Factors affecting seed germination and emergence of Aegilops tauschii
Information on seed germination and emergence ecology of Aegilops tauschii is scant, despite it being a widespread invasive weed in China. We conducted this study to determine the effects of various factors on seed germination and seedling emergence in three A. tauschii populations. Seeds germinated...
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Veröffentlicht in: | Weed research 2020-06, Vol.60 (3), p.171-181 |
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description | Information on seed germination and emergence ecology of Aegilops tauschii is scant, despite it being a widespread invasive weed in China. We conducted this study to determine the effects of various factors on seed germination and seedling emergence in three A. tauschii populations. Seeds germinated across a wide range of temperatures (5–35°C), with germination of over 90% at 15–20°C. Germination was completely inhibited when dry seeds were exposed to a temperature of 160°C for 5 min; a similar response was observed for pre‐soaked seeds at 100°C. Light was neither required for nor inhibited germination. Germination was not significantly affected by pH. Aegilops tauschii was relatively tolerant to low osmotic potential and high salt stress: over 80% of seeds germinated at −0.3 MPa, and all three populations germinated in the presence of 400 mM salt (NaCl) although salt tolerance varied among the populations. Seeds buried at depths of 1–3 cm emerged well, but emergence was completely inhibited at depths greater than 8 cm. The addition of maize straw caused a linear reduction in seedling emergence, although the rate of reduction varied among the populations. The results of this study have contributed to understanding the requirements of A. tauschii germination and emergence and optimising an integrated management system for this weed in Huang–Huai–Hai Plain of China. In addition, our study provides data for development of models to predict the geographical distribution of this weed. |
doi_str_mv | 10.1111/wre.12410 |
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We conducted this study to determine the effects of various factors on seed germination and seedling emergence in three A. tauschii populations. Seeds germinated across a wide range of temperatures (5–35°C), with germination of over 90% at 15–20°C. Germination was completely inhibited when dry seeds were exposed to a temperature of 160°C for 5 min; a similar response was observed for pre‐soaked seeds at 100°C. Light was neither required for nor inhibited germination. Germination was not significantly affected by pH. Aegilops tauschii was relatively tolerant to low osmotic potential and high salt stress: over 80% of seeds germinated at −0.3 MPa, and all three populations germinated in the presence of 400 mM salt (NaCl) although salt tolerance varied among the populations. Seeds buried at depths of 1–3 cm emerged well, but emergence was completely inhibited at depths greater than 8 cm. The addition of maize straw caused a linear reduction in seedling emergence, although the rate of reduction varied among the populations. The results of this study have contributed to understanding the requirements of A. tauschii germination and emergence and optimising an integrated management system for this weed in Huang–Huai–Hai Plain of China. In addition, our study provides data for development of models to predict the geographical distribution of this weed.</description><identifier>ISSN: 0043-1737</identifier><identifier>EISSN: 1365-3180</identifier><identifier>DOI: 10.1111/wre.12410</identifier><language>eng</language><publisher>Oxford: Wiley Subscription Services, Inc</publisher><subject>Aegilops tauschii ; burial depth ; Emergence ; Geographical distribution ; Germination ; Goat grass ; heat shock ; Light effects ; maize straw ; Osmotic potential ; Populations ; Reduction ; salt stress ; Salt tolerance ; Seed germination ; Seedlings ; Seeds ; Sodium chloride ; temperature ; Weeds</subject><ispartof>Weed research, 2020-06, Vol.60 (3), p.171-181</ispartof><rights>2020 European Weed Research Society</rights><rights>Weed Research © 2020 European Weed Research Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2970-f51259bd595d76a621f5bb7e9a46dcad2a2cabee27f24c3775fe8e319c944543</citedby><cites>FETCH-LOGICAL-c2970-f51259bd595d76a621f5bb7e9a46dcad2a2cabee27f24c3775fe8e319c944543</cites><orcidid>0000-0003-1294-8854</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fwre.12410$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fwre.12410$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><contributor>Storkey, Jonathan</contributor><creatorcontrib>Wang, Hengzhi</creatorcontrib><creatorcontrib>Zhao, Kongping</creatorcontrib><creatorcontrib>Li, Xiangju</creatorcontrib><creatorcontrib>Chen, Xiutao</creatorcontrib><creatorcontrib>Liu, Weitang</creatorcontrib><creatorcontrib>Wang, Jinxin</creatorcontrib><creatorcontrib>Storkey, Jonathan</creatorcontrib><title>Factors affecting seed germination and emergence of Aegilops tauschii</title><title>Weed research</title><description>Information on seed germination and emergence ecology of Aegilops tauschii is scant, despite it being a widespread invasive weed in China. We conducted this study to determine the effects of various factors on seed germination and seedling emergence in three A. tauschii populations. Seeds germinated across a wide range of temperatures (5–35°C), with germination of over 90% at 15–20°C. Germination was completely inhibited when dry seeds were exposed to a temperature of 160°C for 5 min; a similar response was observed for pre‐soaked seeds at 100°C. Light was neither required for nor inhibited germination. Germination was not significantly affected by pH. Aegilops tauschii was relatively tolerant to low osmotic potential and high salt stress: over 80% of seeds germinated at −0.3 MPa, and all three populations germinated in the presence of 400 mM salt (NaCl) although salt tolerance varied among the populations. Seeds buried at depths of 1–3 cm emerged well, but emergence was completely inhibited at depths greater than 8 cm. The addition of maize straw caused a linear reduction in seedling emergence, although the rate of reduction varied among the populations. The results of this study have contributed to understanding the requirements of A. tauschii germination and emergence and optimising an integrated management system for this weed in Huang–Huai–Hai Plain of China. In addition, our study provides data for development of models to predict the geographical distribution of this weed.