Article
Horticulture
Un-Seop Shin, Da-Hyun Lee, Young-Ho Jung, Jun-Hyeok Kim, Chae-Sun Na
Summary: This study aimed to investigate the germination characteristics and dormancy types in Maianthemum dilatatum. The results showed that the dormancy of M. dilatatum seeds can be broken by cold stratification treatment and dark conditions.
Article
Horticulture
Saeng Geul Baek, Jin Hyun Im, Myeong Ja Kwak, Cho Hee Park, Mi Hyun Lee, Chae Sun Na, Su Young Woo
Summary: This study aimed to determine the type of seed dormancy for Lysimachia coreana Nakai and concluded that the seeds have a non-deep physiological dormancy. It was found that treatment with 250 mg/L GA(3) was more effective in breaking dormancy compared to cold stratification for efficient seed viability testing.
Article
Agronomy
Serap Kirmizi
Summary: This study evaluated the germination characteristics and dormancy of M. bourgaei seeds. The highest germination percentage was achieved after 12 months of moist chilling, while GA(3) application had limited effect on breaking dormancy. Additionally, sulfuric acid scarification did not promote seed germination.
Article
Forestry
Min Zhang, Jiaojun Zhu
Summary: This study elucidated the combined effects of light and temperature on dormancy release and germination of Pinus koraiensis seeds. It was found that at optimum temperatures, light facilitated seed germination and increased germination percentage and germination value.
JOURNAL OF FORESTRY RESEARCH
(2022)
Article
Horticulture
Do-Hyun Kim, Sang-Geun Kim, Hayan Lee, Chae-Sun Na, Do-Hyung Lee
Summary: This study aimed to investigate the seed germination of Berberis koreana Palibin. The results showed that the weight of the seeds increased significantly in 24 hours. Analysis of the seed's morphology revealed that the embryo was fully grown and did not grow further. Cold stratification for different lengths of time resulted in varying germination percentages. The GA3 treatment had limited effect on seed germination. The study concluded that B. koreana exhibits intermediate physiological seed dormancy.
Article
Plant Sciences
Shu Yu, Douglas Amaral, Patrick H. Brown, Louise Ferguson, Li Tian
Summary: This study investigated the physiological and biochemical responses of pistachio buds to increasing durations of winter chill. The degradation of callose and starch, along with the attenuation of ABA biosynthesis, were found to be critical processes driving bud endodormancy break in pistachio.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Hua Zhang, Xiaoli Zhang, Guoqing Gao, Izhar Ali, Xiaoyan Wu, Maoyan Tang, Lei Chen, Ligeng Jiang, Tianfeng Liang
Summary: This study evaluated the effects of different seed treatments on rice seedlings under low temperature conditions. The results showed that seed priming with GA(3) and BR improved germination rate and root and shoot length and weight, as well as increasing root volume and surface area. Seed priming also regulated antioxidant enzyme activities and maintained ABA, GA, MDA, soluble sugar, and protein content.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Horticulture
Da Hyun Lee, Chung Youl Park, Young Ho Jung, Jun Hyeok Kim, Sung Hyuk Park, Ho Jun Son, Chae Sun Na, Wan Geun Park
Summary: The aim of this study was to elucidate the seed-dormancy break and germination characteristics of Vaccinium oldhamii. The results showed that the seeds of V. oldhamii exhibited Nondeep physiological dormancy (Nondeep PD). Treatment with 500 ppm of GA(3) at 25/15 degrees C was able to effectively break the dormancy of V. oldhamii seeds. These findings provide convenience for further research on the species.
Article
Plant Sciences
Matthew Walker, Marta Perez, Tina Steinbrecher, Frances Gawthrop, Iva Pavlovic, Ondrej Novak, Danuse Tarkowska, Miroslav Strnad, Federica Marone, Kazumi Nakabayashi, Gerhard Leubner-Metzger
Summary: Morphological dormancy (MD) in celery is considered ancestral in seed dormancy evolution, with embryo growth and endosperm breakdown occurring inside imbibed fruits. The critical size for embryo growth and endosperm breakdown associated with ABA degradation constitute a unique germination program.
