نتایج جستجو برای: Cassava stands

تعداد نتایج: 27515  

Journal: :international journal of agricultural science, research and technology in extension and education systems 2011
s. j. ibitoye

this study examined the influence of socioeconomic variables of farmers on their choice of cassava varieties in kogi state of nigeria. a total of 360 cassava farmers were selected through multi-stage random sampling procedure. data collected through structured questionnaire were analyzed using descriptive statistics, customer-buying behavioral model and dynamic programming model. the results sh...

Journal: :Nigerian journal of physiological sciences : official publication of the Physiological Society of Nigeria 2011
Micheal A Gbadegesin John R Beeching

Retrotransposons are ubiquitous in eukaryotic genomes and now proving to be useful genetic tools for genetic diversity and phylogenetic analyses, especially in plants. In order to assess the diversity of Ty1/Copia-like retrotransposons of cassava, we used PCR primers anchored on the conserved domains of reverse transcriptases (RTs) to amplify cassava Ty1/Copia-like RT. The PCR product was clon...

2011
George A. Dyer Carolina González Diana Carolina Lopera

Our ability to manage gene flow within traditional agroecosystems and their repercussions requires understanding the biology of crops, including farming practices' role in crop ecology. That these practices' effects on crop population genetics have not been quantified bespeaks lack of an appropriate analytical framework. We use a model that construes seed-management practices as part of a crop'...

S. J. Ibitoye

This study examined the influence of socioeconomic variables of farmers on their choice of cassava varieties in Kogi State of Nigeria. A total of 360 cassava farmers were selected through multi-stage random sampling procedure. Data collected through structured questionnaire were analyzed using descriptive statistics, customer-buying behavioral model and dynamic programming model. The results sh...

2016
Chockalingam Karthikeyan Basavaprabhu L. Patil Basanta K. Borah Thulasi R. Resmi Silvia Turco Mikhail M. Pooggin Thomas Hohn Karuppannan Veluthambi

The major threat for cassava cultivation on the Indian subcontinent is cassava mosaic disease (CMD) caused by cassava mosaic geminiviruses which are bipartite begomoviruses with DNA A and DNA B components. Indian cassava mosaic virus (ICMV) and Sri Lankan cassava mosaic virus (SLCMV) cause CMD in India. Two isolates of SLCMV infected the cassava cultivar Sengutchi in the fields near Malappuram ...

Journal: :international journal of agricultural science, research and technology in extension and education systems 2011
a, henri-ukoha j. s, orebiyi j. i, lemchi u. c, ibekwe s. u. o, onyeagocha

the study was designed to investigate the comparative analysis of agricultural credit users and non-users among cassava farmers in ohafia local government area of abia state. a sample of 50 credit users and 50 non-credit user cassava-based farmers were selected by multistage random sampling technique. data were collected with a well structured questionnaire administered to a total of 100 random...

Agwu A.E. Asadu A.N. Chah J.M. Enwelu I.A

  T he study examined factors influencing the adoption of improved cassava processing technologies. Interview schedule was used to collect information from 100 rural women involved in cassava processing. The average age of the respondents was 51 years and majority (77%) had formal education. The women’s main source of information on the improved cassava processing technologies was through the W...

This study was conducted in Abia state, Nigeria with specific objectives to: describe socio economic characteristics of ADP and non-ADP contact farmers; estimate profitability level of the two farmer groups; compare profitability of cassava production among the two farmer groups; determine factors that influence profitability of ADP and non-ADP contact cassava farmers and identify problems cons...

Journal: :international journal of environmental research 2009
n.o. boadi s.k. twumasi j.h. ephraim

cyanide (cn ) is a toxic species that is found predominantly in industrial effluents generated by metallurgical operations. cyanide’s strong affinity for metals makes it favorable as an agent for metal finishing and treatment and also as a lixiviate for metal leaching, particularly gold. these technologies are environmentally sound but require safeguards to prevent accidental spills from cont...

Journal: :Virology 2002
Keith Saunders Nazeera Salim Vasant R Mali Varagur G Malathi Rob Briddon Peter G Markham John Stanley

Two bipartite begomoviruses, Indian cassava mosaic virus (ICMV) and Sri Lankan cassava mosaic virus (SLCMV), have been isolated from mosaic-diseased cassava originating from central India and Sri Lanka, respectively. ICMV was transmitted with low efficiency from cassava to Nicotiana benthamiana by sap inoculation to give leaf curl symptoms. SLCMV was much more virulent in this host, producing s...

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