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Statements

Subject Item
n2:RIV%2F62156489%3A43410%2F13%3A00201185%21RIV14-MZE-43410___
rdf:type
skos:Concept n15:Vysledek
dcterms: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.
dcterms: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
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
skos:notation
RIV/62156489:43410/13:00201185!RIV14-MZE-43410___
n15:predkladatel
n16:orjk%3A43410
n5:aktivita
n14:P
n5:aktivity
P(QI112A172)
n5:cisloPeriodika
1
n5:dodaniDat
n12:2014
n5:domaciTvurceVysledku
n8:9821414 n8:1021524 n8:1704257
n5:druhVysledku
n13:J
n5:duvernostUdaju
n19:S
n5:entitaPredkladatele
n10:predkladatel
n5:idSjednocenehoVysledku
79029
n5:idVysledku
RIV/62156489:43410/13:00201185
n5:jazykVysledku
n6:eng
n5:klicovaSlova
yield of seedlings; germination capacity; Douglas fir
n5:klicoveSlovo
n9:yield%20of%20seedlings n9:germination%20capacity n9:Douglas%20fir
n5:kodStatuVydavatele
CZ - Česká republika
n5:kontrolniKodProRIV
[CC77D3605E39]
n5:nazevZdroje
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
n5:obor
n18:GK
n5:pocetDomacichTvurcuVysledku
3
n5:pocetTvurcuVysledku
3
n5:projekt
n7:QI112A172
n5:rokUplatneniVysledku
n12:2013
n5:svazekPeriodika
61
n5:tvurceVysledku
Houšková, Kateřina Palátová, Eva Martiník, Antonín
s:issn
1211-8516
s:numberOfPages
9
n20:doi
10.11118/actaun201361010147
n17:organizacniJednotka
43410