Article
Plant Sciences
Jia Xin Yap, Yuichiro Tsuchiya
Summary: The root parasitic plant Striga hermonthica senses strigolactones from host plants to germinate. It has been found that the plant hormone gibberellins increase the sensitivity of Striga seeds to strigolactones by up-regulating the expression of strigolactone receptors. This reveals the indirect role of gibberellins in seed germination in Striga compared to their dominant role in non-parasitic plants.
PLANT AND CELL PHYSIOLOGY
(2023)
Article
Plant Sciences
Cassio Hamilton Abreu-Junior, Gabriel Asa Correa Gruberger, Paulo Henrique Silveira Cardoso, Paula Wellen Barbosa Goncalves, Thiago Assis Rodrigues Nogueira, Gian Franco Capra, Arun Dilipkumar Jani
Summary: Biological nitrogen fixation in soybean can be enhanced by treating the seeds with cobalt (Co) and molybdenum (Mo) before planting. This study aimed to determine if Co and Mo application during the reproductive phase of soybean increases seed Co and Mo concentration without negatively affecting seed quality. Two experiments were conducted, one investigating foliar and soil application of Co and Mo, and the other validating the results. The results showed that foliar application was more effective in enriching the seed with Co and Mo, and higher Co doses resulted in higher concentrations of Co and Mo in the seed. Applying these micronutrients did not have adverse effects on the nutrition, development, quality, and yield of parent plants and seed, and the treated seed showed improved germination, vigor, and uniformity for soybean seedling development. Based on these findings, it was concluded that foliar application of 20 g ha(-1) Co and 800 g ha(-1) Mo during the reproductive stage of soybean can increase germination rate and promote optimal growth and vigor of enriched seed.
Article
Plant Sciences
Willian Nogueira de Sousa, Nayane Fonseca Brito, Cristina Aledi Felsemburgh, Thiago Almeida Vieira, Denise Castro Lustosa
Summary: The study revealed that isolates of Trichoderma spp. have positive effects on seed treatment and seedling production of Theobroma cacao, increasing radicle and hypocotyl lengths and decreasing fungi incidence in seeds. Inoculation with Trichoderma can enhance the growth performance of seedlings, making it an effective approach for seed production and seedling cultivation.
Review
Horticulture
Chenyin Peng, Yu Wu, Fenghou Shi, Yongbao Shen
Summary: Certain substances called germination inhibitors can inhibit the germination of seeds. They can be classified as germination destructors or germination retarders, with the former causing harm to the seed and the latter being closely related to seed dormancy. These inhibitors have important applications in seed preservation and herbicide use.
Article
Plant Sciences
Frantisek Bednarik, Katerina Houskova, Lena Bezdeckova, Oldrich Mauer
Summary: The aim of this study was to investigate the suitability of seed fermentation as a pre-sowing treatment for small-leaved lime. The results showed that fermented seed had lower levels of abscisic acid, higher germination capacity, and improved morphological parameters compared to the control group.
Article
Agronomy
Ondrej Szabo, Martin Pisarcik, Zuzana Hrevusova, Josef Hakl
Summary: The study aimed to investigate the effects of different seed treatments on lucerne germination and seedling growth. Results showed that potassium permanganate and chitosan priming methods had a positive impact on seedling length and emergence dynamics, while bentonite and gypsum coating methods were beneficial for root development.
Editorial Material
Plant Sciences
Galina Smolikova, Sergei Medvedev
Summary: The transition from seed to seedling is a crucial stage in the life cycle of plants, involving tissue hydration, mobilization of nutrients, and activation of metabolic activity in seeds. This process requires extensive reprogramming of genetic, epigenetic, and hormonal switches, leading to the activation of vegetative growth genes and silencing of seed maturation genes.
Article
Plant Sciences
Gaetano Bissoli, Mar Bono, Irene Martinez-Almonacid, Estela Moreno-Peris, Joan Renard, Ana Espinosa, Miguel Angel Naranjo, Lynne Yenush, Ana Fita, Ramon Serrano, Adrian Rodriguez-Burruezo, Eduardo Bueso
Summary: This study found that wild or less domesticated Capsicum species showed higher germination rates after accelerated seed aging treatments compared to more domesticated varieties. Variability was observed in the expression of genes involved in response to seed deterioration, with faster mobilization of seed storage proteins in aging-resistant genotypes. Lignin content in the seed coat was positively correlated with seed viability.
PHYSIOLOGIA PLANTARUM
(2022)
Article
Biodiversity Conservation
Brooke K. Sullivan, Michael Keough, Laura L. Govers
Summary: This study found that treatment with copper sulphate promotes seed germination and seedling growth in H. nigricaulis, improving seedling development and success. This discovery will enhance seagrass restoration strategies.
