Claim · model-written summary
Carbon isotope discrimination showed no direct association with grain yield in path analysis.
- Taxon
- chickpea
Cicer arietinume0 - Outcome
- grain yielde7
- Qualifier
- no direct associatione7
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Terminal drought is a major constraint to chickpea productivity”
e7“Path coefficients showed no direct association of Δ13C with grain yield but an indirect negative association through shoot biomass at maturity and a close positive association through HI”
Title
Lakshmanan Krishnamurthy; Junichi Kashiwagi; Satoshi Tobita; et al. Functional Plant Biology 2013. doi:10.1071/fp13088
Other claims from this paper (14)
- Intervention effect Drought stress reduced chickpea shoot biomass by 36-39%.
- Intervention effect Drought stress reduced chickpea grain yield by 23%.
- Observation Mean carbon isotope discrimination was low in chickpea accessions under drought stress.
- Observation The range of genetic variation in carbon isotope discrimination was high under drought stress.
- Association High carbon isotope discrimination accessions were early in flowering (40-50 days).
- Association High carbon isotope discrimination accessions had high seed yields.
- Association High carbon isotope discrimination accessions had high harvest index.
- Association Carbon isotope discrimination was positively correlated with seed yield under drought stress in both years.
- Association The positive correlation of carbon isotope discrimination with seed yield was found only in 2008-09 under optimal irrigation.
- Association The positive association of carbon isotope discrimination with seed yield was very close with harvest index.
- Association Among the yield components, carbon isotope discrimination was closely associated with pod numbers per unit area and seed size under drought stress.
- Association Carbon isotope discrimination had an indirect negative association with grain yield through shoot biomass at maturity.
- Observation Carbon isotope discrimination had a close positive association with grain yield through harvest index.
- Association The closest association of harvest index or shoot biomass was in the maturity group of accessions under optimum terminal drought stress.