Influence of socio-economic and cultural factors in rice varietal diversity management on-farm in Nepal

Rana, R. B.; Garforth, Chris; Sthapit, B.R.; Jarvis, D. I.

doi:10.1007/s10460-007-9082-0

Cited by 80 publications

(82 citation statements)

References 21 publications

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“…Several previous case studies at the community level in Mexico (Perales et al, 2000;Perales et al, 2005;Latournerie-Moreno et al, 2006;Brush and Perales, 2007;Bellón and Hellin, 2011;Tuxill et al, 2010) and elsewhere (Brush, 2004;Guzman et al, 2005;Bisht et al, 2007;Rana et al, 2007;Jarvis et al, 2008;Bezançon et al, 2009;FAO, 2010;Jackson et al, 2010;Mulumba et al, 2012;Zimmerer, 2013) have demonstrated the persistence of landraces for climatic, ecological, cultural or social reasons. This trend is reaffirmed by the data from Mexico's national effort for maize diversity recollection (CONABIO, 2014).…”

Section: Longitudinal Analysis On Maize Varieties In Yucatan 57mentioning

confidence: 96%

Longitudinal analysis of maize diversity in Yucatan, Mexico: influence of agro-ecological factors on landraces conservation and modern variety introduction

Fenzi

Jarvis

Reyes

et al. 2015

Plant Genet. Resour.

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Transformations that farmers bring to their traditional farming systems and their impacts on the conservation and evolution of maize varieties over a 12-year period are investigated using a longitudinal analysis. Despite the increased introduction and supply of improved maize variety seeds in the Yucatan Peninsula, Mexico, over the last 12 years farmers continue to maintain a substantial amount of traditional maize variety diversity. Even with the increased availability of hybrid seeds, farmers in the community of Yaxcaba on average plant more than three quarters of their milpa fields to traditional maize varieties, with the latter one fourth predominately planted to a locally improved variety Nal Xoy, a farm cross of a traditional variety and an improved variety. We observed a significant reduction in yellow -x-Nuuk nal, a long-cycle traditional landrace, paralleled by an increase in short-and intermediate-cycle locally adapted improved maize varieties. We found great differences in the distribution of maize varieties by soil type, with modern varieties being targeted for the rarer, deeper and fine-grained soils, while traditional varieties predominate on the more prevalent stony and thin soils. Our results provide a picture in which most traditional maize varieties in Yaxcaba continue to be maintained by farmers, coexisting with locally adapted improved varieties on the same landscape, and allowing the continued evolution of maize populations.

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Section: Longitudinal Analysis On Maize Varieties In Yucatan 57mentioning

confidence: 96%

Longitudinal analysis of maize diversity in Yucatan, Mexico: influence of agro-ecological factors on landraces conservation and modern variety introduction

Fenzi

Jarvis

Reyes

et al. 2015

Plant Genet. Resour.

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“…(2006;Adnyana and Kariyasa, 2006;Mahananto et al, 2009;Malian et al, 2004) have all conducted research regarding Indonesia's various rice farming areas. Laborte et al (2015;Rana et al, 2007) and others have done research concerning rice farming outside of Indonesia. In our research we analyze the correlation between production factors, rice quality, rice price, production and farming income.…”

Section: Introductionmentioning

confidence: 99%

Identifying Factors Influencing Production and Rice Farming Income with Approach of Path Analysis

Alam¹,

Effendy²

2017

American Journal of Agricultural and Biological Sciences

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This research analyzes direct and indirect factors that potentially affected rice quality, rice price at the farmers' level, rice production and farming income. The target population in this research were farmers who farmed on rice land area ranging from 0.5 to 2.0 ha. A multistage, stratified cluster sampling was used in this research. This research employed a survey of 300 household heads, chosen randomly. Results showed that NPK fertilizers (Nitrogen, Phosphorus, Potassium), organic fertilizers and labor had a direct effect on rice production. Rice quality had a direct effect on its price at the farmers' level, while organic fertilizers and labor directly affected rice quality. Labor had a negative correlation to rice quality, showing that technologies were very much needed to improve. Rice price at the farmers' level and production had a direct effect on the income of rice farming, while the organic fertilizers had an indirect effect. These results have the potential to help the government and agricultural professionals design effective agricultural interventions to increase rice quality, price at the farmers' level and production so that farming income could increase.

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“…Thus, in order to improve Kersting's productivity and limit the extent of genetic loss, there is a need to undertake an extensive collection, characterization and evaluation of the available Kersting's groundnut germplasm. In so doing, varieties meeting both farmers and consumers' preferences or varieties with important traits to be exploited in breeding programs can be identified [67][68][69][70]. This will also be important to get useful information for the definition of core collection for conservation and materials sharing purposes among scientists.…”

Section: Threats and Conservation Statusmentioning

confidence: 99%

Potential of Kersting’s groundnut [Macrotyloma geocarpum (Harms) Maréchal & Baudet] and prospects for its promotion

Ayenan

Ezin

2016

Agric & Food Secur

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Kersting's groundnut is a tropical crop, highly nutritious, adapted to drought-prone areas. The crop is neglected both by researchers and by policy makers. This paper aimed at providing relevant information on the current status of the crop and the prospects to promote its improvement and production. To this end, available papers addressing any of the following aspect: distribution, nutritional value, cropping systems, post-harvest processing, usages, value chains, conservation status, genetic diversity and improvement of Kersting's groundnut were reviewed. In West Africa, the crop provides substantial income for rural population. Kersting's groundnut has several medicinal uses and cultural values as well. However, because of its intensive labor requirement, low yield and non-availability of improved varieties, its cultivation is declining and it is even disappearing gradually in some growing areas. The promotion of the crop's value chains is an option for reversing the declining trend in Kersting's groundnut cultivation. In recent years, some progress has been recorded in the collection, characterization and ex situ conservation of the crop. Thus, there are currently about 100 accessions conserved in various gene banks in Benin, Ghana, France and Belgium. This is still insufficient as compared to the genetic resources available in ex situ for most of the grown legume crops. To cope with this, extensive germplasm collection and their systematic characterization and evaluation coupled with new generation genomic tools need to be undertaken. For this purpose, genomic resources developed for Kersting's groundnut-related species will be valuable assets. The exploitation of genomic resources will enable the development of core and mini-core collections for conservation and breeding purposes. In addition, the use of genomic resources will speed up Kersting's groundnut breeding programs. Furthermore, the genetic base of the crop is extremely narrow and there is a need to broaden it for substantial genetic gain in breeding programs. For this purpose, mutation induction has been proposed as technique to increase variability in the Kersting's groundnut germplasm. Invest in Kersting's groundnut research is key to ensure the conservation and exploit the potential of the crop.

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Influence of socio-economic and cultural factors in rice varietal diversity management on-farm in Nepal

Cited by 80 publications

References 21 publications

Longitudinal analysis of maize diversity in Yucatan, Mexico: influence of agro-ecological factors on landraces conservation and modern variety introduction

Longitudinal analysis of maize diversity in Yucatan, Mexico: influence of agro-ecological factors on landraces conservation and modern variety introduction

Identifying Factors Influencing Production and Rice Farming Income with Approach of Path Analysis

Potential of Kersting’s groundnut [Macrotyloma geocarpum (Harms) Maréchal & Baudet] and prospects for its promotion

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