Yam-growing technique
Growing yam cuttings using rice husks. Photo by IITA
IITA and partners have developed a tuber-less yam propagation technique. In this innovative approach, yam is propagated through vine cuttings, using carbonized rice husks as the growth medium. The method significantly lowers the risk of nematode infestation from using tubers as planting material, promotes faster multiplication, better and more uniform crop quality, and makes more yam available for food or for sale.
In the traditional system, tubers used as seed take up 30–50% of the production cost. The system is also quite inefficient: the resulting multiplication rate is only about 1:5–10. In comparison, cereals, for instance, have a propagation ratio of about 1:300.
The technology offers a rapid, clean, and cost-effective mass method of multiplying yam. It could effectively address the need for fast and wide distribution of high-quality improved varieties to meet the increasing demand for the crop.
The research is funded by the Japanese government, the Sasakawa Africa Association, Tokyo University of Agriculture, and the International Cooperation Center for Agricultural Education, Nagoya University, Japan. Partners include the Tokyo University of Agriculture, National Root Crops Research Institute in Umudike, Nigeria, Crop Research Institute in Ghana, and the Institute of Agricultural Research for Development in Cameroon.
(3 votes, average: 2.33 out of 5)
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I’m a young man who has developed an interest in yam farming. I would be much grateful if you could assist me with modern techniques in planting to get a better yield.
I believe it is a nice idea.
I am a student at the University for Development Studies, located in Northern Ghana. I am doing the same project over here, so could you provide me with information about the project (propagating yam vines by using different rice husk medium). Thank You.
please i need detailed information on the procedures for producing yam minisett technology and seed yam multiplication
Nice technology. I will be interested in the detailed procedures.
Information and photos on mini-sett techniques for seed tuber production, including vine propagation, would be included in the IITA website soon. Please check the iita site at http://www.iita.org from time to time for updated information.
sexual propagation makes possible the production of the genetically variable populations required for breeding. Rapid vegetative propagation is essential for multiplying improved cultivars of yam (Dioscorea spp). Procedures for germinating seed and establishing seedlings and for rapid multiplication using rooted vine cuttings and tuber pieces are discussed. Author’s summary. KEYWORDS: TROPAG | Dioscorea | Root and tuber crops | yam | propagation
wonderful technology that can promote food securuty and available in Africa. please make this technology available for local farmers through extension agents, in order to achieve these.
I come from a place that consumes yams as staple food. the technology is great and will be of help to my people.
I am interested in the detailed procedures of the tuberless yam propagation.
I will be delighted to have a published copy of this work. Where can I find one?
Dear Sir,
This is an innovative idea. However, I wish you include yam scientists and researchers from neighbouring Universities to popularise the technology among the yam growers. I am a staff of LADOKE AKINTOLA UNIVERSITY OF TECHNOLOGY, OGBOMOSO. I had a similar collaboratory trials with Dr Asiedu and Mr Okonkwo last year using seed to produce yam seedlings, plantlets and seed yams. The results is fantastic. I wish to carry out further studies on tuberless yam through your institution. Kindly direct further.
Thanks
The technology will reduce cost incurred in procuring planting materials in yam. Kindly extend collaboratory research work to interested researchers. In my Institution, tuberless yam through the use of botanical seed of D. alata was produced last year. It was a fantastic experience.
Thanks
I am a farmer in Akuku Toru lga of the Rivers state,and i am elated with you innovative technique in mass producing yam.how do i get started ?
the new technology is fantastic and very superb.disseminating the technology to the appropriate farmers is what is needed now. if transfer of technology is embarked upon using pragmatic extension approach, it will definitely remove yam farmers from the poverty cycle and planting material challenge.
am suggesting preditential initiatives on yam just like cassava since yam has become an exportable commodity to Europe now.
kudos to iita.
I am starting an agricultural project in Cameroon and considering growing yam on a commercial scale. How Do I get started? Interested in detailed procedures of the tuberless yam propagation.
Sincerely.
Here comes the best technology for seed yam production. This is a welcome development especially as there will be a drastic reduction in the use of table yam as propagule.
I have tried this method in Kenya but the vine cuttings do not seem to sprout..what could be the problem? They are already 5 months old!!
Dear Zachary,
Thank you for your trials in Kenya.
Depending on the day-length and age of mother plants, the vine cutting will just form roots and microtubers.
Aged plants (those plants in the reproductive phase where rapid tuberization and flowering occur) will produce vine cuttings with only roots and tubers, while non-aged plants (plants in vegetative phase where elongating stems and leaves occur before rapid tuberizaion and flowering) under long day-length would produce vine cuttings with roots, shoots, and tubers.
Tuberization will be enhanced by short day-length while the growth of the top (stem and leaves) will be hampered by short day-length. Long day-length has the opposite effect. For this reason, the best season for vine propagation is under long day-length.
However, if you harvested small tubers from non-shooted vine cuttings, those small tubers will produce seed-tuber in the next cropping season. They can then be used for vine propagation again after the dormancy is broken.
Ideal planting materials and season for non-aged plants: 3 months after sprouting with new lateral branches and under long day-length, which promote shooting from vine cuttings.
Best regards,
Kikuno
This is an interesting technology that should be embraced by all and sundry for food sufficiency and export.It is imperative to observe the precautions associated with the technology for good result. I think we are getting there gradually! and this should interest government and donor agency in different countries to assist in continuous research on the subject, training programmes and dissemination of the new innovation to yam farmers for adoption.
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