Environmental factors on seed germination and seedling emergence of Phleum paniculatum Huds.

ABSTRACT Phleum paniculatum Huds., commonly known as British timothy, is an increasingly serious weed in wheat field of China. However, the biology of its seed germination and seedling emergence remain unclear. In the present study, the effects of environmental factors on seed germination and seedli...

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Autores principales:	Wu,Han, Zhang,Pei, Chen,Guoqi, Pan,Lang, Li,Jun, Dong,Liyao
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2018
Materias:	Burial depth dormancy light osmotic potential salt temperature.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392018000300370
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spelling	oai:scielo:S0718-583920180003003702018-11-14Environmental factors on seed germination and seedling emergence of Phleum paniculatum Huds.Wu,HanZhang,PeiChen,GuoqiPan,LangLi,JunDong,Liyao Burial depth dormancy light osmotic potential salt temperature. ABSTRACT Phleum paniculatum Huds., commonly known as British timothy, is an increasingly serious weed in wheat field of China. However, the biology of its seed germination and seedling emergence remain unclear. In the present study, the effects of environmental factors on seed germination and seedling emergence of P. paniculatum were explored. Phleum paniculatum seeds had a shallow dormancy (20-30 d) when stored at room temperature (25 ± 5 °C). Seeds could germinate at constant temperatures between 10 and 25 °C, except for 5 or 30 °C. Light was not essential for seed germination, and pH values from 4 to 10 did not inhibit germination. Seeds were moderately adaptable to water potential and NaCl concentration, and germination rates would be decreased 50% when water potential was -0.4 MPa or NaCl concentration was 130 mM. Increased soil burial depth decreased the seedling emergence, and no seeds emerged when the burial depth was more than 4 cm. Taken together, our results provide useful information of the germination and emergence of P. paniculatum seed, and strategies such as proper drainage systems managed and deep plowing are recommended to limit its detrimental effects on agricultural production.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.78 n.3 20182018-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392018000300370en10.4067/S0718-58392018000300370
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Burial depth dormancy light osmotic potential salt temperature.
spellingShingle	Burial depth dormancy light osmotic potential salt temperature. Wu,Han Zhang,Pei Chen,Guoqi Pan,Lang Li,Jun Dong,Liyao Environmental factors on seed germination and seedling emergence of Phleum paniculatum Huds.
description	ABSTRACT Phleum paniculatum Huds., commonly known as British timothy, is an increasingly serious weed in wheat field of China. However, the biology of its seed germination and seedling emergence remain unclear. In the present study, the effects of environmental factors on seed germination and seedling emergence of P. paniculatum were explored. Phleum paniculatum seeds had a shallow dormancy (20-30 d) when stored at room temperature (25 ± 5 °C). Seeds could germinate at constant temperatures between 10 and 25 °C, except for 5 or 30 °C. Light was not essential for seed germination, and pH values from 4 to 10 did not inhibit germination. Seeds were moderately adaptable to water potential and NaCl concentration, and germination rates would be decreased 50% when water potential was -0.4 MPa or NaCl concentration was 130 mM. Increased soil burial depth decreased the seedling emergence, and no seeds emerged when the burial depth was more than 4 cm. Taken together, our results provide useful information of the germination and emergence of P. paniculatum seed, and strategies such as proper drainage systems managed and deep plowing are recommended to limit its detrimental effects on agricultural production.
author	Wu,Han Zhang,Pei Chen,Guoqi Pan,Lang Li,Jun Dong,Liyao
author_facet	Wu,Han Zhang,Pei Chen,Guoqi Pan,Lang Li,Jun Dong,Liyao
author_sort	Wu,Han
title	Environmental factors on seed germination and seedling emergence of Phleum paniculatum Huds.
title_short	Environmental factors on seed germination and seedling emergence of Phleum paniculatum Huds.
title_full	Environmental factors on seed germination and seedling emergence of Phleum paniculatum Huds.
title_fullStr	Environmental factors on seed germination and seedling emergence of Phleum paniculatum Huds.
title_full_unstemmed	Environmental factors on seed germination and seedling emergence of Phleum paniculatum Huds.
title_sort	environmental factors on seed germination and seedling emergence of phleum paniculatum huds.
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392018000300370
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Environmental factors on seed germination and seedling emergence of Phleum paniculatum Huds.

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