Article
Ecology
Hernan Botero, Andrew P. Barnes, Lisset Perez, David Rios, Julian Ramirez-Villegas
Summary: The study revealed that common bean producers in Santander are influenced by factors such as elevation, household composition, and seed certification when selecting varieties. Additionally, farmers prefer varieties with higher prices and shorter vegetative cycles, and tend to grow more than one variety in the same production cycle when receiving more help from family members and owning a tractor.
ECOLOGICAL ECONOMICS
(2021)
Article
Plant Sciences
Elena Delgado-Garcia, Pedro Piedras, Guadalupe Gomez-Baena, Isabel M. Garcia-Magdaleno, Manuel Pineda, Gregorio Galvez-Valdivieso
Summary: Nucleoside hydrolases play a crucial role in plant development by controlling the ratio between nucleotide salvage and degradation, providing substrates for ureide synthesis, and aiding in nutrient mobilization during germination and early seedling development.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Multidisciplinary Sciences
Kassahun Amare, Asmamaw Kassahun
Summary: Participatory variety selection is crucial in adopting improved crop varieties, as farmers' preferences must be considered. Evaluating common bean varieties in different agro-ecologies is essential, and in this study, high-yielding white common bean varieties were identified in South Gondar zone, Ethiopia. Among the evaluated varieties, Awash-2 emerged as a consistently preferred choice by farmers in both locations, showing promising potential for cultivation.
Article
Green & Sustainable Science & Technology
Eileen Bogweh Nchanji, Cosmas Kweyu Lutomia, Odhiambo Collins Ageyo, David Karanja, Eliezah Kamau
Summary: The study found that male and female farmers have slightly different preferences for varieties and traits, mainly influenced by gender roles and division of labor. Women farmers prefer local bean varieties, while men are more interested in market-oriented traits. However, different sociodemographic characteristics also impact trait preferences.
Article
Soil Science
Stephen A. Wood, Joseph C. Blankinship
Summary: Defining good soil has been a topic of interest for soil scientists, with various frameworks such as tilth, soil fertility, soil quality, soil security, and soil health emerging. While research on soil health parameters has provided insights into their response to land management, it has generated limited knowledge on how to manage lands to maximize environmental and agronomic benefits. This lack of insight is attributed to the underemphasis of important knowledge areas and the need for innovation in soil health measurements. This lack of practical knowledge poses risks for policy and practice in sustainable food systems.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Yayeh Bitew, Bitwoded Derebe, Abebe Worku, Gobezie Chakelie
Summary: Based on a maize-common bean intercropping experiment conducted in North western Ethiopia, it was found that spatial arrangement and planting date significantly affect the agronomic attributes of common bean. In Adet, planting common bean simultaneously with maize in a paired arrangement resulted in higher grain yield and land use efficiency, while in Finoteselam, intercropping common bean with maize at maize emergence in a paired arrangement showed the highest land use efficiency and profitability. Further research on the compatibility of different maize and common bean varieties in various spatial and temporal differentiations is recommended.
Article
Multidisciplinary Sciences
Yayeh Bitew, Bitwoded Derebe, Abebe Worku, Gobezie Chakelie
Summary: The study investigated the effects of spatial and temporal differentiation on agronomic attributes of common beans in maize-common bean intercropping system. It was found that planting common beans simultaneously with maize in paired planting pattern at Adet and planting common beans at maize emergence at Finoteselam resulted in maximum land use efficiency and profitability without compromising the main crop yield. Additionally, further research on the compatibility of different maize and common bean varieties in various spatial and temporal differentiations was recommended.
Article
Psychology, Multidisciplinary
Valentin Belentschikow, Kevin Pfeffel, Nicholas H. Mueller
Summary: This study examines the impact of group identification and common group membership on accepting friendship requests from unknown users on Facebook. The findings reveal that common ground, especially common group membership, is a central decision rule for users when accepting friendship requests.
