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Seed viability and optimal germination conditions of Cedrus atlantica (Manetti ex Endl.) Carrière Cover

Seed viability and optimal germination conditions of Cedrus atlantica (Manetti ex Endl.) Carrière

Forestry Studies
Volume 75 (2021): Issue 1 (December 2021)
By:
Open Access
|Jun 2022

Figures & Tables

Figure 1

Cedrus atlantica (Manetti ex Endl.) Carrière.a: aerial part; b: seeds; c: longitudinal sections of seeds stained with 2,3,5 triphenyltetrazolium chloride (1–6: viable seeds; 7–9: non-viable seeds); Em = embryo; Mp = micropyle; Ra = radicle; Sc = seed coat. The bar corresponds to 1 cm.
Cedrus atlantica (Manetti ex Endl.) Carrière.a: aerial part; b: seeds; c: longitudinal sections of seeds stained with 2,3,5 triphenyltetrazolium chloride (1–6: viable seeds; 7–9: non-viable seeds); Em = embryo; Mp = micropyle; Ra = radicle; Sc = seed coat. The bar corresponds to 1 cm.

Figure 2

Cumulative germination percentages of Cedrus atlantica seeds as a function of temperatures and provenances. a: Thienet El Had; b: Chelia; c: Chrea.
Cumulative germination percentages of Cedrus atlantica seeds as a function of temperatures and provenances. a: Thienet El Had; b: Chelia; c: Chrea.

Figure 3

Effect of temperature on the final germination percentage (FGP), velocity coefficient (VC) and latency time (LT) in Cedrus atlantica seeds of the three provenances.
Effect of temperature on the final germination percentage (FGP), velocity coefficient (VC) and latency time (LT) in Cedrus atlantica seeds of the three provenances.

Figure 4

Effect of the different water potentials on the final germination percentage (FGP), velocity coefficient (VC) and latency time (LT) in seeds of Cedrus atlantica of Thienet El Had provenance. Different letters indicate significant difference between means (p < 0.05).
Effect of the different water potentials on the final germination percentage (FGP), velocity coefficient (VC) and latency time (LT) in seeds of Cedrus atlantica of Thienet El Had provenance. Different letters indicate significant difference between means (p < 0.05).

Effect of temperature and provenance on the final germination percentage (FGP), velocity coefficient (VC) and latency time (LT) in Cedrus atlantica seeds of the three provenances (mean ± SE, n = 4)_

Source of variationDLSums of squaresMean squaresFp
FGPTemperature21106.005553.0025.9460.007
Provenance211682.5385841.26962.806< 0.0001
Temperature*Provenance4456.643114.1611.2270.323
VCTemperature20.0020.0010.6500.530
Provenance20.0280.0148.0250.002
Temperature*Provenance40.0040.0010.5460.703
LTTemperature291.55645.7781.8300.180
Provenance256.72228.3611.1340.337
Temperature*Provenance486.11121.5280.8600.500

Effect of treatments used on the final germination percentage (FGP), velocity coefficient (VC) and latency time (LT) in seeds of Cedrus atlantica of Thienet El Had provenance (mean ± SE, n = 4)_

FGP (%)VC (%)LT (days)
Control52 ± 4.2 b09.7 ± 0.1 a7 a
H2O2 (2%)45 ± 12.6 ab28.3 ± 3.9 c3 b
H2O2 (4%)27 ± 5.4 a27.9 ± 3.2 c3 b
GA3 (50 ppm)47 ± 2.7 ab19.1 ± 1.0 b3 b
GA3 (100 ppm)50 ± 5.8 ab17.9 ± 1.5 b3 b
GA3 (150 ppm)58 ± 7.4 bc25.6 ± 1.5 c3 b
GA3 (200 ppm)50 ± 8.8 ab17.6 ± 0.4 b3 b
Cold stratification (5°C)46 ± 7.7 ab18.8 ± 1.5 b3 b
Hot water (80 °C)77 ± 6.9 c50.8 ± 2.2 d2 c

Provenances and characteristics of the used seeds_

ProvenancesThe harvest yearAge of seeds at the time of useBioclimateGPS coordinates
Thienet El Had (Province of Tissemsilt)20172 yearsSub-humid and humid35°51′56″N01°55′30″E
Chrea (Province of Blida)20172 yearsPerhumid, humid and sub-humid36°21′36.122″N02°49′4.184″E
Chelia (Province of Khenchela)20172 yearsSub-humid and humid35°19′48.5″N6°39′01.2″E
DOI: https://doi.org/10.2478/fsmu-2021-0020 | Journal eISSN: 1736-8723 | Journal ISSN: 1406-9954
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Language: English
Page range: 188 - 201
Submitted on: Dec 1, 2021
Accepted on: Dec 31, 2021
Published on: Jun 4, 2022
Published by: Estonian University of Life Sciences
In partnership with: Paradigm Publishing Services
Publication frequency: 2 times per year
Keywords:
germination,
seed viability,
temperature,
physicochemical treatments,
water stress
Related subjects:
Life sciences,
Plant science,
Ecology,
Life sciences, other

© 2022 Nesrine Hafidou, Zoheir Mehdadi, Ali Latreche, Mohammed Dadach, Ibrahim Bouchaour, published by Estonian University of Life Sciences
This work is licensed under the Creative Commons Attribution 4.0 License.

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