GLOBAL ECOLOGY AND CONSERVATION
(2022)
Article
Environmental Sciences
Muhammad Kamran, Dan Wang, Kaizhi Xie, Yusheng Lu, Chaohong Shi, Ayman EL Sabagh, Wenjie Gu, Peizhi Xu
Summary: The study demonstrated that plant growth regulators kinetin and calcium could partially mitigate the inhibitory effects of salt stress on the germination and growth of choy sum seeds by increasing certain biochemical parameters to reduce salt-induced oxidative damages.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Agronomy
Li Dai, Yanwei Chen, Xiaoli Wei
Summary: This study explored the characteristics of the hard seeds and the difference in seed vigor between hard seeds and non-hard seeds of O. hosiei. It was found that the hard and dense seed coat of O. hosiei seeds hindered water absorption due to impermeability. Hot water treatment and concentrated sulfuric acid treatment were effective in breaking the dormancy of hard seeds, with the latter being more effective but causing irreversible damage to the seed coat. Hard seeds showed higher germination, root activity, and certain biochemical substances compared to non-hard seeds.
Article
Plant Sciences
Yongjie Liu, Shuang Zhang, Hans J. De Boeck, Fujiang Hou
Summary: Temperature and salinity have significant effects on seed germination, but the sensitivity to these factors varies among plant species. Festuca arundinacea is less sensitive to temperature and salinity, while Bromus inermis and Elymus breviaristatus are sensitive to high salinity levels. These findings can enhance our understanding of seed germination in saline soils under changing climate conditions.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Agronomy
Yali Xie, Lihui Wei, Yinghua Ji, Shuo Li
Summary: In this study, the effect of seed treatment with iron chlorine e6 (ICE6) on rice germination and seedling growth was evaluated. The results showed that seed soaking with ICE6 improved rice seed germination, promoted seedling growth, and increased chlorophyll content in plants. The optimal soaking condition was found to be a concentration of 100-200 mg/L and a time of 24-48 hours. The field experiment further demonstrated the growth regulating effect of ICE6 priming on rice seedlings, suggesting its potential application in rice production.
Article
Forestry
Muhammet Tonguc, Sercan Onder, Nesrin Gulcemal, Fatih Tonguc
Summary: Turkish red pine, an important pine species, grows at a wide range of altitudes in the eastern Mediterranean area. The study found that altitudinal gradients have significant effects on the morphological and biochemical traits of the seeds, as well as the germination variables of Turkish red pine.
JOURNAL OF FORESTRY RESEARCH
(2022)
Article
Plant Sciences
Esteban Ramirez, Zayneb Chaabene, Lourdes Hernandez-Apaolaza, Mariem Rekik, Amine Elleuch, Vicenta de la Fuente
Summary: The study aimed to optimize the germination process of Arthrocnemum seeds using different pretreatments. The results showed that salt priming in darkness at a concentration of 600 mM NaCl improved germination percentages by approximately 25% in both Tunisian and Spanish species. Keeping seeds at different salt concentrations for 30 days produced higher improvement percentages at lower concentrations in A. meridionale (100-200 mM NaCl), while in A. macrostachyum the highest improvement percentages were obtained at 600 mM NaCl (percentage improvement of 47%). Reducing the dark time period to 5 days at higher salt concentrations (800 mM NaCl) resulted in higher germination percentages in all samples, increasing the improvement of germination between 17 and 50%. The optimal conditions for seed germination were found to be pH = 7, pretreatment in darkness at 800 mM NaCl, and 400 μM of iron.
Article
Agronomy
Josemar Foresti, Cristina S. Bastos, Flavio L. Fernandes, Paulo R. da Silva
PEST MANAGEMENT SCIENCE
(2018)
Article
Agricultural Engineering
Christian Maximiano, Ricardo Carmona, Nara O. S. Souza, Ernandes R. de Alencar, Luiz E. B. Blum
REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL
(2018)
Article
Engineering, Environmental
Wallas Felippe de Souza Ferreira, Ernandes Rodrigues de Alencar, Luiz Eduardo Bassay Blum, Marcia de Aguiar Ferreira, Marcio Antonio Mendonca, Aline Mondini Calil Racanicci, Wilfredo Milquiades Irrazabal Urruchi
Summary: This study aimed to evaluate the decomposition kinetics of ozone in aqueous media containing Brazil nuts, investigate the inactivation of Aspergillus flavus by ozonation, and determine the changes in color and lipid profile of the nuts. The results showed that ozonation was more effective at controlling A. flavus in Brazil nuts when performed in an acidic pH environment. Additionally, while ozonation had an impact on the color of the nuts, it did not affect the fatty acid profile of the crude oil.
OZONE-SCIENCE & ENGINEERING
(2021)
Article
Agronomy
Elcio Antonio Paim, Antonio Macedo Dias, Allan T. Showler, Karolayne Lopes Campos, Andrea Aparecida Santos Oliveira, Pedro Paulo Castro Grillo, Cristina Schetino Bastos
Summary: The study demonstrates that altering row spacing can effectively reduce boll weevil infestations and improve yield and fiber quality in low-input systems in Brazil. Narrow row spacing was the least effective, while conventional and wide spacings delayed boll weevil control interventions and resulted in lower numbers of boll weevils early in the season.