COMPUTERS IN HUMAN BEHAVIOR
(2022)
Article
Plant Sciences
Luciany Favoreto, Mauricio Conrado Meyer, Angelica Calandrelli, Michele Corpolato Maia da Silva, Santino Aleandro da Silva, Andressa Cristina Zamboni Machado
Summary: Aphelenchoides besseyi, the causal agent of soybean green stem and foliar retention syndrome, has been reported parasitizing cotton in Brazil. In common bean, it causes symptoms like amachamiento and false angular spots, which are crucial for developing management strategies to prevent losses in bean crops in infested areas. This study provides the first report of the pathogenicity and symptoms caused by A. besseyi in common bean in Brazil.
Article
Food Science & Technology
Eduardo Castillo-Orozco, Oguier Garavitto, Omar Saavedra, David Mantilla
Summary: In this study, a computational and experimental analysis of mass and heat transfer in the drying process of the CCN51 cocoa bean variety was performed. The study used a multidomain CFD simulation coupled with a conjugate heat transfer and semiconjugate mass transfer model. The results showed that moisture diffusion was the dominant mechanism in the drying process, and a diffusion approximation model with given kinetic constants provided a good prediction of the drying behavior.
Article
Agronomy
Fernando de Souza Buzo, Lucas Martins Gare, Nayara Fernanda Siviero Garcia, Maura Santos Reis de Andrade da Silva, Pedro Henrique Giova da Silva, Pamela Roberta de Souza Morita, Juliana Barboza Correa, Juliana Trindade Martins, Everlon Cid Rigobelo, Amaia Nogales, Orivaldo Arf
Summary: Chemical seed treatment and mycorrhizal inoculation benefit bean plants and their nutritional status. The best combinations for the bean crop were metalaxyl + fludioxonil + tiabendazole with 41.4 mg of the inoculant per 100 seeds and pyraclostrobin + thiophanate methyl + fipronil with 62.1 mg of the inoculant per 100 seeds.
PEST MANAGEMENT SCIENCE
(2022)
Article
Plant Sciences
Amanda Lopes Ferreira, Josias Correa de Faria, Matheus da Costa Moura, Antonia Lopes de Mendonca Zaidem, Carolina Senhorinho Ramalho Pizetta, Elinea de Oliveira Freitas, Gesimaria Ribeiro Costa Coelho, Jose Francisco Arruda e Silva, Jose Alexandre Freitas Barrigossi, Lucia Vieira Hoffmann, Thiago Livio Pessoa Oliveira de Souza, Francisco Jose Lima Aragao, Patricia Valle Pinheiro
Summary: Common beans are staple food in Brazil. Virus diseases transmitted by whiteflies cause significant crop losses. This study developed genetically modified common bean lines with resistance to whiteflies, which resulted in high mortality rates for the insects. The transgenic plants did not affect non-target organisms. This research provides a foundation for the development of whitefly-tolerant common bean cultivars.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Juan Carlos Suarez, Jose Alexander Anzola, Amara Tatiana Contreras, Dina Luz Salas, Jose Ivan Vanegas, Milan O. Urban, Stephen E. Beebe, Idupulapati M. Rao
Summary: The study aims to evaluate the agronomic performance of different common bean lines intercropped with maize in the Colombian Amazon region and identify the best intercropping pattern to maximize productivity and land use. The results show that intercropping patterns can increase economic benefits and land use efficiency, especially under organic fertilizer application. This is of great significance for smallholders in the Amazon region.
Review
Plant Sciences
Amber Hageman, Elizabeth Van Volkenburgh
Summary: Drought significantly decreases yield in common beans, with wild ancestors' inheritance traits potentially leading to yield losses in some cultivated lines. However, certain bred lines are able to maintain higher yields under drought by maintaining sink strength. Resource availability and seed filling rates play crucial roles in this process.