</description><subject>Aegilops tauschii</subject><subject>burial depth</subject><subject>Emergence</subject><subject>Geographical distribution</subject><subject>Germination</subject><subject>Goat grass</subject><subject>heat shock</subject><subject>Light effects</subject><subject>maize straw</subject><subject>Osmotic potential</subject><subject>Populations</subject><subject>Reduction</subject><subject>salt stress</subject><subject>Salt tolerance</subject><subject>Seed germination</subject><subject>Seedlings</subject><subject>Seeds</subject><subject>Sodium chloride</subject><subject>temperature</subject><subject>Weeds</subject><issn>0043-1737</issn><issn>1365-3180</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LAzEURYMoWKsL_0HAlYtp8zlplqW0VSgIUnAZMpmXMaWd1GRK6b93dNz6Nndz7n1wEHqkZEL7m54TTCgTlFyhEeWlLDidkWs0IkTwgiqubtFdzjtCSFlqPULLlXVdTBlb78F1oW1wBqhxA-kQWtuF2GLb1hgOkBpoHeDo8RyasI_HjDt7yu4zhHt04-0-w8NfjtF2tdwuXorN2_p1Md8UjmlFCi8pk7qqpZa1Km3JqJdVpUBbUdbO1swyZysApjwTjislPcyAU-20EFLwMXoaZo8pfp0gd2YXT6ntPxomCGFcEk566nmgXIo5J_DmmMLBpouhxPxIMr0k8yupZ6cDew57uPwPmo_35dD4BslCaHY</recordid><startdate>202006</startdate><enddate>202006</enddate><creator>Wang, Hengzhi</creator><creator>Zhao, Kongping</creator><creator>Li, Xiangju</creator><creator>Chen, Xiutao</creator><creator>Liu, Weitang</creator><creator>Wang, Jinxin</creator><creator>Storkey, Jonathan</creator><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0003-1294-8854</orcidid></search><sort><creationdate>202006</creationdate><title>Factors affecting seed germination and emergence of Aegilops tauschii</title><author>Wang, Hengzhi ; Zhao, Kongping ; Li, Xiangju ; Chen, Xiutao ; Liu, Weitang ; Wang, Jinxin ; Storkey, Jonathan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2970-f51259bd595d76a621f5bb7e9a46dcad2a2cabee27f24c3775fe8e319c944543</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Aegilops tauschii</topic><topic>burial depth</topic><topic>Emergence</topic><topic>Geographical distribution</topic><topic>Germination</topic><topic>Goat grass</topic><topic>heat shock</topic><topic>Light effects</topic><topic>maize straw</topic><topic>Osmotic potential</topic><topic>Populations</topic><topic>Reduction</topic><topic>salt stress</topic><topic>Salt tolerance</topic><topic>Seed germination</topic><topic>Seedlings</topic><topic>Seeds</topic><topic>Sodium chloride</topic><topic>temperature</topic><topic>Weeds</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Hengzhi</creatorcontrib><creatorcontrib>Zhao, Kongping</creatorcontrib><creatorcontrib>Li, Xiangju</creatorcontrib><creatorcontrib>Chen, Xiutao</creatorcontrib><creatorcontrib>Liu, Weitang</creatorcontrib><creatorcontrib>Wang, Jinxin</creatorcontrib><creatorcontrib>Storkey, Jonathan</creatorcontrib><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><jtitle>Weed research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Hengzhi</au><au>Zhao, Kongping</au><au>Li, Xiangju</au><au>Chen, Xiutao</au><au>Liu, Weitang</au><au>Wang, Jinxin</au><au>Storkey, Jonathan</au><au>Storkey, Jonathan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Factors affecting seed germination and emergence of Aegilops tauschii</atitle><jtitle>Weed research</jtitle><date>2020-06</date><risdate>2020</risdate><volume>60</volume><issue>3</issue><spage>171</spage><epage>181</epage><pages>171-181</pages><issn>0043-1737</issn><eissn>1365-3180</eissn><abstract>Information on seed germination and emergence ecology of Aegilops tauschii is scant, despite it being a widespread invasive weed in China. We conducted this study to determine the effects of various factors on seed germination and seedling emergence in three A. tauschii populations. Seeds germinated across a wide range of temperatures (5–35°C), with germination of over 90% at 15–20°C. Germination was completely inhibited when dry seeds were exposed to a temperature of 160°C for 5 min; a similar response was observed for pre‐soaked seeds at 100°C. Light was neither required for nor inhibited germination. Germination was not significantly affected by pH. Aegilops tauschii was relatively tolerant to low osmotic potential and high salt stress: over 80% of seeds germinated at −0.3 MPa, and all three populations germinated in the presence of 400 mM salt (NaCl) although salt tolerance varied among the populations. Seeds buried at depths of 1–3 cm emerged well, but emergence was completely inhibited at depths greater than 8 cm. The addition of maize straw caused a linear reduction in seedling emergence, although the rate of reduction varied among the populations. The results of this study have contributed to understanding the requirements of A. tauschii germination and emergence and optimising an integrated management system for this weed in Huang–Huai–Hai Plain of China. In addition, our study provides data for development of models to predict the geographical distribution of this weed.</abstract><cop>Oxford</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1111/wre.12410</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0003-1294-8854</orcidid></addata></record> |
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subjects | Aegilops tauschii burial depth Emergence Geographical distribution Germination Goat grass heat shock Light effects maize straw Osmotic potential Populations Reduction salt stress Salt tolerance Seed germination Seedlings Seeds Sodium chloride temperature Weeds |
title | Factors affecting seed germination and emergence of Aegilops tauschii |
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