Publication Date
1993
Description
The emergence from naturally deposited seed of Medicago minima (L,) Grufb. var. minima (Mm) and Erodium circutarium (L.) L'Heril. (Ee) seedlings, and subsequent seedling survival, was studied under different levels of herbaceous vegetation cover in the Calden District ( 10 million ha) of semi-arid Argentina. Five cohorts of Mm seedlings and one of Ee were monitored throughout the 1989 growing season. Seedling emergence of Mm in areas with bare soil patches was about twice that in covered areas, while no differences in emergence of Ee between vegetation stales were found. Survival rates of Mm were lower In areas with bare soil patches and for individuals which emerged later in the growth cycle. In contrast, survival rates of Ec were lower in covered areas, Differential seedling emergence and survival under contrasting vegetation states helps 10 explain the adaptation of these species in this environment.
Citation
Fresnillo-Fedorenko, D E.; Elia, O; Fernandez, O A.; and Busso, C A., "Seedling Emergence and Survival of Medicago minima and Erodium cicutarium in Semi-Arid Argentina" (2024). IGC Proceedings (1993-2023). 32.
https://uknowledge.uky.edu/igc/1993/session11/32
Included in
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Seedling Emergence and Survival of Medicago minima and Erodium cicutarium in Semi-Arid Argentina
The emergence from naturally deposited seed of Medicago minima (L,) Grufb. var. minima (Mm) and Erodium circutarium (L.) L'Heril. (Ee) seedlings, and subsequent seedling survival, was studied under different levels of herbaceous vegetation cover in the Calden District ( 10 million ha) of semi-arid Argentina. Five cohorts of Mm seedlings and one of Ee were monitored throughout the 1989 growing season. Seedling emergence of Mm in areas with bare soil patches was about twice that in covered areas, while no differences in emergence of Ee between vegetation stales were found. Survival rates of Mm were lower In areas with bare soil patches and for individuals which emerged later in the growth cycle. In contrast, survival rates of Ec were lower in covered areas, Differential seedling emergence and survival under contrasting vegetation states helps 10 explain the adaptation of these species in this environment.