Article
Plant Sciences
Reda Ibrahim Omara, Said Mohamed Kamel, Sherif Mohamed El-Ganainy, Ramadan Ahmed Arafa, Yasser Sabry Mostafa, Saad Abdulrahman Alamri, Sulaiman A. Alrumman, Mohamed Hashem, Mohsen Mohamed Elsharkawy
Summary: The study evaluated the mechanisms of rust resistance in 10 common bean genotypes. The resistant genotypes showed lower disease severity and higher activity of antioxidant enzymes. The resistance was mediated by defense gene expressions and the SA14 resistant gene.
Article
Agriculture, Multidisciplinary
Conny J. M. Almekinders, Esther Ronner, Joost van Heerwaarden
OUTLOOK ON AGRICULTURE
(2020)
Article
Agriculture, Multidisciplinary
Fleur B. M. Kilwinger, Pricilla Marimo, Anne M. Rietveld, Conny J. M. Almekinders, Ynte K. van Dam
OUTLOOK ON AGRICULTURE
(2020)
Article
Agriculture, Multidisciplinary
Margaret A. McEwan, Conny J. M. Almekinders, Jorge J. L. Andrade-Piedra, Erik Delaquis, Karen A. Garrett, Lava Kumar, Sarah Mayanja, Bonaventure A. Omondi, Srinivasulu Rajendran, Graham Thiele
Summary: Seed systems research is crucial for achieving the UN Sustainable Development Goals by improving varieties to end hunger, enhance nutrition, and increase livelihood security. However, without widespread adoption, the genetic gains from improved crop varieties cannot be fully realized.
OUTLOOK ON AGRICULTURE
(2021)
Review
Food Science & Technology
Thomas Pircher, Conny J. M. Almekinders
Summary: The demand-driven approach is crucial in improving agricultural research and development, but the specifics of studying demand are often overlooked. A systematic review on farmers' demand for seed systems reveals various approaches, such as surveys and interviews, to better understand and guide decision-making in agricultural practices.
Review
Agriculture, Multidisciplinary
E. Ronner, J. Sumberg, D. Glover, K. K. E. Descheemaeker, C. J. M. Almekinders, B. I. G. Haussmann, T. W. Kuyper, H. Posthumus, P. Ebanyat, K. E. Giller
Summary: Stimulating technological change to enhance agricultural productivity and reduce poverty involves offering potential users a 'basket of options' with various agricultural technologies to choose from. The dimensions of a basket, including its depth and breadth, should reflect the framing of the problem or opportunity at hand. The selection of specific options and potential adaptation provide important opportunities for learning.
OUTLOOK ON AGRICULTURE
(2021)
Article
Agriculture, Multidisciplinary
Esme Stuart, Asrat Asfaw, Patrick Adebola, Norbert Maroya, Alex Edemodu, Tunde Adeosun, Robert Asiedu, Conny Almekinders
Summary: Yam cultivation and the farmer-based seed system in Nigeria are characterized by high commercialization and high demand and turnover of seed yam. While some farmers specialize in seed yam production, the market is the major source for off-farm sourced seed yam.
OUTLOOK ON AGRICULTURE
(2021)
Article
Agriculture, Multidisciplinary
Conny J. M. Almekinders, Paul Hebinck, Wytze Marinus, Richard D. Kiaka, Wycliffe W. Waswa
Summary: This article reflects on the discussion of whether breeding and seed system development should focus on increasing agricultural productivity or consider the diversity of farmers' needs. Data from a survey in West Kenya show that farmers plant both local and hybrid maize varieties, with factors like cash availability, yield promise, projects, and seed culture influencing their choices. An inclusive demand-oriented approach should include a range of varieties and seed sources to fit farmers' diverse needs, and further research on farmers' rationales and crop varieties is needed for useful information for all stakeholders.
OUTLOOK ON AGRICULTURE
(2021)
Article
Agriculture, Multidisciplinary
Kai Mausch, Conny J. M. Almekinders, Caroline Hambloch, Margaret Anne McEwan
Summary: International agricultural research has shown that agricultural technologies can bring great benefits to societies in the Global South, but it is important to recognize the diversity in demand profiles of farming households to tailor seed delivery systems accordingly. This requires clear mandates, coordination, and multiple delivery models to reach a wider population of farming households and achieve the UN's Sustainable Development Goals.
