Germination ecology of Chenopodium album L. and implications for weed management
Chenopodium album L. is a troublesome annual species in various cropping systems, and a sound knowledge of the ecological response of C. album germination to environmental factors would suggest suitable management strategies for inhibiting its spread. Preliminary laboratory-based research was conduc...
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| creator | Tang, Wei Guo, Haipeng Yin, Jianing Ding, Xiaohui Xu, Xiaoyan Wang, Tingru Yang, Chao Xiong, Wangdan Zhong, Shangzhi Tao, Qibo Sun, Juan |
| description | Chenopodium album L. is a troublesome annual species in various cropping systems, and a sound knowledge of the ecological response of C. album germination to environmental factors would suggest suitable management strategies for inhibiting its spread. Preliminary laboratory-based research was conducted to investigate germination and emergence requirements of C. album under various environmental conditions (e.g., photoperiods, constant temperature, salinity, moisture, soil pH, burial depth, and oat crop residue). Results showed C. album seeds were found to be photoblastic, with only 13% germination in darkness. The maximum germination (94%) of C. album occurred at an optimal temperature of 25°C, and the depressive effect of other temperatures on germination was more severe at lower rather than higher temperatures. Seed germination was suitably tolerant of salinity and osmotic potential, with germination observed at 200 mM NaCl (37.0%) and -0.8 MPa (20%), respectively. Germination was relatively uniform (88-92%) at pH levels ranging from 4 to 10. The maximum germination of C. album was observed on the soil surface, with no or rare emergence of seeds at a burial depth of 2 cm or under 7000 kg ha.sup.-1 oat straw cover, respectively. Information provided by this study will help to develop more sustainable and effective integrated weed management strategies for the control of C. album, including (i) a shallow-tillage procedures to bury weed seeds in conventional-tillage systems and (ii) oat residue retention or coverage on the soil surface in no-tillage systems. |
| doi_str_mv | 10.1371/journal.pone.0276176 |
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Preliminary laboratory-based research was conducted to investigate germination and emergence requirements of C. album under various environmental conditions (e.g., photoperiods, constant temperature, salinity, moisture, soil pH, burial depth, and oat crop residue). Results showed C. album seeds were found to be photoblastic, with only 13% germination in darkness. The maximum germination (94%) of C. album occurred at an optimal temperature of 25°C, and the depressive effect of other temperatures on germination was more severe at lower rather than higher temperatures. Seed germination was suitably tolerant of salinity and osmotic potential, with germination observed at 200 mM NaCl (37.0%) and -0.8 MPa (20%), respectively. Germination was relatively uniform (88-92%) at pH levels ranging from 4 to 10. The maximum germination of C. album was observed on the soil surface, with no or rare emergence of seeds at a burial depth of 2 cm or under 7000 kg ha.sup.-1 oat straw cover, respectively. Information provided by this study will help to develop more sustainable and effective integrated weed management strategies for the control of C. album, including (i) a shallow-tillage procedures to bury weed seeds in conventional-tillage systems and (ii) oat residue retention or coverage on the soil surface in no-tillage systems.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0276176</identifier><identifier>PMID: 36251670</identifier><language>eng</language><publisher>San Francisco: Public Library of Science</publisher><subject>Agricultural production ; Biology and Life Sciences ; Cereal crops ; Chenopodium album ; Crop residues ; Cropping systems ; Darkness ; Earth Sciences ; Ecology ; Environmental aspects ; Environmental conditions ; Environmental factors ; Genetic aspects ; Germination ; Herbicides ; Management ; Methods ; Moisture effects ; No-tillage ; Oat straw ; Osmotic potential ; pH ; pH effects ; Photoperiods ; Physical Sciences ; Residues ; Salinity ; Salinity effects ; Seed germination ; Seeds ; Sodium chloride ; Soil chemistry ; Soil moisture ; Soil pH ; Soil temperature ; Soils ; Sustainable agriculture ; Temperature effects ; Tillage ; Weed control ; Weeds</subject><ispartof>PloS one, 2022-10, Vol.17 (10), p.e0276176-e0276176</ispartof><rights>COPYRIGHT 2022 Public Library of Science</rights><rights>2022 Tang et al. 