About: Impact of pre-sowing treatment and sowing season on Douglas fir emergence rate in a specific seed lot

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Not only in the Czech Republic there is a problem with low yield of Douglas fi r seedlings in forest tree nurseries. It can be caused mainly by two factors: The type of pre-sowing treatment and the temperature at the time of sowing. The aim of this study is to fi nd out their infl uence on the emergence rate of Douglas fi r. We have tested one specifi c seed lot originated from the Czech Republic subject to the following variants of pre-sowing treatment: soaking for 48 hours, stratifi cation without a medium for 21 days and for 30 days after 48 hours of soaking and stratifi cation for 30 days with a medium. The treated seeds were sown in a phytotron at temperatures of 13/8 °C - 10/14 hours (day/night) (simulation of early sowing season in February or March) and at temperatures of 17/13 °C - 14/10 hours (simulation of late sowing season in May). In case of the early sowing season, approximately half of the germinable seeds emerged in all treatment variants including the control variant (seeds without stratifi cation). The late sowing season resulted in different emergence rate of the seeds that were subject to different variants of pre-sowing treatment (24-51 %). Then, 21day and 30day stratifi cation were not suffi cient for the tested conditions of the early and late sowing season. None of the combinations of pre-sowing treatment and sowing time resulted in full use of the seed potential of the tested seed lot. Not only in the Czech Republic there is a problem with low yield of Douglas fi r seedlings in forest tree nurseries. It can be caused mainly by two factors: The type of pre-sowing treatment and the temperature at the time of sowing. The aim of this study is to fi nd out their infl uence on the emergence rate of Douglas fi r. We have tested one specifi c seed lot originated from the Czech Republic subject to the following variants of pre-sowing treatment: soaking for 48 hours, stratifi cation without a medium for 21 days and for 30 days after 48 hours of soaking and stratifi cation for 30 days with a medium. The treated seeds were sown in a phytotron at temperatures of 13/8 °C - 10/14 hours (day/night) (simulation of early sowing season in February or March) and at temperatures of 17/13 °C - 14/10 hours (simulation of late sowing season in May). In case of the early sowing season, approximately half of the germinable seeds emerged in all treatment variants including the control variant (seeds without stratifi cation). The late sowing season resulted in different emergence rate of the seeds that were subject to different variants of pre-sowing treatment (24-51 %). Then, 21day and 30day stratifi cation were not suffi cient for the tested conditions of the early and late sowing season. None of the combinations of pre-sowing treatment and sowing time resulted in full use of the seed potential of the tested seed lot. (en)
Title	Impact of pre-sowing treatment and sowing season on Douglas fir emergence rate in a specific seed lot Impact of pre-sowing treatment and sowing season on Douglas fir emergence rate in a specific seed lot (en)
skos:prefLabel	Impact of pre-sowing treatment and sowing season on Douglas fir emergence rate in a specific seed lot Impact of pre-sowing treatment and sowing season on Douglas fir emergence rate in a specific seed lot (en)
skos:notation	RIV/62156489:43410/13:00201185!RIV14-MZE-43410___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(QI112A172)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Houšková, Kateřina Palátová, Eva Martiník, Antonín
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Mendelova univerzita v Brně / Lesnická a dřevařská fakulta
http://linked.open...dnocenehoVysledku	79029
http://linked.open...ai/riv/idVysledku	RIV/62156489:43410/13:00201185
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	yield of seedlings; germination capacity; Douglas fir (en)
http://linked.open.../riv/klicoveSlovo	yield of seedlings germination capacity Douglas fir
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[CC77D3605E39]
http://linked.open...i/riv/nazevZdroje	Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
http://linked.open...in/vavai/riv/obor	GK
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Silvicultural approaches applied to use Douglas fir in mixed stands in the Czech Republic
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	61
http://linked.open...iv/tvurceVysledku	Houšková, Kateřina Palátová, Eva Martiník, Antonín
issn	1211-8516
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.11118/actaun201361010147
http://localhost/t...ganizacniJednotka	43410

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