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Cryopreservation in liquid nitrogen of isolated zygotic embryos and whole seeds of cassava have been studied. A simple method is proposed for utilization in germplasm conservation or other related uses. Very high percentage survival values (ca. 97 percent) of zygotic embryos and whole seeds were ...


Marin, M.L.Mafla, G.Roca, William M.Withers, Lyndsey A.[Cryopreservation of cassava zygotic embryos and whole seeds in liquid nitrogen]Cryopreservation of cassava zygotic embryos and whole seeds in liquid nitrogen

The effects of cutting storage on cassava root and branch production as well as on other crop characteristics (wt. loss, percentage of viable cuttings, sprouting 80 days after planting, final stand, no. of seed- cuttings/plant) were studied under field conditions in the banana growing zone of San...


Luna R., J.M.Correa, H.Leihner, D.E.[Influencia do armazenamento de manivas de mandioca (Manihot esculenta Crantz) na producao de raizes e ramas]Influencia do armazenamento de manivas de mandioca (Manihot esculenta Crantz) na producao de raizes e ramas

This study used discrete and count data regression models and data collected from 732 farm households in Tanzania to test the effect of participation on a project designed to break this quality “seed” bottleneck (via technology awareness and targeted access to clean planting materials) on: i) the...


Okello, A.Sindi, K.Shikuku, K.M.Low, J.W.McEwan, M.Nakazi, F.Namanda, S.Babu, A.Mafuru, J.[Effect of technology awareness and access on the conservation of clean planting materials of vegetatively produced crops: The case of sweetpotato.]Effect of technology awareness and access on the conservation of clean planting materials of vegetatively produced crops: The case of sweetpotato.

The storage roots of cassava (Manihot esculenta Crantz) suffer from a rapid post-harvest deterioration that is a major constraint to their increased exploitation. In many ways this deterioration resembles wound responses in other better studied plant systems, though it appears to lack an adequate...


Han, YGómez Vásquez, RReilly, KLi, HTohme, Joseph M.Cooper, R.M.Beeching, JR[Hydroxyproline-rich glycoproteins expressed during stress response in cassava]Hydroxyproline-rich glycoproteins expressed during stress response in cassava
Maxted, NigelKell, S.Toledo, A.Dulloo, M.E.Heywood, V.Hodgkin, T.Hunter, DGuarino, LuigiJarvis, AndyFord-Lloyd, B.V.[A global approach to crop wild relative conservation: securing the gene pool for food and agriculture]A global approach to crop wild relative conservation: securing the gene pool for food and agriculture

The unavailability of good quality seed yams (Dioscorea rotundata Poir) is frequently cited to be responsible for the slow rate of growth or decline in yam production. Current production and storage practices, as well as quality of seed yams in 35 villages of Oyo North, Asaba, Lokoja, and Lafia a...


Asiedu, RobertAkoroda, M.O.Aighewi, B.A.[Seed yam (Dioscorea rotundata Poir) production, storage, and quality in selected yam zones of Nigeria]Seed yam (Dioscorea rotundata Poir) production, storage, and quality in selected yam zones of Nigeria
Laberry Saavedra, Rafael AlbertoLozano T., José Carlos[Almacenamiento de estacs de yuca (Manihot esculenta Crantz) [resumen]]Almacenamiento de estacs de yuca (Manihot esculenta Crantz) [resumen]

A survey was conducted in the different areas in Bénin where yam (Dioscorea spp) are grown. Yam tubers were assessed visually for dry rot disease associated with the yam nematode, Scutellonema bradys. Assessments were made during February and March in 2002 and 2003 on yam for sale on...


Baimey, H.Coyne, D.L.Labuschagne, N.[Survey of Scutellonema bradys incidence on marketed yam (Dioscorea spp.) in Benin]Survey of Scutellonema bradys incidence on marketed yam (Dioscorea spp.) in Benin
Castaño Zapata, JairoLozano T., José CarlosCock, James H.[Un sistema nuevo de almacenamiento de raíces de yuca (Manihot esculenta Crantz) [resumen]]Un sistema nuevo de almacenamiento de raíces de yuca (Manihot esculenta Crantz) [resumen]
Haan, Stef deRodríguez, F.Becerra, L.A.Polreich, S.Scurrah, M.Nunez, J.Juarez, H.Plasencia, F.Bernardo, L.Meza, K.[Conservation dynamics of roots and tuber crops under on-farm management.]Conservation dynamics of roots and tuber crops under on-farm management.

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