Labour is one of the factors of production. And it is expected that with increase in adoption, the farmer’s output would increase and, consequently, there would be increases in the quantities of production inputs, and labour is one of such inputs. This study was, therefore, conducted to find out the effect of adoption on labour used for yam production by resource-poor farmers in Cross River Sta...

Twenty-five villages of Northern Benin were surveyed to identify the constraints of yam chips production, assess the diversity of storage insects on yam chips, and document farmers' perception of their impacts on the stocks and their traditional management practices. Damages due to storage insects (63.9% of responses) and insufficiency of insect-resistant varieties (16.7% of responses) were the...

The main objective of the paper was to examine the costs, returns and efficiency levels obtained by key players in the Ghanaian yam marketing chain. A total of 320 players/actors (farmers, wholesalers, retailers and cross-border traders) in the Ghanaian yam industry were selected from four districts (Techiman, Atebubu, Ejura-Sekyedumasi and Nkwanta) through a multi-stage sampling approach for t...

Yams (Dioscorea spp.) consist of approximately 600 species. Presently, these species are threatened by genetic erosion due to many factors such as pest attacks and farming practices. In parallel, complex taxonomic boundaries in this genus makes it more challenging to properly address the genetic diversity of yam and manage its germplasm. As a first step toward evaluating and preserving the gene...

Article history: Received: 14 February 2016 Accepted in revised form: 20 March 2016 ABSTRACT In recent years, Dioscorea opposita shares a bigger market as people pay more and more attention to health. Dioscorea opposita Thunb. cv. Tiegun is deeply favored by people as it has high edible value, medicinal value and nutritional value. Relatively concentrated harvest season of Dioscorea opposita Th...

Yam is an important food and cash crop in Nigeria. The seed system mostly farmer-based its challenges opportunities are not well documented. This study reports results of surveys, interviews, focus group discussions participant observations that describe local practices characterizing yam cultivation the five states Our findings show ware dynamic highly commercialized goods There a high demand ...

Grown in Jamaica since the days of slavery, food yams are major staples in local diets and a significant non-traditional export crop. The cultivation system used today is the same as 300 years ago, with alleged unsustainable practices. A new cultivation system called minisett was introduced in 1985 but the adoption rate twenty four years later is extremely low. This paper analyzes the prospects...

The YAM-BIO ontology alignment system is an extension of YAM++ but dedicated to aligning biomedical ontologies. YAM++ has successfully participated in several editions of the Ontology Alignment Evaluation Initiative (OAEI) between 2011 and 2013, but this is the first participation of YAM-BIO. The biomedical extension includes a new component that uses existing mappings between multiple biomedic...

Widely spread in the tropics, yams were introduced into Brazil during the colonial period and are currently grown throughout the country. Despite its importance as a pharmacological and food source, there is a lack of studies describing how and where this tuber is grown in Brazil. The aim of this study was to provide an overview of the cultivation and distribution of Dioscorea alata in differen...

The persistent low yield and farmers’ preference of their traditional yam varieties over the improved necessitated this study to verify adoption status released in Nigeria. A total 48 accessions white (Dioscorea rotundata) were sampled from six states Ebonyi, Enugu, Benue, Kogi, Nassarawa Oyo within Nigeria yam-belt genotyped for relatedness four National Root Crops Research Institute (NR...