Article
Entomology
Carlos Eduardo Almeida Luz, Vitor Zuim, Andrea Aparecida Santos Oliveira, Patricia de Jesus dos Santos, Karolayne Lopes Campos, Marcelo Mendes Haro, Lucia Madalena Vivan, Cristina Schetino Bastos, Raul Narciso Carvalho Guedes
Summary: The introduction of genetically modified crops expressing Bt insecticidal proteins has revolutionized insect pest management, but concerns remain about issues like Bt resistance and impacts on non-target arthropod species. A study in the Neotropical region found that Bt cotton did not significantly affect the associated arthropod community, raising questions about its effectiveness in controlling the main target pests.
JOURNAL OF APPLIED ENTOMOLOGY
(2022)
Article
Agronomy
Andrea A. S. Oliveira, Tamiris A. Araujo, Allan T. Showler, Ana C. A. Araujo, Igor S. Almeida, Renata S. A. Aguiar, Jose E. Miranda, Flavio L. Fernandes, Cristina S. Bastos
Summary: This study assessed the dispersal pattern of boll weevil in cotton fields during dry and wet seasons. The results showed that adult weevils and infested reproductive structures exhibited an aggregated distribution in both seasons. Infestations started at field borders and monitoring should focus on total infested reproductive structures.
PEST MANAGEMENT SCIENCE
(2022)
Article
Agronomy
Flavia M. Alves, Alfredo H. R. Gonring, Maria E. de S. Fernandes, Cristina S. Bastos, Flavio Lemes Fernandes
Summary: The objective of this study was to determine a sampling plan for monitoring Phthorimaea operculella infestations in potato fields. The study found that leaf 8 was the most representative and precise sampling unit for monitoring the pest. Based on the allowable precision error, 23 leaves per 10 ha plot were necessary for sampling.
Article
Ecology
Karolayne Lopes Campos, Cristina Schetino Bastos, Richard V. Sequeira, Jorge Braz Torres
Summary: We tested the effectiveness of systemic insecticides against sap-sucking insects and their impact on natural enemies. Cyantraniliprole and thiamethoxam were applied through foliar application (FA) and seed treatment (ST) to suppress cotton insect infestations and study their interaction with predatory insects. Residues of both insecticides were detected on ST plants but decreased significantly over time. Both insecticides effectively suppressed aphids, with thiamethoxam showing a longer-lasting effect. However, neither of the insecticides were effective against thrips infestations. Whitefly densities were controlled through ST. Cyantraniliprole was compatible with both predators, while thiamethoxam showed higher toxicity to one predator through FA than ST.
ARTHROPOD-PLANT INTERACTIONS
(2023)
Article
Entomology
Patricia J. Santos, Antonio M. Dias, Karolayne L. Campos, Ana C. A. Araujo, Andrea A. S. Oliveira, Fabio A. Suinaga, Jorge B. Torres, Cristina S. Bastos
Summary: Cotton is commonly cultivated in subtropical and seasonally dry tropical regions. The boll weevil, a beetle, poses a significant threat to cotton crops in the Americas, causing substantial yield losses. The planting dates of cotton plants can affect boll weevil infestation, with mid-planting dates being less favorable for weevil damage. Alternatives to broad-spectrum insecticide applications need to be explored for boll weevil management.
Article
Horticulture
Isaac L. de Almeida, Welinton F. Vieira, Nara O. S. Souza, Fabio A. Suinaga, Renato F. Amabile, Marcelo Fagioli
Summary: Desiccating herbicides can improve the uniformity of maturation and enable early harvest, leading to better quality seeds. This study evaluated the effects of herbicides on early harvest and physiological quality of chickpea seeds. The results showed that glufosinate at the dosage of 400 g a.i./ha was the most promising, significantly increasing germination to 83.75% and vigor to 78.25%, and allowing for a harvest anticipation of up to 17 days.
HORTICULTURA BRASILEIRA
(2023)
Article
Agriculture, Multidisciplinary
Ernandes Rodrigues de Alencar, Wilson Anchico Jojoa, Karine Noronha Silva, Nara Oliveira Silva Souza
Summary: This study aimed to evaluate the saturation process and kinetics of ozone decomposition in a porous medium composed of quinoa BRS Syetetuba, and possible changes in seed quality. The results showed that under the conditions of an inlet ozone concentration of 885 ppm and a flow rate of 5.0 L/min at 25 degrees C, the saturation concentration and time in the porous medium were 522.5 ppm and 12.0 min, respectively, with a half-life of 6.08 min. Ozonation did not affect the physiological quality of quinoa BRS Syetetuba seeds for up to 120 min.
SEMINA-CIENCIAS AGRARIAS
(2021)
Article
Engineering, Environmental
Natasha Ohanny da Costa Monteiro, Ernandes Rodrigues de Alencar, Nara Oliveira Silva Souza, Tairone Paiva Leao
Summary: This study aimed to evaluate the effects of hydropriming with ozone on the physiological quality and performance of corn seeds with different quality standards. The results showed that ozone treatment improved the physiological quality of corn seeds and promoted plant growth and development.
OZONE-SCIENCE & ENGINEERING
(2021)