Article
Plant Sciences
Kaitlynn Lavallee, Pushpa Gautam Soti, Hansapani Rodrigo, Rupesh Kariyat, Alexis Racelis
Summary: The study tested how four pre-sowing treatments affected the viability and seed germination rates of 12 commercially available plant species native to south Texas. Results showed that pre-sowing treatments accelerated the germination rate in 9 out of 12 plant species tested, but the effect varied by treatment.
Article
Agronomy
Seung-Hyuk Yang, Young-Hyun Kwon, Kil-Nam Kang, Seog-Gu Son, Yong-Ha Rhie
Summary: This study revealed that H. dulcis seeds have only physical dormancy, but no physiological dormancy. Water absorption and scarification treatments were used to determine the dormancy type, and additional treatments were performed to confirm the absence of physiological dormancy. The results showed that H. dulcis seeds only have physical dormancy and cannot be promoted to germination by cold stratification or gibberellic acid treatments.
Article
Forestry
Gutierre Pereira Maciel, Cecilio Frois Caldeira, Markus Gastauer, Paula Godinho Ribeiro, Giselly Mota da Silva, Silvio Junio Ramos
Summary: The lack of knowledge about seeds of native species is a major challenge for their use in environmental rehabilitation. In this study, the morphology and germination of native species seeds found in areas close to mines in the Eastern Amazon were analyzed. It was found that mechanical scarification can significantly improve the germination of native species.
Article
Plant Sciences
Elisa Soledad Panigo, Eugenia Oggero, Ignacio Miguel Dellaferrera, Carlos Agustin Alesso, Guillermo Ruben Chantre, Mariel Gladis Perreta, Andrea Guadalupe Reutemann
Summary: This study analyzed the morpho-anatomy, dormancy dynamics, and water entry of the fruit and dimorphic seeds of Commelina erecta, a successful weed species. The results showed that the fruit of C. erecta develops both free and coated seeds within dehiscent and indehiscent carpels, respectively. The main anatomical differences between the two seed types were observed in the testa and number of covering layers. Imbibition experiments indicated that both seed types lack physical dormancy and may exhibit physiological dormancy. Germinability experiments showed that the dormancy in free seeds varies throughout the reproductive season, while coated seeds have high dormancy throughout the season. The embryotega, an area where the seed coat hardness is interrupted, facilitates water entry. These findings are important for designing weed management strategies in agroecosystems.
Article
Plant Sciences
Sang Yeob Lee, Kyungtae Park, Bo-Kook Jang, Boran Ji, Hamin Lee, Carol C. Baskin, Ju-Sung Cho
Summary: Accelerated global warming is causing loss of plant species diversity. The endangered Amsonia elliptica species in Korea lacks information on dormancy and germination. This study identified the causes of dormancy and developed an efficient method using stratification and gibberellin to break dormancy and promote germination.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Lei Zhang, Chaohan Xu, Huina Liu, Qingqing Wu, Jun Tao, Keliang Zhang
Summary: This study found that the seeds of Aconitum barbatum are in a state of undeveloped embryo dormancy, and natural winter cold stratification can break seed dormancy and promote germination in the following growing season.
Article
Plant Sciences
Qing-Yan Wang, Ling Yang, Na Ge, Jin-Shan Jia, Rong-Mei Huang, Cui Chen, Zhen-Gui Meng, Long-Gen Li, Jun-Wen Chen
Summary: This study found that high concentrations of abscisic acid (ABA) treatment can reduce the germination rate of Panax notoginseng seeds and have a significant impact on hormone levels and gene expression. Meanwhile, the study also revealed the crucial role of ABA in regulating dormancy in recalcitrant seeds, providing new insights for agricultural production and storage.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Horticulture
Kyungtae Park, Hamin Lee, Bo-Kook Jang, Ju-Sung Cho
Summary: The dormancy and germination characteristics of Euphorbia maculata L. seeds were studied, revealing the presence of innate and conditional dormancy. Dormancy could be released by cold stratification, while high-temperature moist stratification led to seed decay. Treating the seeds at high temperatures in a dry environment facilitated dormancy release, minimizing seed wastage.
Review
Horticulture
Abdel-Moety Salama, Ahmed Ezzat, Hassan El-Ramady, Shamel M. Alam-Eldein, Sameh K. Okba, Hayam M. Elmenofy, Islam F. Hassan, Attila Illes, Imre J. Holb
Summary: Adequate chill is crucial for deciduous fruit trees, but temperate fruit trees in warm winter regions face challenges with dormancy and chilling requirements under climate change. The review discusses the effects of climate change on these parameters and the development of models to improve adaptation in tropical and subtropical environments.
Article
Multidisciplinary Sciences
Hyeon Min Kim, Jun Hyeok Kim, Jae Hyeon Lee, Gun Mo Kim, Mi Hyun Lee, Chung Youl Park, Do Hyun Kim, Da Hyun Lee, Kyeong Min Kim, Chae Sun Na
Summary: This study investigated the dormancy-release and germination characteristics of Korean bellflower seeds, and found that the use of GA(3) and short-term cold stratification can effectively propagate the seeds.
Article
Horticulture
Javier Sanchez, Francisco Albornoz, Samuel Contreras
Summary: This study investigated the effect of nitrogen fertilization on tomato seed yield and quality. The results showed that increasing nitrogen fertilization led to a decrease in seed weight, but had no effect on standard germination and mean germination time. The germination percentage and rate decreased when seeds were immersed in solutions with reduced osmotic potential, but this effect was less pronounced in seeds from the high nitrogen treatment. Additionally, seeds from the high nitrogen treatment exhibited greater longevity when evaluated after accelerated aging.
Article
Biochemistry & Molecular Biology
Giles Grainge, Kazumi Nakabayashi, Felipe Iza, Gerhard Leubner-Metzger, Tina Steinbrecher
Summary: Limited light availability affects seed germination timing and percentage. Seed industries are exploring interventions to mitigate this risk, and one area of research is water treated with gas plasma. However, there is limited understanding of how this solution influences seed dormancy mechanisms and photoreceptor-driven germination. This study investigated the effects of gas plasma-treated water on seed germination under low light intensities and described the impact on key physiological regulators.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Review
Plant Sciences
Qinsong Yang, Yuhao Gao, Xinyue Wu, Takaya Moriguchi, Songling Bai, Yuanwen Teng
Summary: This review focuses on the molecular regulation of endodormancy induction, maintenance, and release in floral buds of deciduous fruit trees, as well as recent advances in quantitative trait loci analysis of chilling requirements. The discussion includes phytohormones, epigenetic regulation, and the molecular network controlling endodormancy, centered on SVP and DAM genes. Understanding endodormancy can help in creating new cultivars with different chilling requirements.
HORTICULTURE RESEARCH
(2021)
Article
Forestry
Kangming An, Minghan Yang, Carol Caudle Baskin, Mingyue Li, Meiru Zhu, Chunjing Jiao, Haibo Wu, Peng Zhang
Summary: Fraxinus chinensis subsp. rhynchophylla, an important timber species in northeast China, has nondeep physiological dormancy in its seeds, which can be broken by cold stratification and promotes germination.
Article
Biochemistry & Molecular Biology
Bing Li, Pan Zhang, Fengdan Wang, Ran Li, Jian Liu, Qiannan Wang, Wei Liu, Bo Wang, Guofu Hu
Summary: The study used transcriptomic and metabolomic analysis to investigate the changes in genes and metabolites associated with seed dormancy release induced by GA(3) in Leymus chinensis, identifying starch and sucrose metabolism as a key pathway and providing new insights into the molecular mechanism of dormancy release.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)