scholarly journals Questioning Seeding Rates and its Influence on Phenotypic Expression of Wheat Populations for Participatory Plant Breeding—First Findings from Field Research across Organic Farms in Belgium and the Netherlands

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Sofia Baltazar ◽  
Raphaël Boutsen ◽  
Lieven Delanote ◽  
Vincent Delobel ◽  
Karel Dewaele ◽  
...  
Keyword(s):  
The Netherlands ◽  
Plant Breeding ◽  
Phenotypic Expression ◽  
Field Research ◽  
Participatory Plant Breeding ◽  
Organic Farms

scholarly journals Participatory Plant Breeding and the Evolution of Landraces: A Case Study in the Organic Farms of the Collserola Natural Park

Agronomy ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 486
Author(s):  
Casals ◽  
Rull ◽  
Segarra ◽  
Schober ◽  
Simó
Keyword(s):  
Plant Breeding ◽  
Agronomic Traits ◽  
Genetic Erosion ◽  
Soluble Solids ◽  
Phenotypic Traits ◽  
Participatory Plant Breeding ◽  
Phenotypic Variance ◽  
Organic Farms ◽  
Natural Genetic Variation ◽  
Natural Park

Although consumers appreciate the genetic diversity among tomato landraces, traditional varieties have been displaced from commercial agriculture. Their cultivation through organic farming in natural parks can contribute to their resurgence. With this aim, we developed a participatory plant breeding (PPB) program in Collserola Natural Park (Barcelona, Spain) to promote the conservation of the Mando landrace and to obtain new varieties adapted to local organic farms. Taking advantage of the natural genetic variation from the variety’s high cross-pollination rate, farmers developed five experimental inbreeds that were tested in a multi-locality trial in 2018. As a result of the PPB program, cultivation of the original landrace increased from 80 plants in 2011 to more than 2000 plants in 2018, which protected the variety from genetic erosion. Locality was the factor that contributed mostly to agronomic traits (e.g., yield (66% of the phenotypic variance)), while the genotype contributed more to the quality traits (except for soluble solids (37%) and dry matter (38%)). Farmer evaluations were highly correlated with the phenotypic traits recorded by researchers (Pearson coefficient ranging from 0.63–0.83), and led to the same final varietal selection. The superior inbred selected (3.9) is now being cultivated in the area of study. This paper discusses the efficiency of PPB in guiding the evolution of landraces.

Bottlenecks in the Implementation of On-Site Wastewater Treatment Plants on a Large Scale in The Netherlands

1990 ◽  
Vol 22 (3-4) ◽  
pp. 291-298
Author(s):  
Frits A. Fastenau ◽  
Jaap H. J. M. van der Graaf ◽  
Gerard Martijnse
Keyword(s):  
Wastewater Treatment ◽  
The Netherlands ◽  
Large Scale ◽  
Wastewater Treatment Plants ◽  
Housing Stock ◽  
Research Work ◽  
Field Research ◽  
Domestic Wastewater ◽  
Research Programme ◽  
Definition Of

More than 95 % of the total housing stock in the Netherlands is connected to central sewerage systems and in most cases the wastewater is treated biologically. As connection to central sewerage systems has reached its economic limits, interest in on-site treatment of the domestic wastewater of the remaining premises is increasing. A large scale research programme into on-site wastewater treatment up to population equivalents of 200 persons has therefore been initiated by the Dutch Ministry of Housing, Physical Planning and Environment. Intensive field-research work did establish that the technological features of most on-site biological treatment systems were satisfactory. A large scale implementation of these systems is however obstructed in different extents by problems of an organisational, financial and/or juridical nature and management difficulties. At present research is carried out to identify these bottlenecks and to analyse possible solutions. Some preliminary results are given which involve the following ‘bottlenecks':-legislation: absence of co-ordination and absence of a definition of ‘surface water';-absence of subsidies;-ownership: divisions in task-setting of Municipalities and Waterboards; divisions involved with cost-sharing;-inspection; operational control and maintenance; organisation of management;-discharge permits;-pollution levy;-sludge disposal. Final decisions and practical elaboration of policies towards on-site treatment will have to be formulated in a broad discussion with all the authorities and interest groups involved.

scholarly journals Alternative breeding processes: at which extent Participatory Breeding should modify the concept of ideotypes in plant breeding?