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Preliminary laboratory-based research was conducted to investigate germination and emergence requirements of C. album under various environmental conditions (e.g., photoperiods, constant temperature, salinity, moisture, soil pH, burial depth, and oat crop residue). Results showed C. album seeds were found to be photoblastic, with only 13% germination in darkness. The maximum germination (94%) of C. album occurred at an optimal temperature of 25°C, and the depressive effect of other temperatures on germination was more severe at lower rather than higher temperatures. Seed germination was suitably tolerant of salinity and osmotic potential, with germination observed at 200 mM NaCl (37.0%) and -0.8 MPa (20%), respectively. Germination was relatively uniform (88-92%) at pH levels ranging from 4 to 10. The maximum germination of C. album was observed on the soil surface, with no or rare emergence of seeds at a burial depth of 2 cm or under 7000 kg ha.sup.-1 oat straw cover, respectively. Information provided by this study will help to develop more sustainable and effective integrated weed management strategies for the control of C. album, including (i) a shallow-tillage procedures to bury weed seeds in conventional-tillage systems and (ii) oat residue retention or coverage on the soil surface in no-tillage systems.</description><subject>Agricultural production</subject><subject>Biology and Life Sciences</subject><subject>Cereal crops</subject><subject>Chenopodium album</subject><subject>Crop residues</subject><subject>Cropping systems</subject><subject>Darkness</subject><subject>Earth Sciences</subject><subject>Ecology</subject><subject>Environmental aspects</subject><subject>Environmental conditions</subject><subject>Environmental factors</subject><subject>Genetic aspects</subject><subject>Germination</subject><subject>Herbicides</subject><subject>Management</subject><subject>Methods</subject><subject>Moisture effects</subject><subject>No-tillage</subject><subject>Oat 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Preliminary laboratory-based research was conducted to investigate germination and emergence requirements of C. album under various environmental conditions (e.g., photoperiods, constant temperature, salinity, moisture, soil pH, burial depth, and oat crop residue). Results showed C. album seeds were found to be photoblastic, with only 13% germination in darkness. The maximum germination (94%) of C. album occurred at an optimal temperature of 25°C, and the depressive effect of other temperatures on germination was more severe at lower rather than higher temperatures. Seed germination was suitably tolerant of salinity and osmotic potential, with germination observed at 200 mM NaCl (37.0%) and -0.8 MPa (20%), respectively. Germination was relatively uniform (88-92%) at pH levels ranging from 4 to 10. The maximum germination of C. album was observed on the soil surface, with no or rare emergence of seeds at a burial depth of 2 cm or under 7000 kg ha.sup.-1 oat straw cover, respectively. Information provided by this study will help to develop more sustainable and effective integrated weed management strategies for the control of C. album, including (i) a shallow-tillage procedures to bury weed seeds in conventional-tillage systems and (ii) oat residue retention or coverage on the soil surface in no-tillage systems.</abstract><cop>San Francisco</cop><pub>Public Library of Science</pub><pmid>36251670</pmid><doi>10.1371/journal.pone.0276176</doi><tpages>e0276176</tpages><orcidid>https://orcid.org/0000-0002-4942-6390</orcidid><orcidid>https://orcid.org/0000-0003-3504-5834</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Agricultural production Biology and Life Sciences Cereal crops Chenopodium album Crop residues Cropping systems Darkness Earth Sciences Ecology Environmental aspects Environmental conditions Environmental factors Genetic aspects Germination Herbicides Management Methods Moisture effects No-tillage Oat straw Osmotic potential pH pH effects Photoperiods Physical Sciences Residues Salinity Salinity effects Seed germination Seeds Sodium chloride Soil chemistry Soil moisture Soil pH Soil temperature Soils Sustainable agriculture Temperature effects Tillage Weed control Weeds |
| title | Germination ecology of Chenopodium album L. and implications for weed management |
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