Article
Horticulture
Wilmer Tezara, Tania S. Torres Dominguez, Daniel W. Loyaga, Rene Nazareno Ortiz, Victor H. Reynel Chila, Milton J. Bolanos Ortega
Summary: The study on oil palm seedlings of G and OG genotypes revealed that water deficit led to reductions in leaf relative water content, photosynthetic rate, stomatal conductance, transpiration rate, and water use efficiency. The response of gas exchange and biochemical related variables to water deficit was dual-phased, with stomatal closure being the initial response followed by a reduction in biochemical photosynthetic capacity.
SCIENTIA HORTICULTURAE
(2021)
Article
Plant Sciences
Siew-Eng Ooi, Ishak Feshah, Azimi Nuraziyan, Norashikin Sarpan, Nabeel Ata, Chin-Ching Lim, Chin-Nee Choo, Wei-Chee Wong, Foo-Hin Wong, Choo-Kien Wong, Meilina Ong-Abdullah
Summary: This study identified potential embryogenic oil palms through leaf transcriptomic analysis and found that genes involved in flowering time and light responses may be associated with somatic embryogenesis potential. The research also showed that machine learning approaches with candidate genes could create a more sensitive model to differentiate between non-embryogenic and embryogenic oil palms.
PLANT CELL REPORTS
(2021)
Article
Agronomy
Manorama Kamireddy, Sanjib K. Behera, Suresh Kancherla
Summary: This study aimed to assess soil fertility status, establish optimal leaf nutrient concentrations, and identify yield restrictive nutrients in oil palm plantations in the Krishna River basin in Andhra Pradesh, India. The results showed that nitrogen and boron were the major yield limiting factors in this region.
Review
Plant Sciences
Shey-Li Lim, Sreeramanan Subramaniam, Md Abdul Baset Mia, Abdul Rahman Siti Rahmah, Amir Hamzah Ahmad Ghazali
Summary: Continuous discovery of novel in vitro plant culture practices is crucial for better plant growth in a shorter period. Using Plant Growth Promoting Rhizobacteria (PGPR) in the biotization process allows for sustained populations and improved tolerance to stresses, reducing mortality rates. Understanding the mechanisms and evaluating biochemical activities are essential for studying in vitro plant-microbe interactions. This review provides an overview of the in vitro oil palm plant-microbe symbiosis system.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agricultural Engineering
Jumat Salimon, Nadia Salih
Summary: Green renewable biolubricants base stock based on polyol triester of epoxidized Malaysian Elaeis guineensis palm kernel oil and trimethylolpropane was produced and optimized using response surface methodology. The optimal condition for the epoxidation process was achieved, resulting in a high epoxide yield of 92.5% and excellent lubrication properties of EPKO-TMPE. Tribological assessments showed that EPKO-TMPE exhibited low coefficients of friction in the hydrodynamic region and was comparable to marketable lubricants.
BIOMASS & BIOENERGY
(2023)
Article
Agronomy
Rodrigo da Silva Maia, Steel Silva Vasconcelos, Arleu Barbosa Viana-Junior, Debora Cristina Castellani, Osvaldo Ryohei Kato
Summary: The study found that oil palm planted in biodiverse agroforestry systems had 3 times higher arbuscular mycorrhizal colonization compared to monocultures, indicating that biodiverse agroforestry systems can increase mycorrhizal colonization of oil palms.
AGROFORESTRY SYSTEMS
(2021)
Article
Plant Sciences
Marek Renco, Nikoletta Ntalli, Trifone D'Addabbo
Summary: The study showed that different species of Medicago plant materials have significant effects on soil nematofauna, reducing the numbers of plant-parasitic nematodes and root fungal feeders, while increasing the abundance of bacterivores.
