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

Nesrine Hafidou

Nesrine Hafidou

Laboratory of Plant Biodiversity: Conservation and Valorization, Faculty of Natural Sciences and Life, Djillali Liabes UniversitySidi Bel Abbes, Algeria
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Hafidou, Nesrine
, 
Zoheir Mehdadi

Zoheir Mehdadi

Laboratory of Plant Biodiversity: Conservation and Valorization, Faculty of Natural Sciences and Life, Djillali Liabes UniversitySidi Bel Abbes, Algeria
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Mehdadi, Zoheir
, 
Ali Latreche

Ali Latreche

Laboratory of Plant Biodiversity: Conservation and Valorization, Faculty of Natural Sciences and Life, Djillali Liabes UniversitySidi Bel Abbes, Algeria
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Latreche, Ali
, 
Mohammed Dadach

Mohammed Dadach

Bejaia University, Faculty of Natural and Life Sciences, Ecology and Environment Research LaboratoryBejaia, Algeria
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Dadach, Mohammed
 y 
Ibrahim Bouchaour

Ibrahim Bouchaour

Academy of CréteilCréteil, France
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Bouchaour, Ibrahim
  
04 jun 2022
Seed viability and optimal germination conditions of Cedrus atlantica (Manetti ex Endl.) Carrière's Cover Image
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Categoría del artículo: Research paper
Publicado en línea: 04 jun 2022
Páginas: 188 - 201
Recibido: 01 dic 2021
Aceptado: 31 dic 2021
DOI: https://doi.org/10.2478/fsmu-2021-0020
Palabras clave
© 2021 Nesrine Hafidou et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

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 variation DL Sums of squares Mean squares F p
FGP Temperature 2 1106.005 553.002 5.946 0.007
Provenance 2 11682.538 5841.269 62.806 < 0.0001
Temperature*Provenance 4 456.643 114.161 1.227 0.323
VC Temperature 2 0.002 0.001 0.650 0.530
Provenance 2 0.028 0.014 8.025 0.002
Temperature*Provenance 4 0.004 0.001 0.546 0.703
LT Temperature 2 91.556 45.778 1.830 0.180
Provenance 2 56.722 28.361 1.134 0.337
Temperature*Provenance 4 86.111 21.528 0.860 0.500

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)
Control 52 ± 4.2 b 09.7 ± 0.1 a 7 a
H2O2 (2%) 45 ± 12.6 ab 28.3 ± 3.9 c 3 b
H2O2 (4%) 27 ± 5.4 a 27.9 ± 3.2 c 3 b
GA3 (50 ppm) 47 ± 2.7 ab 19.1 ± 1.0 b 3 b
GA3 (100 ppm) 50 ± 5.8 ab 17.9 ± 1.5 b 3 b
GA3 (150 ppm) 58 ± 7.4 bc 25.6 ± 1.5 c 3 b
GA3 (200 ppm) 50 ± 8.8 ab 17.6 ± 0.4 b 3 b
Cold stratification (5°C) 46 ± 7.7 ab 18.8 ± 1.5 b 3 b
Hot water (80 °C) 77 ± 6.9 c 50.8 ± 2.2 d 2 c

Provenances and characteristics of the used seeds_

Provenances The harvest year Age of seeds at the time of use Bioclimate GPS coordinates
Thienet El Had (Province of Tissemsilt) 2017 2 years Sub-humid and humid 35°51′56″N01°55′30″E
Chrea (Province of Blida) 2017 2 years Perhumid, humid and sub-humid 36°21′36.122″N02°49′4.184″E
Chelia (Province of Khenchela) 2017 2 years Sub-humid and humid 35°19′48.5″N6°39′01.2″E
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