Base temperatures for germination of selected weed species in Iran

Donato Loddo, Farshid Ghaderi-Far, Zahra Rastegar and Roberta Masin
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Donato Loddo: Institute of Agro-Environmental and Forest Biology, CNR, Legnaro (PD), Italy
Farshid Ghaderi-Far: Environment, University of Padova, Legnaro (PD), Italy
Zahra Rastegar: Environment, University of Padova, Legnaro (PD), Italy
Roberta Masin: Department of Agronomy, Food, Natural Resources, Animals &

Plant Protection Science, 2018, vol. 54, issue 1, 60-66

Abstract: Weed emergence models require the estimation of base temperature for germination (Tb) that was estimated for Abutilon theophrasti, Echinochloa crus-galli, Amaranthus retroflexus, Sorghum halepense, Amaranthus albus, and Amaranthus hybridus in Iran, to calibrate an existing model called AlertInf. Two statistical procedures were adopted: Model 1 ‒ linear regression of germination rate and Model 2 - probit analysis. Model 1 provided lower Tb values. Abutilon theophrasti and A. hybridus presented lower Tb values (about 4 and 8°C), while the remaining species had values above 10°C. Since the estimated values of Tb were in agreement with those adopted for the Alertinf model in Italy, the first step was achieved to adapt AlertInf to Iranian conditions.

Keywords: Abutilon theophrasti; Amaranthus retroflexus; Amaranthus albus; Amaranthus hybridus; Echinochloa crus-galli; emergence model; population variability; Sorghum halepense (search for similar items in EconPapers)
Date: 2018
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:54:y:2018:i:1:id:92-2016-pps

DOI: 10.17221/92/2016-PPS

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