OCL ◽  
2018 ◽  
Vol 25 (6) ◽  
pp. D606 ◽  
Author(s):  
Patrick Vincourt ◽  
Pierre Carolo
Keyword(s):  
Plant Breeding ◽  
Agricultural Production ◽  
Developed Countries ◽  
Limiting Factors ◽  
Participatory Plant Breeding ◽  
Participatory Breeding ◽  
General Expectation ◽  
The Developed Countries ◽  
Definition Of ◽  
Alternative Organizations

The Participatory Plant Breeding (PPB) concept emerged twenty years ago, particularly with the aim to build alternative organizations of the plant breeding activities in developing countries. It now as well questions the developed countries, in the frame of a more global expectation to make all the stakeholders more involved in the agricultural production, from the farmers to its final clients. We discuss here some of the questions addressed by this trend with regard to the definition of the ideotype: (a) different forms of PPB? (b) changing the paradigm: Client Oriented Breeding? (c) a new way to manage {genotype * environment} interactions? (d) mainly societal concerns at stake? (e) biodiversity and ideotypes. As the same key, technical, limiting factors are involved in both PPB and classical breeding, it is suggested to consider PPB as one of the ways in the frame of a general expectation for diversification, thus eventually resulting in the promotion of alternative ideotypes, rather than an alternative process.

Participatory plant breeding

2019 ◽  
pp. 161-177
Author(s):  
Rene Salazar ◽  
Gigi Manicad ◽  
Anita Dohar ◽  
Bert Visser
Keyword(s):  
Plant Breeding ◽  
Participatory Plant Breeding

Ethical dilemmas and challenges in ethnographic migration research

2020 ◽  
Vol 20 (3) ◽  
pp. 281-291
Author(s):  
Martha Montero-Sieburth
Keyword(s):  
The Netherlands ◽  
Case Studies ◽  
Ethical Dilemmas ◽  
Field Research ◽  
Ethnographic Research ◽  
Ethical Challenges ◽  
Bottom Up ◽  
Content Type ◽  
Migration Research ◽  
The Us

PurposeArgued is the need for: (1) a clearer interpretation of procedural ethics guidelines; (2) the identification and development of ethical field case study models which can be incorporated into university ethics teaching; (3) an understanding of the vulnerabilities of researchers and participants as reflected in the researchers' positionality and reflexivity and (4) ethnographic monitoring as a participant-friendly and participatory ethics methodology.Design/methodology/approachThis article, drawn from the author's four-decade trajectory of collective ethnographic research, addresses the ethical challenges and dilemmas encountered by researchers when conducting ethnographic research, particularly with vulnerable migrant women and youth.FindingsThe author addresses dilemmas in field research resulting from different interpretations of ethics and emphasizes the need for researchers to be critically aware of their own vulnerabilities and those of migrants to avoid unethical practices in validating the context(s), language(s), culture and political landscape of their study.Research limitations/implicationsThe author presents case studies from the US and the Netherlands, underlining her positionality and reflexivity and revisits Dell Hymes' ethnographic monitoring approach as a participant-friendly, bottom-up methodology which enables researchers to co-construct knowledge with participants and leads to participatory ethics.Practical implicationsShe presents case studies from the US and the Netherlands underlining her positionality and reflexivity and revisits Dell Hymes’ ethnographic monitoring approach as a participant-friendly, bottom up methodology which enables researchers to co-construct knowledge with participants and engage in participatory ethics.Social implicationsFinally, she proposes guidelines for the ethical conduct of research with migrant populations that contribute to the broader methodological debates currently taking place in qualitative migration research.Originality/valueExpected from this reading is the legacy that as a qualitative migration researcher one can after 4 decades of research leave behind as caveats and considerations in working with vulnerable migrants and the ethical dilemmas and challenges that need to be overcome.

Participatory Plant Breeding with Traders and Farmers for White Pea Bean in Ethiopia

2013 ◽  
Vol 20 (5) ◽  
pp. 497-512 ◽  
Author(s):  
T. Assefa ◽  
L. Sperling ◽  
B. Dagne ◽  
W. Argaw ◽  
D. Tessema ◽  
...  
Keyword(s):  
Plant Breeding ◽  
Participatory Plant Breeding
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