model-written summary
Eight TR 7791 lines outyielded the parental mean under stress.
- Taxon
- common beanPhaseolus vulgarise1
- Material
- TR 7791e0
- Outcome
- yieldede0
- Direction
- highere0
- Value
- eight linese0
- Comparator
- mean of parentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In population TR 7791, eight lines yielded higher than the mean of parents and one line yielded higher than the best parent under water stress”
e1“common bean ( Phaseolus vulgaris L.)”
Claim · model-written summary
One TR 7791 line outyielded the best parent under stress.
- Taxon
- common beanPhaseolus vulgarise2
- Material
- TR 7791e1
- Outcome
- yieldede0
- Direction
- highere0
- Value
- one linee0
- Comparator
- best parente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“one line yielded higher than the best parent under water stress”
e1“In population TR 7791”
e2“common bean ( Phaseolus vulgaris L.)”
Claim · model-written summary
Seed-yield heritability was low in TR 7791.
- Taxon
- common beanPhaseolus vulgarise1
- Material
- TR 7791e0
- Outcome
- heritabilitye0
- Direction
- lowe0
- Value
- 0.26 ± 0.18 to 0.38 ± 0.17e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“heritability was low for TR 7791 (0.26 ± 0.18 to 0.38 ± 0.17)”
e1“common bean ( Phaseolus vulgaris L.)”
Claim · model-written summary
Seed-yield heritability was high in TR 7790.
- Taxon
- common beanPhaseolus vulgarise2
- Material
- TR 7790e0
- Outcome
- heritabilitye1
- Direction
- highe0
- Value
- 0.66 ± 0.15 to 0.80 ± 0.15e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high for TR 7790 (0.66 ± 0.15 to 0.80 ± 0.15)”
e1“For seed yield, heritability”
e2“common bean ( Phaseolus vulgaris L.)”
Claim · model-written summary
Expected selection gains ranged from 10 to 48%.
- Taxon
- common beanPhaseolus vulgarise1
- Outcome
- Expected gains from selectione0
- Value
- 10 to 48%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Expected gains from selection ranged from 10 to 48%”
e1“common bean ( Phaseolus vulgaris L.)”
Claim · model-written summary
Authors recommend seeking and using more water-stress-tolerant Durango and Mesoamerica germplasm.
- Taxon
- common beanPhaseolus vulgarise1
- Outcome
- searching for and using more germplasm highly tolerant to water stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These results justify searching for and using more germplasm highly tolerant to water stress from races Durango and Mesoamerica”
e1“common bean ( Phaseolus vulgaris L.)”
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See all 105 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.