OUTLOOK ON AGRICULTURE
(2021)
Article
Agriculture, Multidisciplinary
Fleur Kilwinger, Samuel Mugambi, Rhys Manners, Marc Schut, Silver Tumwegamire, Athanase Nduwumuremyi, Sylvie Bambara, Marthe Paauwe, Conny Almekinders
Summary: The study in Rwanda revealed that while more commercial oriented farmers have better access to formal seed sources, the majority of farmers across all typologies still obtain cassava seeds through informal channels. Tailoring cassava seed business models to account for differences among farmers is crucial for success, but careful coordination is needed to ensure that one approach does not conflict with others.
OUTLOOK ON AGRICULTURE
(2021)
Article
Agronomy
Thomas Pircher, Esme Rosa Stuart, Conny J. M. Almekinders, David Obisesan, Hemant Nitturkar, Godwin Asumugha, Emmanuel Azaino, Andrea Knierim
Summary: Based on the investigation and research on the cassava seed system and farmers' demand in Nigeria, this study found that the national agriculture development program alone cannot meet farmers' demand for desired seed varieties, and seed exchange between farmers and informal seed sellers plays an important role. The study also revealed variations in the presence of seed sellers and farmers' demand for cassava seed across different study sites, farmer types, and gender.
JOURNAL OF CROP IMPROVEMENT
(2022)
Article
Education & Educational Research
Nina de Roo, Tewodros Amede, Eyasu Elias, Conny Almekinders, Cees Leeuwis
Summary: In a highland community in Ethiopia, nodal farmers were found to play a more central role in the diffusion of malt barley technology than model farmers. Nodal farmers, who were more socio-economically similar to fellow farmers, had a significantly higher adoption index than the rest.
JOURNAL OF AGRICULTURAL EDUCATION & EXTENSION
(2021)
Article
Agronomy
E. O. Atieno, F. B. M. Kilwinger, C. J. M. Almekinders, P. C. Struik
Summary: This study aimed to understand how farmers choose seed potatoes by exploring the attributes they look for and the benefits they expect. The findings indicate that farmers consider 38 attributes when selecting seeds, including good sprouting, many eyes, familiar variety, medium size, certified, and undamaged. Increasing the availability of certified seed may not necessarily improve the quality of seed potatoes planted by Kenyan smallholder farmers.
Article
Agronomy
Kwame Ogero, Haile Selassie Okuku, Margaret McEwan, Conny Almekinders, Jan Kreuze, Paul Struik, Rene van der Vlugt
Summary: The use of insect-proof net tunnels can reduce virus infection in sweetpotato seed produced by decentralized seed producers. This study compared the effect of ratoon cropping technique on vine production in net tunnels and open fields for two varieties of virus-tested sweetpotato. The ratoon cropping technique produced more vines than the replanting technique, but also led to higher virus incidences in plants grown in the open fields, particularly for the Mataya variety. The study recommends using the ratoon cropping technique in net tunnels and the replanting technique in open fields to control virus infections.
EXPERIMENTAL AGRICULTURE
(2023)
Article
Agriculture, Multidisciplinary
Israel Navarrete, Conny J. M. Almekinders, Jorge L. L. Andrade-Piedra, Paul C. C. Struik
Summary: Purple top is a phytosanitary problem affecting potato farmers in Ecuador. This study reveals that managing the spread of emerging plant diseases and pests requires collaboration, coordination, communication, raising awareness, intervention design and implementation, funding, supporting regulations and policies, research, and surveillance. The spread of purple top in Ecuador and stakeholders' responses are influenced by the complexity of diagnosis and poor coordination, hindering the development of management strategies.
NJAS-IMPACT IN AGRICULTURAL AND LIFE SCIENCES
(2023)
Article
Development Studies
Yenenesh Tadesse, Conny J. M. Almekinders, Denis Griffin, Paul C. Struik
FORUM FOR DEVELOPMENT STUDIES
(2020)