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Wyszukujesz frazę "dormancy" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Effect of scarification on breaking seed dormancy and germination enhancement in Annona muricata L. (Magnoliales: Annonaceae)
Autorzy:
Dada, C. A.
Kayode, J.
Arowosegbe, S.
Ayeni, M. J.
Powiązania:
https://bibliotekanauki.pl/articles/1075444.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Annona muricata
Annonaceae
Dormancy
germination
scarification
Opis:
The effect of various scarification method on breaking seed dormancy and germination enhancement in Annona muricata (Magnoliales: Annonaceae) was examined in this study via: mechanical scarification with sandpaper, file and stone; chemical scarification with 10, 25 and 50% H2SO4 for 5 seconds respectively; exposure to wet heat (hot water) for 1, 3 and 5 seconds; exposure to cold treatment by chilling in refrigerator of 4 ºC for 12, 18 and 24 hours; soaking in coconut water for 5, 10 and 15min and untreated seeds as the control. The results of the experiment showed that chemical scarification with H2SO4 at 50% for 5 seconds had significantly highest percentage germination (60%). This was followed by the seeds soaked in coconut water for 15 minutes (39.69). Seeds treated with 25% H2SO4 for 5 seconds had 30% germination. Other treatment were less or not effective. Untreated seeds had the least percentage germination (6%) with mean germination time of 40.20 and germination index of 0.27. The treatments that gave significantly higher germination percentages also produce low Mean Germination Time (30.01) and increased Germination Index (12.26). These characters shows that chemical scarification with H2SO4 at 50% for 5 seconds was the most effective treatment to break dormancy and enhancing seed germination in this species as revealed in this study.
Źródło:
World Scientific News; 2019, 126; 136-147
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improvement of Parkia Seedling Growth using Various Seed Dormancy Breaking Technologies in Different Soil Media
Autorzy:
Oyebamiji, N. A.
Abdulrahman, H. D.
Ogor, A. A.
Powiązania:
https://bibliotekanauki.pl/articles/1078301.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Parkia biglobosa
Parkia seeds
Seedling growth
dormancy breaking
soil media
technologies
Opis:
Improvement of Parkia seedling growth on plant height (PH) using seed dormancy breaking technologies in different soil media was investigated at nursery unit of Department for Forestry and Wildlife Management, Federal University Dutsin-Ma. Completely Randomized Design (CRD) with four replicates was the design used. The data were analyzed using Analysis of Variance (ANOVA) while the means were separated using Fishers’ Least Significant Difference (F-LSD; P≤ 0.05). Emergence of seeds was observed to commence four days after sowing (DAS) in mechanically scarified seeds (MS). The top soil added with mycorrhiza at 120 g (M120+) had significantly higher value (24.01) on PH at 10 weeks after sowing (WAS) in the main effect. In the interactive effect, seeds soaked in 98 % concentrated tetraoxosulphate (V1) (H2SO4) for 2 and 4 minutes (A2 and A4) and sowed in sterilized top soil (SS) and non-sterilized (NS) had significantly higher values (16.70 and 16.25) and (27.60 and 28.25) on PH at 4 and 12 WAS respectively. Seeds soaked in H2SO4 for 6 minutes (A6) and sowed in M120+ had higher value (15.60) on PH at 4 WAS. MS in M60+, hot water (HW) at 80 ºC and 100 ºC for 10 and 5 minutes had higher effect (16.52 and 16.48) on PH at 4 WAS. MS in HW at 60 ºC for 15 minutes and HW 80 ºC in M60+ was significant on PH (26.80, 27.85 and 29.00) at 12 WAS. HW 60 ºC in SS had higher effect (15.95) on PH at 4 WAS. In conclusion, mechanically scarified seeds, seeds soaked in H2SO4 acid for 2-6 minutes and in hot water between 60 ºC to 100 ºC for at most 15 minutes break Parkia dormancy and grow rapidly in ectomycorrhiza soil.
Źródło:
World News of Natural Sciences; 2019, 22; 139-150
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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