Article
Horticulture
Yuhan Zhang, Kaifeng Ma, Qingwei Li
Summary: This research determined the chilling requirements (CR) of four early flowering Prunus mume cultivars in Henan, China, using artificial low temperatures to break dormancy. It also measured the changes in carbohydrates, antioxidant enzyme activities, and hormone contents during low-temperature storage, and explored the physiological changes during the low-temperature induction period. The results showed that all four cultivars had low chilling demands, bloomed 4 months earlier than other cultivars, and exhibited specific physiological changes during the dormancy process.
Article
Agronomy
Lei Zhang, Chaohan Xu, Huina Liu, Jun Tao, Keliang Zhang
Summary: The timing of seed germination has a significant impact on plant fitness and life cycle. This study aimed to understand the dormancy type and identify the conditions necessary for breaking seed dormancy and promoting germination in Torilis scabra. The results showed that the seeds of T. scabra had non-deep simple morphophysiological dormancy and cold stratification and GA(3) treatment were effective in breaking dormancy.
Article
Agronomy
Nurgul Ergin, Muhammed Fatih Kaya, Mehmet Demir Kaya
Summary: In this study, the researchers successfully overcame germination inability in wild castor bean seeds by treating them with different concentrations of gibberellic acid (GA3) and potassium nitrate (KNO3). Removing the caruncle significantly improved germination and seedling growth, while application of KNO3 shortened germination time and GA3 promoted root elongation. Soaking the seeds also had a stimulative effect on seedling weight and dry matter.
SEED SCIENCE AND TECHNOLOGY
(2022)
Article
Agronomy
Khaled Saifullah, Alwyn Williams, Steve Adkins
Summary: Spider plant (Cleome gynandra L.) is an emerging noxious weed in Queensland, Australia, affecting cultivated vegetables. The seed of spider plant has negative photoblastic and combinational dormancy, but its germination can be improved by physical scarification, dry storage, and gibberellic acid treatment.
Article
Biochemistry & Molecular Biology
Ruth R. Finkelstein, Tim J. Lynch
Summary: Abscisic acid (ABA) and gibberellic acid (GA) have antagonistic effects on plant growth and are regulated by a complex network of transcription regulators. The AFP family of proteins is a repressor of ABA response and also interacts antagonistically with DELLA proteins.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Elina Yankova-Tsvetkova, Maria Petrova, Irena Grigorova, Boryanka Traykova, Marina Stanilova
Summary: The study aimed to increase the seed germination rate of Primula veris and establish a cultivation field. The combination of blue light and GA(3) treatment showed the best results. The seedlings were successfully transferred to the field and bloomed.
Article
Ecology
Filip Vandelook, Steven B. Janssens, Diethart Matthies
Article
Plant Sciences
Filip Vandelook, Ann Van de Vyver, Angelino Carta
Article
Plant Sciences
Simon Kallow, Kevin Longin, Natalia Fanega Sleziak, Steven B. Janssens, Filip Vandelook, John Dickie, Rony Swennen, Janet Paofa, Sebastien Carpentier, Bart Panis
Article
Plant Sciences
Eduardo Fernandez-Pascual, Angelino Carta, Andrea Mondoni, Lohengrin A. Cavieres, Sergey Rosbakh, Susanna Venn, Annisa Satyanti, Lydia Guja, Veronica F. Briceno, Filip Vandelook, Efisio Mattana, Arne Saatkamp, Haiyan Bu, Karen Sommerville, Peter Poschlod, Kun Liu, Adrienne Nicotra, Borja Jimenez-Alfaro
Summary: Assumptions about the germination ecology of alpine plants are currently based on individual species and local studies, but a meta-analysis of primary data across four continents suggests that most alpine plants have similar seed germination patterns, with strong requirements for cold stratification and positive responses to temperature and light cues.
Article
Biodiversity Conservation
Arne Mertens, Rony Swennen, Nina Ronsted, Filip Vandelook, Bart Panis, Gabriel Sachter-Smith, Dang Toan Vu, Steven B. Janssens
Summary: This study examines the distribution, risk, and conservation status of wild banana species, finding that 11 out of 59 assessed species are vulnerable and nine are endangered. The northern Indo-Burmese region is identified as having the highest environmental suitability for most wild banana species. Assessments show that the conservation of the banana CWR is currently insufficient both in and ex situ.
