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dc.contributor.author
Acosta, Juan Manuel
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dc.contributor.author
Bentivegna, Diego Javier
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dc.contributor.author
Panigo, Elisa
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dc.contributor.author
Dellaferrera, Ignacio Miguel
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dc.contributor.author
Alisio, M.
dc.contributor.author
Perreta, Mariel Gladis
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dc.date.available
2016-11-29T21:37:13Z
dc.date.issued
2014-10-05
dc.identifier.citation
Acosta, Juan Manuel; Bentivegna, Diego Javier; Panigo, Elisa; Dellaferrera, Ignacio Miguel; Alisio, M.; et al.; Influence of environmental factors on seed germination and emergence of Iresine diffusa; Wiley Blackwell Publishing, Inc; Weed Research; 54; 6; 5-10-2014; 584-592
dc.identifier.issn
0043-1737
dc.identifier.uri
http://hdl.handle.net/11336/8483
dc.description.abstract
Iresine diffusa has become more abundant under no-till soyabean in Argentina. The influence of temperature, light, cold-wet storage, osmotic potential, dry storage and depth of seed burial on germination and emergence of I. diffusa was examined in a growth chamber experiment. Iresine diffusa seeds germinated at the highest proportion (>0.80) in all fluctuating day/night temperatures tested. Conversely, under a constant temperature regime, maximum germination rates occurred at 15 (0.78) and 20°C (0.82), and minimum germination rates occurred at 10 (0.19) and 30°C (0.36). Seed germination was not influenced by light exposure. However, germination decreased after 12 (0.76) and 16 (0.65) weeks in cold-wet storage. To reduce germination significantly, −0.4 MPa of osmotic potential (induced by PEG-6000) or 120 mmol L−1 of salt (NaCl) concentration was required. Seeds of I. diffusa showed high viability (0.85) after 720 days of dry storage. Low emergence was recorded for seeds buried at 2 cm, and seedling emergence was completely inhibited when seeds were buried at 5 and 10 cm. Iresine diffusa seeds had high viability and were capable of emerging in a broad range of environmental conditions. The thermal germination conditions, shallow soil depths and high moisture conditions in germination phase for I. diffusa are congruent with the conditions in Argentina no-tillage soyabean. Thus, no-tillage could provide better conditions for germination than conventional tillage systems. However, due to the fact that I. diffusa can reproduce by rhizomes, further research should be conducted to understand the relative importance of the vegetative reproductive strategy in relation to the presence and persistence of this weed in fields.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Juba´S Bush
dc.subject
Temperature
dc.subject
Cold-Wet
dc.subject
Light
dc.subject
Osmotic Potential
dc.subject
Salinity
dc.subject
Weed Seed
dc.subject.classification
Agricultura
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dc.subject.classification
Agricultura, Silvicultura y Pesca
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dc.subject.classification
CIENCIAS AGRÍCOLAS
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dc.title
Influence of environmental factors on seed germination and emergence of Iresine diffusa
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-11-24T14:14:08Z
dc.identifier.eissn
1365-3180
dc.journal.volume
54
dc.journal.number
6
dc.journal.pagination
584-592
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Acosta, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Agrobiotecnologia del Litoral; Argentina
dc.description.fil
Fil: Bentivegna, Diego Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida(i); Argentina
dc.description.fil
Fil: Panigo, Elisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Agrobiotecnologia del Litoral; Argentina
dc.description.fil
Fil: Dellaferrera, Ignacio Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Agrobiotecnologia del Litoral; Argentina
dc.description.fil
Fil: Alisio, M.. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentina
dc.description.fil
Fil: Perreta, Mariel Gladis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Agrobiotecnologia del Litoral; Argentina
dc.journal.title
Weed Research
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/wre.12114
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/wre.12114/abstract
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