Adoption of yam minisett technology by women farmers in Abia State, Nigeria

Ironkwe, AG; Asiedu, Robert; Unamma, Rpa

doi:10.4314/jasr.v7i2.2863

Cited by 8 publications

(8 citation statements)

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“…A large number of adoption studies have established significant relationships among farmers' socioeconomic characteristics and the overall adoption of the YMT (Ajieh, 2012;Ayoola, 2012;Ironkwe and Asiedu, 2008;Madukwe, 1995). These socio-economic attributes refer to the personal predisposing factors of the farmer who makes decisions on adoption or rejection (Tey and Brindal, 2012).…”

Section: Factors Influencing the Adoption Of Ymtmentioning

confidence: 99%

“…The low level of awareness of the technique among women farmers in Abia state supports this ( Table 2). The majority of Nigerian yam farmers are in their agriculturally active years because of the labour demand of yam production (Ibok et al 2015;Waziri et al 2014;Ajieh, 2012;Ayoola 2012;Ironkwe and Asiedu, 2008;Madukwe, 1995). Young farmers are more knowledgeable in new practices and are more willing to bear risks in agricultural packages (Clark and Akinbode, 1998).…”

Section: Informational Factorsmentioning

confidence: 99%

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Factors limiting the yam minisett technique adoption: A review

Ilesanmi

Akinmusola

2016

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The yam minisett technique was developed to overcome the scarcity of seed yams, and has been introduced to farmers more than any other scientifically improved yam propagation method. However, the adoption rate of this technique has not significantly improved over the years. This paper presents an overview of the factors contributing to the low adoption rate of the technique since its deployment in Nigeria. Three main classes of factors influencing the adoption of the yam minisett technology are presented; informational factors, technical factors and economic factors. Among the informational factors, low rate of extension contact coupled with low membership of social groups has negative impacts on the level of awareness of the technology. Issues relating to technical and economic limitations are the major challenges faced by the minisett technique adopters. Among these, the low survival and sprouting rate of minisetts, high labour costs and low level of capital are of utmost importance.

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Section: Factors Influencing the Adoption Of Ymtmentioning

confidence: 99%

Section: Informational Factorsmentioning

confidence: 99%

Factors limiting the yam minisett technique adoption: A review

Ilesanmi

Akinmusola

2016

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“…The availability and cost of yam seeds have thus been identified as a major limiting factor for the expansion of yam cultivation. Indeed, yam seeds are not only expensive, but also scarce [17]. They represent 40% to 60% of the total variable cost of yam production and are also bulky [18] [19] [20].…”

Section: Introductionmentioning

confidence: 99%

Effect of Plant Growth Hormones and Liquid Fertilizer on Rooting and Tuberization of Yam (<i>Dioscorea rotundata</i> Poir.) Vine Cuttings

Brice¹,

Michel²,

Elisée³

et al. 2019

AJPS

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Vine cutting is an effective solution to solve the problem of seed availability in yam cultivation. This study was conducted to improve the recovery and rooting rate of vine cuttings of Dioscorea rotundata. Two-node cuttings from five (5)-month-old hybrid plants were grown in liquid media consisting of phytohormones (AIA 3 and GA 3) and liquid fertilizer (NPK 8-8-8) at different concentrations. Observations were made weekly from the 21st day after transplanting and focused on the survival rate of the cuttings, the number of roots emitted and the number of minitubers initiated. The results obtained showed a significant effect of the different growing media on the survival rate, rooting and production of minitubers. The best survival rates were obtained for cuttings grown in NPK (8-8-8) at 0.25% (100%) and AIA 3 at 25 ppm (93.3%). The highest averages root number was recorded with growing media containing 0.25% NPK 8-8-8 (20.3) and 25 ppm AIA 3 (17.7). Growing media with 0.25% NPK (8-8-8) and 25 ppm AIA 3 provided the highest average numbers of minitubers initiated, respectively 5 and 4.6. Growing medium containing 0.25% NPK 8-8-8 has been identified as the one that allows better roots emission and minitubers production by yam vines cuttings.