Article
Agricultural Engineering
Wagner Romulo Lima Lopes Filho, Flavio Henrique Santos Rodrigues, Izabely Vitoria Lucas Ferreira, Lorena Oliveira Correa, Roberto Lisboa Cunha, Hugo Alves Pinheiro
Summary: The study reveals that repetitive water deficit events induce acclimation of the photosynthetic machinery in oil palm through adjustments in various parameters related to photosynthesis and by attenuating oxidative damages, helping the plants adapt to this environmental stress.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Plant Sciences
Yifei Wang, Jixin Zou, Jin Zhao, Yusheng Zheng, Dongdong Li
Summary: EgMADS16, a MADS-box transcription factor in oil palm, is highly expressed during late fruit development and is predicted to be targeted by EgmiR5179. Experimental results suggest that EgMADS16 expression is downregulated by EgmiR5179, impacting lipid metabolism in oil palm.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Hernan Mauricio Romero, Stephany Guataquira, Diana Carolina Forero
Summary: Environmental conditions play a crucial role in the growth and productivity of crops, particularly through the process of photosynthesis using solar radiation. Factors such as leaf area, light interception, and photosynthetic performance affect crop growth and yield. The canopy extinction coefficient and planting density have significant impacts on crop growth and yield.
Article
Environmental Sciences
Bertrand F. Nero, Reginald T. Guuroh
Summary: This study examined the accumulation of potentially toxic elements (PTE) in oil palm biomass, fruits, and soils. The results showed that PTE concentrations in the palm roots were significantly higher than in the soil, and the concentration of arsenic in the fruits was also significantly higher than in the soil. Soil pollution indices and enrichment factors were significantly higher in the tailings dam and reclaimed sites compared to the control sites. The bioaccumulation factors in the palm roots were significantly higher than in the leaves and fruits, and translocation rates were high in both study locations. The accumulation of PTE in the palm biomass reduced soil concentrations, but the soils were still severely polluted. The high levels of arsenic in the fruits may contaminate the food chain and pose health risks to human populations.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Biochemistry & Molecular Biology
Philipp Gutbrod, Sophie Reichert, Katharina Gutbrod, Amazigh Hamai, Claire Brehelin, Georges Ngando-Ebongue, Peter Doermann
Summary: The African Oil Palm is a crucial oil crop for food, feed, and biotechnological applications. Research has identified significant amounts of fatty acid phytyl esters and fatty acid geranylgeranyl esters in the mesocarp and kernel tissues of the fruit, providing additional metabolic sources for fatty acids and alcohols. Enzymatic reactions were shown to be involved in the synthesis of these compounds, with potential implications for carotenoids and tocotrienols production.
Article
Biochemical Research Methods
Sau-Yee Kok, Parameswari Namasivayam, Gwendoline Cheng-Lian Ee, Meilina Ong-Abdullah
Summary: A comparative proteomic approach was used to study protein changes in early oil palm fruit development, identifying potential candidates in energy metabolism, stress responses, and cell structure. Transcript and protein profiles were parallel across developmental stages, with some divergent expression observed in specific protein spots. This study provides valuable information on physiological processes during early oil palm fruit development and can contribute to improving fruit quality traits.
JOURNAL OF PROTEOMICS
(2021)
Article
Chemistry, Applied
Ardha Apriyanto, Julia Compart, Vincent Zimmermann, Saleh Alseekh, Alisdair R. Fernie, Joerg Fettke
Summary: Oil palm is the most productive oil-producing crop and accumulates the highest amount of oil in its fruit. Comparative analysis of high-, medium-, and low-yielding oil palms revealed unique characteristics during fruit development. Metabolomics analysis showed that starch and sucrose can be used as novel biomarkers for oil yield, as there were significant differences in starch parameters and sucrose levels among different yield categories.
Article
Agricultural Engineering
Dapeng Zhang, Peng Shi, Yin M. Htwe, Zhiying Li, Leonard O. Ihase, Annaliese S. Mason, Xiwei Sun, Yong Xiao, Yong Wang
Summary: The study revealed that certain metabolites, particularly caffeate, are specifically accumulated in somatic embryos of oil palm. Caffeate was found to have significant correlations with phytohormone signaling genes and somatic embryogenesis transcription factors, suggesting its importance in the mechanism of somatic embryogenesis in oil palm. Furthermore, staining and microscopic observation showed phenolic acids highly accumulate in the center of newly formed callus clusters, indicating their role in somatic embryo development.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Agronomy
Onja Ratsiatosika, Malalatiana Razafindrakoto, Tantely Razafimbelo, Michel Rabenarivo, Thierry Becquer, Laetitia Bernard, Jean Trap, Eric Blanchart
Summary: The study demonstrated that earthworm inoculation had significant effects on soil and plant properties, with a greater increase in soil macroaggregation, aboveground biomass, rice grain yield, and N grain amount.