DIVERSITY AND DISTRIBUTIONS
(2021)
Article
Ecology
Simon Kallow, Katrijn Quaghebeur, Bart Panis, Steven B. Janssens, John Dickie, Lavernee Gueco, Rony Swennen, Filip Vandelook
Summary: Ecologically meaningful seed germination experiments are often limited by access to seeds and relevant testing environments. This study demonstrates the use of glasshouses in botanic gardens as simulated-natural habitats to expand the ecological interpretation of germination studies, particularly for species studied far from their native areas. The experiments showed that seeds responded to direct solar radiation for germination, with seed burial depth having a marginal effect, while temperature dynamics played a significant role in germination responses.
ECOLOGY AND EVOLUTION
(2021)
Article
Agronomy
Simon Kallow, Arne Mertens, Steven B. Janssens, Filip Vandelook, John Dickie, Rony Swennen, Bart Panis
Summary: Storing seed collections of crop wild relatives is crucial for global food security. However, banana and plantain crop wild relatives are under-represented in genebanks. The low viability of seed accessions presents challenges in seed storage and processing. Constraints in banana genetic resource conservation include difficulties in finding suitable material, lack of knowledge regarding storage and germination conditions.
FOOD AND ENERGY SECURITY
(2022)
Article
Agronomy
Arne Mertens, Yves Bawin, Samuel Vanden Abeele, Simon Kallow, Rony Swennen, Dang Toan Vu, Tuong Dang Vu, Ho Thi Minh, Bart Panis, Filip Vandelook, Steven B. Janssens
Summary: This study focused on the genetic structure of Musa balbisiana, one of the main progenitor species of many banana cultivars. The results showed that the genetic diversity of M. balbisiana in ex situ collections is low compared to wild populations. The study emphasizes the importance of collecting more germplasm from the species' native distribution range for conservation and cultivation purposes.
GENETIC RESOURCES AND CROP EVOLUTION
(2022)
Article
Plant Sciences
Angelino Carta, Efisio Mattana, John Dickie, Filip Vandelook
Summary: Seeds and genome sizes show evolutionary correlation influenced by life forms in angiosperms. Different life forms have different optimal values and covariance relationships for seed mass and genome size evolution. The strongest evolutionary correlation between seed mass and genome size is found in annuals, serving as an adaptation to complete their life cycle quickly under favorable environmental conditions.
SEED SCIENCE RESEARCH
(2022)
Article
Ecology
Jonas Depecker, Justin A. Asimonyio, Ronald Miteho, Yves Hatangi, Jean-Leon Kambale, Lauren Verleysen, Piet Stoffelen, Steven B. Janssens, Benoit Dhed'a, Filip Vandelook, Olivier Honnay
Summary: Forests in the Congo Basin, despite their crucial role in biodiversity conservation, are facing increasing threats from human activities. It is challenging to assess the impact of forest degradation under an intact canopy. Similarly, the process of forest recovery after agricultural abandonment remains poorly understood in the region. This study found that undisturbed old-growth forests have higher tree density and species richness with higher wood density compared to disturbed old-growth forests. Although species diversity has recovered since recent agricultural abandonment, the community composition and forest structure remained significantly different from undisturbed old-growth forests. This study highlights the importance of conserving the remaining relatively undisturbed old-growth forests and the need for extensive vegetation surveys to understand the effects of anthropogenic disturbance in the Congo Basin.
JOURNAL OF TROPICAL ECOLOGY
(2022)
Article
Plant Sciences
Sergey Rosbakh, Angelino Carta, Eduardo Fernandez-Pascual, Shyam S. Phartyal, Roberta L. C. Dayrell, Efisio Mattana, Arne Saatkamp, Filip Vandelook, Jerry Baskin, Carol Baskin
Summary: Seed dormancy is influenced by climate and environmental conditions. Different types of seed dormancy, such as physiological, morphophysiological, and physical dormancy, are found in different biomes and climates. However, these environmental factors have a relatively low predictive power in explaining the distribution of seed dormancy, indicating that other global drivers are also important.
Article
Plant Sciences
Simon Kallow, Rachael Davies, Bart Panis, Steven B. Janssens, Filip Vandelook, Arne Mertens, Rony Swennen, Maimun Binti Tahir, John Dickie
SEED SCIENCE RESEARCH
(2020)
Article
Plant Sciences
Filip Vandelook, Nele Bolle, Jozef A. Van Assche
SEED SCIENCE RESEARCH
(2007)
Article
Plant Sciences
Filip Vandelook, Nele Bolle, Jozef A. Van Assche