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“…Therefore, there is scarcity of virus-free seed yam. Up to 63% of the cost of production is spent on the purchase of seed (Ironkwe et al 2007). This makes it necessary to improve the existing informal seed production and development of a formal yam seed system where regulatory rules are functional ).…”

mentioning

confidence: 99%

Relative efficiency of positive selection and tissue culture for generating pathogen-free planting materials of yam (Dioscorea spp.)

Balogun¹,

Maroya²,

Augusto³

et al. 2017

Czech J. Genet. Plant Breed.

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Balogun M., Maroya N., Augusto J., Ajayi A., Kumar L., Aighewi B., Asiedu R. (2017): Relative efficiency of positive selection and tissue culture for generating pathogen-free planting materials of yam (Dioscorea spp.). Czech J. Genet. Plant Breed., 53: 9-16.Yams are staples in West Africa. They are propagated from tubers in an informal seed system. This encourages a build-up of diseases, and necessitates the rapid development of a formal seed system where certified seeds are functional. Although few reports exist on the use of meristem culture to generate pathogen-free yam, the success rate for the most economically important species in the sub-region, Dioscorea rotundata, for the most prevalent viruses is inadequate. To generate pathogen-free yam planting materials, the relative efficiency of tissue culture and positive selection was compared. Twenty-one asymptomatic yam plants were positively selected from 8187 stands of five landraces. Five of these stands were tested virus-negative by multiplex polymerase chain reaction (PCR) for Yam mosaic virus (YMV), Yam mild mosaic virus (YMMV) and Cucumber mosaic virus (CMV), and by PCR for the genus Badnavirus (BV), giving 0.08% success. Single nodes of the positively selected stands were used to establish in vitro plantlets, which were screened onto bacteriological indexing medium. The same was done for meristem-and node-derived plantlets of the improved variety TDr 95/19158. Incidence of endophytes ranged from 18 to 32% in the nodal plantlets while it was 0% in the meristem-derived plantlets. The effect of meristem culture combined with thermotherapy on the virus infection status was determined using virus-tested, one week old in vitro plantlets of eight improved genotypes. These in vitro plantlets were incubated at 36 ± 0.5°C and 16 h photoperiod for 21 days, after which meristems were excised, regenerated into plantlets and re-tested for viruses. Seventy-three percent of the samples were recovered from YMV but the effect on BV was inconsistent. Positive selection can be used as a palliative in generating quality declared seed but meristem culture combined with thermotherapy is more efficient for generating certified seed tubers of yam.

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Adoption of yam minisett technology by women farmers in Abia State, Nigeria

Cited by 8 publications

References 0 publications

Factors limiting the yam minisett technique adoption: A review

Factors limiting the yam minisett technique adoption: A review

Effect of Plant Growth Hormones and Liquid Fertilizer on Rooting and Tuberization of Yam (<i>Dioscorea rotundata</i> Poir.) Vine Cuttings

Relative efficiency of positive selection and tissue culture for generating pathogen-free planting materials of yam (Dioscorea spp.)

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Adoption of yam minisett technology by women farmers in Abia State, Nigeria

Cited by 8 publications

References 0 publications

Factors limiting the yam minisett technique adoption: A review

Factors limiting the yam minisett technique adoption: A review

Effect of Plant Growth Hormones and Liquid Fertilizer on Rooting and Tuberization of Yam (&lt;i&gt;Dioscorea rotundata&lt;/i&gt; Poir.) Vine Cuttings

Relative efficiency of positive selection and tissue culture for generating pathogen-free planting materials of yam (Dioscorea spp.)

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Effect of Plant Growth Hormones and Liquid Fertilizer on Rooting and Tuberization of Yam (<i>Dioscorea rotundata</i> Poir.) Vine Cuttings