Claim · model-written summary
Rainfall amount and/or soil substrate significantly influenced germination probability in four of the five species.
- Taxon
- Acacia hilliana, Acacia inaequilatera, Indigofera monophylla, Triodia pungens, and Triodia wiseana
Acacia inaequilatera
Triodia pungens
Acacia hilliana
Triodia wiseana.jpg?width=60)
Indigofera monophyllae0 - Treatment
- rainfall amount and/or soil substratee1
- Outcome
- germination probabilitye1
Not reportedDirection
Verbatim
e0“Acacia hilliana, Acacia inaequilatera, Indigofera monophylla, Triodia pungens, and Triodia wiseana”
e1“For four species, both rainfall amount and/or soil substrate significantly influenced germination probability”
Title
Unpacking the recruitment potential of seeds in reconstructed soils and varying rainfall patterns
Todd E. Erickson; John M. Dwyer; Emma L. Dalziell; et al. Australian Journal of Botany 2023. doi:10.1071/bt22141
Other claims from this paper (8)
- Association Rainfall was a more significant determinant of germination than soil type.
- Association Germination was greatest under higher rainfall regimes of 120–280 mm, irrespective of soil type.
- Association Emergence of both Acacia spp. was positively influenced by soils containing topsoil.
- Association Emergence of I. monophylla and Triodia spp was most limited in substrates made solely of overburden waste material.
- Association The lowest rainfall regime exacerbated emergence failure relative to germination success in I. monophylla and Triodia spp.
- Intervention effect Seedling survival of all species was most constrained in 100% overburden waste compared with the well-watered 100% topsoil substrate.
- Association Successful seedling recruitment in this ecosystem depends on frequent, repeated rainfall events above a threshold of 120 mm.
- Recommendation Future seeding technologies should focus on improving the moisture relations of the microsite.