Article
Soil Science
O. Ratsiatosika, E. Blanchart, T. Razafimbelo, M. Razafindrakoto, K. vom Brocke, T- Cao-Hamadou, J-M Rakotomalala Andriamarosata, A. Ramanantsoanirina, J. Trap
Summary: This study evaluated the response of six upland rice cultivars commonly used in the Highlands of Madagascar to the presence of endogeic earthworms, finding that the presence of earthworms significantly improved plant nutrition and growth-related traits for all cultivars. However, the magnitudes of these effects varied between cultivars. Additionally, no significant correlations were found between cultivar responses to earthworm inoculation and agronomic or phylogenetic distances, suggesting that the ability of rice to exploit beneficial interactions involving freeliving soil organisms is influenced by genetic background.
APPLIED SOIL ECOLOGY
(2021)
Article
Soil Science
Jean Trap, Eric Blanchart, Onja Ratsiatosika, Malalatiana Razafindrakoto, Thierry Becquer, Andry Andriamananjara, Christian Morel
Summary: The study demonstrated that the endogeic earthworm Pontoscolex corethrurus significantly increased rice shoot biomass and P nutrition in P-deficient Ferralsol soil. The calculation of L-value is subject to various uncertainties, which should be considered in further research.
APPLIED SOIL ECOLOGY
(2021)
Article
Agronomy
Bernard Pierre Dufour, I. Wayan Kerana, Fabienne Ribeyre
Summary: In the Toba Highlands of North Sumatra, coffee production is important for smallholders, but the attack of the coffee berry borer hinders its development. The study shows that the phenology of the coffee tree plays a crucial role in the bioecology of the pest, and the year-round presence of berries fosters CBB infestations and short-distance dispersal in the agro-climatic context of the region. It is essential to consider this constraint when designing future pest management measures.
Article
Ecology
Anne-Cecile Vain, Nancy Rakotondrazafy, Kanto Razanamalala, Jean Trap, Claire Marsden, Eric Blanchart, Laetitia Bernard
Summary: Positive Priming Effect is defined as the acceleration of soil organic matter decomposition by fresh organic matter input. Its impact depends on the nature of the targeted organic matter pool and the ratio between the incorporation of primed carbon into microbial biomass and its mineralization.
EUROPEAN JOURNAL OF SOIL BIOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Jean Trap, Mahafaka Patricia Ranoarisoa, Sariaka Raharijaona, Lilia Rabeharisoa, Claude Plassard, El Hassan Mayad, Laetitia Bernard, Thierry Becquer, Eric Blanchart
Summary: Free-living nematodes have beneficial effects on plant growth and nutrition, especially in fields with high plant diversity. The intact soil core technique proves to be a robust means of mimicking field conditions and is a promising tool to assess the effects of ecological intensification of agricultural practices on soil processes.
Article
Agronomy
Isabelle Merle, Rogelio Villarreyna-Acuna, Fabienne Ribeyre, Olivier Roupsard, Christian Cilas, Jacques Avelino
Summary: In Central America, coffee is mainly grown in agroforestry systems under the influence of a single shade tree species common in the region. The microclimate variables in these systems are mainly influenced by meteorological variables, with shade tree characteristics also playing a role in modifying the microclimate. By developing simple models explaining these relationships, it may be possible to design and manage agroforestry systems effectively and incorporate more accurate models into early warning systems for coffee pests and diseases in the region.
EUROPEAN JOURNAL OF AGRONOMY
(2022)
Article
Environmental Sciences
Narindra H. Rakotovao, Angelina R. Rasoarinaivo, Tantely Razafimbelo, Eric Blanchart, Alain Albrecht
Summary: Agroforestry systems have the potential to store carbon in soils, benefiting farmers' livelihoods and addressing soil degradation issues. The age of the system and type of organic inputs significantly affect soil organic carbon stocks, with regular additions of organic matter leading to significant increases in soil organic carbon storage.
