Claim · model-written summary
Recurrent selection increased drought grain yield by 30 to 50%.
- Treatment
- Recurrent selection for drought tolerancee0
- Outcome
- grain yield (GY)e0
- Direction
- increasede0
- Value
- 30 to 50%e0
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recurrent selection for drought tolerance for three to eight cycles has increased grain yield (GY) under drought at flowering by 30 to 50% in three lowland tropical maize ( Zea mays L.) populations.”
Title
S.C. Chapman; G.O. Edmeades Crop Science 1999. doi:10.2135/cropsci1999.3951315x
Other claims from this paper (16)
- Intervention effect GY changed 12.6% per selection cycle under drought
- Intervention effect fertile ears per plant (EPP) changed 8.9% per selection cycle under drought
- Intervention effect grains per fertile ear (GPE) changed 6.3% per selection cycle under drought
- Intervention effect grain number per square meter changed 12.2% per selection cycle under drought
- Intervention effect 1000 grain weight changed no change per selection cycle under drought
- Intervention effect anthesis‐silking interval (ASI) changed −22.0% per selection cycle under drought
- Intervention effect days from sowing to 50% anthesis changed −0.7% per selection cycle under drought
- Intervention effect plant height changed −2.0% per selection cycle under drought
- Intervention effect primary tassel branch number changed −5.9% per selection cycle under drought
- Intervention effect senesced leaf area changed 2.7% per selection cycle under drought
- Observation Responses under well-watered conditions were smaller but generally had the same sign.
- Association Grain yield was strongly associated with grain number per square meter under both watering conditions.
- Association Grain yield was correlated with ASI under drought, but not plentiful water.
- Association EPP was correlated with ASI under drought, but not plentiful water.
- Association GPE was correlated with ASI under drought, but not plentiful water.
- Recommendation The authors endorse managed stress environments for selection.