Article
Plant Sciences
Pil Joon Seo, Hong Gil Lee, Hye-Young Choi, Sangmin Lee, Chung-Mo Park
Summary: Karrikins (KARs) are small butenolide compounds found in burning vegetation smoke, with stimulating effects on seed germination and regulation of seedling growth and adaptive behaviors. The SMAX1 signaling repressor plays central roles in these processes, integrating multiple growth hormone signals to optimize seedling establishment. This article summarizes the versatile roles of SMAX1 and discusses the evolutionary relevance of the SMAX1-mediated signaling pathways during the colonization of aquatic plants to terrestrial environments.
TRENDS IN PLANT SCIENCE
(2023)
Article
Multidisciplinary Sciences
Noah James Langenfeld, Bruce Bugbee
Summary: Germination and seedling establishment for hydroponics often use porous substrates, but the roots cannot be removed without damage. Germinating seeds on slant boards can reduce transplanting time and facilitate root development exposed to nutrient solution. This article describes the construction and procedures for rapid germination and transplanting in hydroponics using slant boards.
Article
Soil Science
Sebastian Blunk, Jennifer Bussell, Debbie Sparkes, Martine I. de Heer, Sacha J. Mooney, Craig J. Sturrock
Summary: Different tillage operations significantly impact seed-soil contact, but differences in seedbed porosity do not lead to significant differences in seed-soil contact and subsequent establishment.
SOIL & TILLAGE RESEARCH
(2021)
Article
Plant Sciences
Wenjing Yang, Daitianshu Xu, Shuying Li, Xiangru Tang, Shenggang Pan, Xiongfei Chen, Zhaowen Mo
Summary: Direct seeding of rice is an efficient and labor-saving planting method. Deep sowing may benefit rice, but also affect seed germination and seedling establishment. In an experiment, rice varieties tolerant to deep sowing were identified, with seedling establishment parameters significantly influenced by variety, sowing depth, and their interaction.
JOURNAL OF PLANT GROWTH REGULATION
(2022)
Article
Forestry
Mark R. Kreider, Larissa L. Yocom
Summary: Quaking aspen is an important component of western U.S. forests, and this study explored the spatial establishment patterns, survival, and growth of aspen seedlings following a large post-fire event in southern Utah. The study found that aspen seedlings were more likely to establish at higher elevations and closer to seed sources, preferred concave microsites, and were tightly associated with burned soil. Aspen seedling persistence was strongly impacted by competition with co-occurring aspen suckers, with survival lower for seedlings closer to nearby suckers and growth reduced in plots with high sucker density.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Entomology
Camila C. Filgueiras, Denis S. Willett
Summary: The lesser chestnut weevil is an emerging pest of chestnuts in the United States. Understanding its phenology and population monitoring methods are crucial for managing its impact on chestnut production. Pyramid traps are the most effective for monitoring, and the population tends to peak late in the season. The weevil may stagger its emergence and delay leaving the soil for multiple years.
Article
Forestry
Ping Zhang, Qingquan Zhao, Xiaoqian Ma, Ling Ma
Summary: The study revealed that Serratia marcescens Bizio significantly shortened the lifespan of hazelnut weevil, impacting larval weight and digestive enzyme activity. This bacterium destroyed midgut cells, interfered with digestive and protective enzymes, leading to reduced food intake and increased mortality of hazelnut weevil.
JOURNAL OF FORESTRY RESEARCH
(2021)
Article
Plant Sciences
M. A. Macedo, S. B. Pinhate, E. C. Bowen, C. Musso, H. S. Miranda
Summary: The effects of high temperatures on seed germination and seedling development vary among different tree species, with some showing reduced germination and smaller seedling mass when exposed to heat. This suggests a potential bottleneck effect on population dynamics and species persistence following fires.
Article
Agronomy
Rachid Hamidi, Julien Toillon, Maud Thomas
Summary: Hazelnut weevils can cause various types of damage to hazelnuts, including dropped nutlets, belted nuts, and blank nuts. Both the feeding activities of the weevils and the oviposition punctures can lead to embryo abortions. The major damages occur during kernel growth and when the hazelnut shell is almost fully developed.
Article
Agronomy
Senlin Xiao, Tianjun Xu, Yuandong Wang, Jinfeng Xing, Ronghuan Wang, Aiguo Su, Shuaishuai Wang, Wei Song, Jiuran Zhao
Summary: This study found that cold-tolerant maize varieties have higher germination rates and growth potential under low temperature conditions, with lower hydrogen peroxide content and higher activity of enzymes related to AsA-GSH recycling. Transcription profile analysis revealed increased expression of ZmVTC2 gene in cold-tolerant varieties, suggesting coordinated improvement of AsA biosynthesis and AsA-GSH recycling can increase total antioxidant capacity to alleviate oxidative stress during maize seed germination under low temperature.
Article
Plant Sciences
Kuo-Wei Lee, Jeremy J. W. Chen, Chung-Shen Wu, Ho-Chun Chang, Hong-Yue Chen, Hsin-Hao Kuo, Ya-Shan Lee, Yan-Lun Chang, Hung-Chia Chang, Shiau-Yu Shiue, Yi-Chen Wu, Yi-Cheng Ho, Peng-Wen Chen
Summary: This study reveals that excessive accumulation of IAA under dark submergence inhibits rice germination and seedling establishment. However, oxygen and light can reduce IAA levels, promote seedling establishment, and enhance rice tolerance to submergence.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Plant Sciences
Liz Koziol, Thomas P. McKenna, James D. Bever
Summary: This study investigated the effect of microbial communities on seedling biomass and diversity by seeding pots with native prairie seeds and a non-native competitor. The results showed that inoculating soil with prairie arbuscular mycorrhizal fungi and ex-arable soil increased abundance and diversity of native and late successional plants, leading to decreased abundance of the non-native grass S. faberi.
Article
Ecology
Crystal A. Guzman, Henry F. Howe, David H. Wise, Rosamond I. Coates, Jenny Zambrano
Summary: Grasses and rodents have complex effects on tree seedling establishment in tropical pastures, with different tree species responding differently to their interactions. Selective foraging by rodents on large-seeded persistent tree species may lead to suppression of seedlings, highlighting the importance of understanding these interactions for biodiversity conservation in regenerating landscapes.
Review
Plant Sciences
Shubhpriya Gupta, Karel Dolezal, Manoj G. Kulkarni, Ervin Balazs, Johannes Van Staden
Summary: The application of biostimulants is an innovative and promising strategy to improve crop productivity by promoting seed germination. This technique is considered simple, beneficial, and sustainable. However, the mechanisms involved in regulating seed germination and seedling establishment by non-microbial biostimulants are still unclear.
PLANT GROWTH REGULATION
(2022)
Article
Entomology
Tae Hyung Kwon, Byungho Lee, Junheon Kim
Summary: This study investigated the effectiveness of ethyl formate as a fumigant against Curculio sikkimensis in chestnuts, and found that it can achieve 100% mortality at the appropriate dose and fumigation time.