The effect of prolonged stratification and shading on the emergence of Pseudotsuga menziesii (Mirb.) Franco seedlings

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F23%3A43923727" target="_blank" >RIV/62156489:43410/23:43923727 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.12657/denbio.089.009" target="_blank" >https://doi.org/10.12657/denbio.089.009</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.12657/denbio.089.009" target="_blank" >10.12657/denbio.089.009</a>

Result language

angličtina

Original language name

The effect of prolonged stratification and shading on the emergence of Pseudotsuga menziesii (Mirb.) Franco seedlings

Original language description

The Douglas fir has been cultivated in Europe since the mid-19th century, but its artificial re-generation leads to a low yield of seedlings. It could be improved by prolonged pre-sowing treatment (cold stratification of seeds) or the early shading of sowings, so that their effect on five Douglas fir seed lots and their emergence and growth of seedlings were analysed. One lot came from the USA; four lots came from the Czech Republic. The germination capacity and germination rate were analysed for seed without pre-sowing treatment and seed after 21-day and 49-day stratification. The emergence rate was tested for variants of the 21-day and the 49-day stratification (shaded and unshaded treatment) and for autumn sow-ing (unshaded treatment). The results show that the maximal germination capacity of full seeds is achieved after the 21-day stratification. The prolonged 49-day stratification increases the germination rate, especially in seed lots with lower vitality. The biggest seedlings, in terms of length and biomass of the above-ground part and the biomass of the root system, emerged from seeds sown in autumn. The combination of the 49- day stratification of seeds and the 3-week shading after spring sowing can accelerate seedling emergence and increase the emergence rate of seedlings; seedlings achieve more biomass and length of the above-ground part, the root system compared to unshaded seedlings or seedlings emerged from 21-day stratified seeds. Comparable or better results were achieved from autumn sowing.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

40102 - Forestry

Project

<a href="/en/project/QI112A172" target="_blank" >QI112A172: Silvicultural approaches applied to use Douglas fir in mixed stands in the Czech Republic</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Dendrobiology

ISSN

1641-1307

e-ISSN

2083-8387

Volume of the periodical

89

Issue of the periodical within the volume

2023

Country of publishing house

PL - POLAND

Number of pages

10

Pages from-to

82-91

UT code for WoS article

001044504700007

EID of the result in the Scopus database

2-s2.0-85171190062