Responses of seed viability and germination in four <i>Caragana</i> species when buried in soil under snow cover in Xinjiang

Halmurat · Paruza; Zhao Xiao-Ying; Cheng Peng

doi:10.11913/PSJ.2095-0837.22224

Plant Science Journal > 2023 > 41(4): 513-520. > DOI: 10.11913/PSJ.2095-0837.22224 CSTR: 32231.14.PSJ.2095-0837.22224

Halmurat·Paruza，Zhao XY，Cheng P. Responses of seed viability and germination in four Caragana species when buried in soil under snow cover in Xinjiang[J]. Plant Science Journal，2023，41（4）：513−520. DOI: 10.11913/PSJ.2095-0837.22224

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Responses of seed viability and germination in four Caragana species when buried in soil under snow cover in Xinjiang

1.
College of Life Sciences, Xinjiang Normal University, Urumqi 830054, China
2.
Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, Urumqi 830054, China
3.
Urumqi Meteorological Bureau, Urumqi 830002, China

Funds: This work was supported by grants from the National Natural Science Foundation of China (42067068) and Xinjiang University Key Project (XJEDU2019I020).

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Received Date: August 25, 2022
Revised Date: November 20, 2022
Available Online: January 09, 2023

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Abstract

Abstract

The viability and germination capacity of seeds after storage depends on the environment and seed characteristics during storage. Seasonal snow cover affects seed viability and germination ability in soil by supplementing water sources and regulating near-surface temperature and humidity. In this study, the viability and germination ability of seeds of wild Caragana soongorica Grub., C. tekesiensis Y. Z. Zhao & D. W. Zhou, C. acanthophylla Kom., and C. roborovskyi Kom. from Xinjiang were studied through simulated snow cover and indoor germination experiments after nearly 5 months storage under snow. Compared to their respective viabilities with no snow cover, results demonstrated a 36% decline in seed viability for C. soongorica and a 3% decline in seed viability for C. acanthophylla and C. roborovskyi under snow cover, while C. tekesiensis remained unaffected. The germination rates of the four Caragana species under snow cover ranged from 37% to 84%, which was not significantly different from that without snow cover. Under snow cover, some C. acanthophylla and C. roborovskyi seeds germinated early in the field. Thus, it is recommended to sow C. acanthophylla and C. roborovskyi before snowfall in early winter, while C. soongorica and C. tekesiensis can be sown in the spring of the following year.
- Snow cover,
- Seed viability,
- Seed germination,
- Caragana

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References

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Responses of seed viability and germination in four Caragana species when buried in soil under snow cover in Xinjiang