REGIONAL ENVIRONMENTAL CHANGE
(2022)
Article
Ecology
Patrick Lavelle, Jerome Mathieu, Alister Spain, George Brown, Carlos Fragoso, Emmanuel Lapied, Adriana De Aquino, Isabelle Barois, Edmundo Barrios, Maria Eleusa Barros, Jose Camilo Bedano, Eric Blanchart, Mark Caulfield, Yamileth Chagueza, Jun Dai, Thibaud Decaens, Anahi Dominguez, Yamileth Dominguez, Alexander Feijoo, Patricia Folgarait, Steven J. Fonte, Norma Gorosito, Esperanza Huerta, Juan Jose Jimenez, Courtland Kelly, Gladys Loranger, Robelio Marchao, Raphael Marichal, Catarina Praxedes, Leonardo Rodriguez, Guillaume Rousseau, Laurent Rousseau, Nuria Ruiz, Catalina Sanabria, Juan Carlos Suarez, Jerome Ebagnerin Tondoh, Anne De Valenca, Steven J. Vanek, Joel Vasquez, Elena Velasquez, Emily Webster, Chi Zhang
Summary: Soil macroinvertebrate communities respond to climatic, soil, and land-cover conditions. Different taxa are distributed under a wide range of geographical and environmental conditions, and agricultural practices have an impact on their abundance.
GLOBAL ECOLOGY AND BIOGEOGRAPHY
(2022)
Article
Soil Science
Tantely Razafimbelo, Alain Albrecht, Thierry Becquer, Laetitia Bernard, Tiphaine Chevallier, Amandine Erktan, Lydie Chapuis-Lardy, Jean Trap, Andry Andriamananjara, Michel Rabenarivo, Tovonarivo Rafolisy, Tovohery Rakotoson, Nandrianina Ramifehiarivo, Malatiana Razafindrakoto, Eric Blanchart
Article
Agronomy
Angelina Rondrotsifantenana Rasoarinaivo, Tantely Maminiaina Razafimbelo, Eric Blanchart, Lydie Chapuis-Lardy, Tiphaine Chevallier, Jean-Pierre Bouillet, Jean Trap
Summary: This study investigated the contribution of different tree species to soil carbon sequestration in rainfed rice-based agroforestry in the Highlands of Madagascar. The results showed that Eucalyptus robusta had the highest tree-derived carbon values, while Citrus clementina had the lowest contribution. The presence of rice did not affect the growth of tree seedlings or their ability to provide carbon to the soil. The difference in soil carbon sequestration among tree species was correlated with differential root biomass. This study highlights the importance of considering tree species in agroforestry systems for soil carbon sequestration.
Article
Multidisciplinary Sciences
Manoa Raminoarison, Eric Blanchart, Tantely Razafimbelo, Laurent Thuries, Jean Trap
Summary: This study aimed to understand the characteristics of fertilization resources and their effects on carbon and nitrogen mineralization in soil. The nutrient contents and biochemical quality of fertilization resources from local farmers, laboratory institutions, and commercial producers were evaluated. The findings provide a basic understanding of the application of fertilization resources to improve soil functions and crop productivity.
Article
Environmental Sciences
Celine Laurent, Matthieu N. Bravin, Eric Blanchart, Olivier Crouzet, Celine Pelosi, Isabelle Lamy
Summary: This study assessed the effects of long-term organic fertilizer (OF) applications on copper (Cu) and zinc (Zn) availability in earthworm-inhabited soils and the bioavailability of Cu and Zn to earthworms. The results showed that OF increased soil pH and dissolved organic matter properties, resulting in a reduction of Cu and Zn availability in the soil. Earthworm bioturbation had little effect on these factors. The findings suggest that decade-long agronomically realistic applications of OF do not pose a risk to earthworms in terms of Cu and Zn accumulation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Agronomy
Houssem E. M. Triki, Fabienne Ribeyre, Fabrice Pinard, Marc Jaeger
Summary: Coupling plant growth models with pests and diseases models is a challenging task, but the MIMIC framework provides a solution with various coupling options and powerful tools for designing interactions.
