Variability in seedling emergence for European and North American populations of<i>Abutilon theophrasti</i>

Loddo, Donato; Božić, Dragana; Calha, I.; Dorado, José; Izquierdo, Jordi; Šćepanović, Maja; Barić, Klara; Carlesi, Stefano; Leskovšek, Robert; Peterson, Dean; Vasileiadis, Vasileios; Veres, Andrea; Vrbničanin, Sava; Masin, Roberta

doi:10.1111/wre.12343

Cited by 13 publications

(9 citation statements)

References 32 publications

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“…The prediction of A. retroflexus and S. pumila using the AltertInf model with its original parameters is unfortunately impossible, even in irrigated maize crops, since the T b values of Croatian populations differ statistically from those of the Italian populations present in the hydrothermal model. This variability in germination parameters has also been documented in previous studies and is usually explained as an adaptation process of weed species to local climate conditions [13,36]. The annual air temperature in Zagreb is, on average, lower than that in Padova.…”

Section: Discussionsupporting

confidence: 74%

Germination Parameters of Selected Summer Weeds: Transferring of the AlertInf Model to Other Geographical Regions

et al. 2021

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Effective weed management depends on correct control timing, which depends on seedling emergence dynamics. Since soil temperature and soil moisture are the two main factors that determine weed germination, the hydrothermal time model can be used to predict their emergence. The aim of this study was to estimate the base temperature (Tb) and base water potential (Ψb) for the germination of Chenopodium album, Amaranthus retroflexus, Setaria pumila, and Panicum capillare collected from fields in continental Croatia and then to compare these values with those of Italian populations embedded in the AlertInf model. Germination tests were performed at seven constant temperatures (ranging from 4 to 27 °C) and eight water potentials (0.00–1.00 MPa). The estimated Tb and Ψb were 3.4 °C and −1.38 MPa for C. album, 13.9 °C and −0.36 MPa for A. retroflexus, 6.6 °C and −0.71 MPa for S. pumila, and 11.0 °C and −0.87 MPa for P. capillare, respectively. According to the criterion of overlap of the 95% confidence intervals, only the Tb of C. album and the Ψb of A. retroflexus of the Croatian and Italian populations were similar. Further field experiments should be conducted to monitor the weed emergence patterns of C. album and calibrate the AlerInf equation parameters.

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Section: Discussionsupporting

confidence: 74%

Germination Parameters of Selected Summer Weeds: Transferring of the AlertInf Model to Other Geographical Regions

et al. 2021

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“…Prediction of A. retroflexus and S. pumila by AltertInf model with its original parameters is unfortunately impossible, even in irrigated maize crops, since the Tb values differ statistically with those Italian presents in the hydrothermal model. This variability in germination parameters has also been documented in previous studies and usually explained as adaptation process of weed species to local climate conditions [13,36]. The annual air temperature in Zagreb is on average lower than those in Padova (Table 1).…”

Section: Discussionsupporting

confidence: 80%

Biological Parameters for Germination of Selected Summer Weed Species: First Step to Transfer the Hydrothermal Model Alertinf to Croatia

Šoštarčić¹,

Masin²,

Loddo³

et al. 2021

Preprint

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The efficacy of weed management depends on the correct control timing according to the seedling emergence dynamics. Since soil temperature and soil moisture are two main factors that determine weed germination, the hydrothermal time model can be used to predict their emergence. The aim of this study was to estimate the base temperature (Tb) and base water potential (Ψb) for germination of Chenopodium album, Amaranthus retroflexus, Setaria pumila and Panicum capillare collected from fields in continental Croatia and then to compare these values with those of Italian populations embedded in the AlertInf model. Germination tests were performed at seven constant temperatures (ranging from 4 to 27°C) and eight water potentials (0.00 to - 1.00 MPa). Estimated Tb and Ψb were 3.4°C, -1.38 MPa for C. album, 13.9°C, -0.36 MPa for A. retroflexus, 6.6°C, -0.71 MPa for S. pumila and 11.0°C, -0.87 MPa for P. capillare, respectively. According to the criterion of overlap of the 95% confidence intervals, only Tb of C. album, and Ψb of A. retroflexus were similar between Croatian and Italian populations. Further field experiments should be conducted in the Croatian field to monitor weed emergence patterns of C. album and to calibrate the AlerInf equation parameters.

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“…The found variability in seed traits between C. edulis populations may have important implications for this invasive species management. The work developed by Loddo et al (2019) that evaluated variability in the invasive species Abutilon theophrasti seed traits demonstrated that achieving a better knowledge of interpopulation variability can allow specific control strategies to be designed, facilitating the development of new management tools. Likewise, germination rates of the Alexandra palm were found to potentially better inform of management strategies for the control of this species (Wen 2019).…”

Section: Geographic Intraspecific Variation In Invasive Species: Management Implicationsmentioning

confidence: 99%

Geographic patterns of seed trait variation in an invasive species: how much can close populations differ?

2021

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Seeds play a major role in plant species persistence and expansion, and therefore they are essential when modeling species dynamics. However, homogeneity in seed traits is generally assumed, underestimating intraspecific trait variability across the geographic space, which might bias species success models. The aim of this study was to evaluate the existence and consequences of interpopulation variability in seed traits of the invasive species Carpobrotus edulis at different geographical scales. We measured seed production, morphology, vigour and longevity of nine populations of C. edulis along the Catalan coast (NE Spain) from three differentiated zones with a human presence gradient. Geographic distances between populations were contrasted against individual and multivariate trait distances to explore trait variation along the territory, evaluating the role of bioclimatic variables and human density of the different zones. The analysis revealed high interpopulation variability that was not explained by geographic distance, as regardless of the little distance between some populations (< 0.5 km), significant differences were found in several seed traits. Seed production, germination, and persistence traits showed the strongest spatial variability up to 6000% of percent trait variability between populations, leading to differentiated C. edulis soil seed bank dynamics at small distances, which may demand differentiated strategies for a cost-effective species management. Seed trait variability was influenced by human density but also bioclimatic conditions, suggesting a potential impact of increased anthropogenic pressure and climate shifts. Geographic interpopulation trait variation should be included in ecological models and will be important for assessing species responses to environmental heterogeneity and change.

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Variability in seedling emergence for European and North American populations ofAbutilon theophrasti

Cited by 13 publications

References 32 publications

Germination Parameters of Selected Summer Weeds: Transferring of the AlertInf Model to Other Geographical Regions

Germination Parameters of Selected Summer Weeds: Transferring of the AlertInf Model to Other Geographical Regions

Biological Parameters for Germination of Selected Summer Weed Species: First Step to Transfer the Hydrothermal Model Alertinf to Croatia

Geographic patterns of seed trait variation in an invasive species: how much can close populations differ?

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