A study on financial opportunity costs of growing local varieties of sorghum in Ethiopia: Implications for on-farm conservation policy

2008 ◽  
Vol 64 (3) ◽  
pp. 603-610 ◽  
Author(s):  
Edilegnaw Wale
Keyword(s):  
Conservation Policy ◽  
Opportunity Costs ◽  
Local Varieties ◽  
On Farm Conservation ◽  
On Farm

Efficiency of three PCR-based markers in assessing genetic variation among cowpea (Vigna unguiculata subsp. unguiculata) landraces

Genome ◽  
2002 ◽  
Vol 45 (2) ◽  
pp. 268-275 ◽  
Author(s):  
Nicola Tosti ◽  
Valeria Negri
Keyword(s):  
Vigna Unguiculata ◽  
Diversity Index ◽  
Local Varieties ◽  
Restricted Area ◽  
Marker Index ◽  
Marker System ◽  
On Farm Conservation ◽  
Genetic Pool ◽  
Effective Multiplex Ratio ◽  
On Farm

The main objective of this study was to investigate the efficiency of RAPD, AFLP, and SAMPL marker systems in detecting genetic polymorphism in cowpea landraces (Vigna unguiculata subsp. unguiculata (L.) Walp.) that probably share a similar genetic pool. A second objective was to determine the level of diversity among landraces from a restricted area, to define the most appropriate strategy of on-farm conservation. Each marker system was able to discriminate among the materials analysed, but a clear distinction between all the local varieties was only obtained with AFLP and SAMPL markers. The average diversity index was quite similar for each marker system, but owing to the differences in the effective multiplex ratio values the marker index was higher for the AFLP and SAMPL systems than for the RAPD system. The AFLP and SAMPL techniques appear to be more useful than the RAPD technique in the analysis of limited genetic diversity among the cowpea landraces tested. The significant correlations of SAMPL similarity and cophenetic matrices with those of the other markers, and the lower number of primer combinations required, indicate that this technique is the most valuable. The low genetic similarity detected among landraces suggests that all the cowpea landraces should be maintained on the respective farms from which they came.Key words: landraces, molecular marker, marker index, Vigna.

scholarly journals AGRO-BIODIVERSITY CONSERVATION THROUGH SEED BANKING: A CASE STUDY FROM MID-WESTERN AND FAR-WESTERN NEPAL

2014 ◽  
Vol 19 ◽  
pp. 39-47 ◽  
Author(s):  
Chandra P. Pokhrel ◽  
Vimla Bhandari ◽  
Pramesh Lakhe ◽  
Ram Kailash P. Yadav
Keyword(s):  
Seed Storage ◽  
Growth Period ◽  
Yield Potential ◽  
Seed Selection ◽  
Potential Growth ◽  
Local Varieties ◽  
On Farm Conservation ◽  
Seed Supply ◽  
Processing And Storage ◽  
On Farm

The present paper deals with the perception and practices of farmers on production, processing and storage of seeds as well as role of Community Seed Banks (CSBs) in seed supply and conservation of agro-biodiversity. The study was conducted in three VDCs namely Belwa, Masuriya and Beldandi of Bardia, Kailai and Kanchanpur districts, respectively. Of the sampled respondents, 44.4% used only local varieties and the rest of them used all local, improved and hybrid varieties. Farmers in the study area have their own criteria of seed selection such as yield potential, growth period, resistance to disease and pest, taste, shape and color. Traditionally, farmers store their seeds in a special clay pot called “Dehari” and “Kuthali: CSB is the alternative way of their seed storage. Total 75 varieties of paddy, 13 varieties of wheat and 10 varieties of maize were stored in CSBs. Eight varieties of millet, 5 varities of mustard and 12 varieties of pulse, 4 varieties of gram and two varieties of soybean were also stored. CSBs were found to be useful to the farmers in many ways such as easy availability of seeds, on-farm conservation of local varieties, conservation of local and traditional knowledge and change in their livelihoods. DOI: http://dx.doi.org/10.3126/eco.v19i0.9852  EcoprintAn International Journal of EcologyVol. 19, 2012Page: 1-5Uploaded date: 2/14/2014 

On‐farm conservation priorities through a multicriteria mono‐specific approach

Crop Science ◽  
2021 ◽  
Author(s):  
Rosa María García ◽  
Mauricio Parra‐Quijano ◽  
Jesús Martínez‐Fernández ◽  
José María Iriondo
Keyword(s):  
Conservation Priorities ◽  
Specific Approach ◽  
On Farm Conservation ◽  
On Farm

On farm conservation of fruit genetic resources

2021 ◽  
pp. 127-130
Author(s):  
F. Paprstein ◽  
J. Sedlak ◽  
P. Brandova
Keyword(s):  
Genetic Resources ◽  
On Farm Conservation ◽  
Fruit Genetic Resources ◽  
On Farm

On the ecological recognition of Butia palm groves as integral ecosystems: Why do we need to widen the legal protection and the in situ/on-farm conservation approaches?

2019 ◽  
Vol 81 ◽  
pp. 124-130 ◽  
Author(s):  
Ênio Egon Sosinski ◽  
Leonardo Marques Urruth ◽  
Rosa Lía Barbieri ◽  
Marene Machado Marchi ◽  
Silvano Gildo Martens
Keyword(s):  
Legal Protection ◽  
On Farm Conservation ◽  
On Farm

scholarly journals The current status and perspectives of on farm conservation of crop genetic diversity

2002 ◽  
Vol 10 (4) ◽  
pp. 409-415
Author(s):  
ZHU YouYong ◽  
Bao-Rong Lu ◽  
WANG YunYue ◽  
◽  
Keyword(s):  
Genetic Diversity ◽  
Current Status ◽  
On Farm Conservation ◽  
Crop Genetic Diversity ◽  
On Farm
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