Gibberellins treatment or stratification can break dormancy of the seeds of three Ranunculus species native to Korea.

Autor: Park S; Division of Animal, Horticultural and Food Sciences, Chungbuk National University, Cheongju, 28644, Republic of Korea., Park K; Division of Animal, Horticultural and Food Sciences, Chungbuk National University, Cheongju, 28644, Republic of Korea.; Research Center for the Development of Advanced Horticultural Technology, Chungbuk National University, Cheongju, 28644, Republic of Korea., Lee J; Department of DMZ Forest Biological Resources Conservation, Korea National Arboretum, Yanggu, 24564, Republic of Korea., Lee H; Division of Animal, Horticultural and Food Sciences, Chungbuk National University, Cheongju, 28644, Republic of Korea., Jang BK; Department of Horticulture, Sunchon National University, Suncheon, 57922, Republic of Korea., Lee H; Forest Ecosystem Restoration Division, Baekdudaegan National Arboretum, Bonghwa, 36209, Republic of Korea., Cho JS; Division of Animal, Horticultural and Food Sciences, Chungbuk National University, Cheongju, 28644, Republic of Korea. jsc@chungbuk.ac.kr.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2024 Nov 18; Vol. 14 (1), pp. 28403. Date of Electronic Publication: 2024 Nov 18.
DOI: 10.1038/s41598-024-80159-x
Abstrakt: In this study, the seed germination and dormancy characteristics of three Ranunculus species native to Korea (R. cantoniensis, R. chinensis, and R. sceleratus) were determined to establish an effective dormancy-breaking protocol. The results revealed that the R. cantoniensis, R. chinensis, and R. sceleratus seeds responded differently to treatment with gibberellins (GAs) and stratification. Warm stratification at 20℃ increased the germination percentage and partially broke the dormancy of the R. cantoniensis seeds; moreover, the germination temperature range of the seeds expanded upon treatment with high-concentration GA 4 + 7 . Meanwhile, neither cold nor warm stratification was effective at breaking the dormancy of R. chinensis seeds; however, high-concentration GA 4 + 7 treatment broke the dormancy of the seeds by expanding the germination temperature range. Lastly, the R. sceleratus seeds did not respond to the treatment with GAs; however, their germination percentage increased after undergoing warm stratification at 25℃. The seeds of these three species were characterized as exhibiting nondeep morphophysiological dormancy. The findings of this study enhance our understanding of the temperature-related germination responses of the three Ranunculus species, offering valuable insights into their conservation and utilization.
Competing Interests: Declarations Competing interests The authors declare no competing interests.
(© 2024. The Author(s).)
Databáze: MEDLINE
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