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During the past 16 years the Chinese Academy of Tropical and Agricultural Sciences (CATAS) has made good progress in developing improved cassava varieties for China. Several improved varieties have been released in south China, of which cv. SC124, with high yield and good cold resistance, is alre...


Lin, XiongLi, KaimianZhang, WeiteJuang, Jie[Progress in cassava breeding at the Chinese Academy of Tropical and Agric. Sciences (CATAS)]Progress in cassava breeding at the Chinese Academy of Tropical and Agric. Sciences (CATAS)

An analysis of the recent trend in cassava area, production and yield during 1993-96 revealed an impressive increase in Tamil Nadu, which is the predominant state where cassava is grown as an industrial crop. Its present yield of 29 t/ha is the highest in the world. Even though the overall nation...


Nair, S.G.Rajendran, P.G.Naskar, S.K.Sreekumari, M.T.Unnikrishnan, M.Sheela, M.N.[Breeding and varietal improvement of cassava in India]Breeding and varietal improvement of cassava in India

This paper describes the agricultural situation in Maramche. Village learners have been participating with Ihe Local initiatives for Biodiversity Research and Development (LI-SIRD), testing improved varieties of paddy rice. Details of the qualities of the new varieties. Qualities preferred by Ihe...


Poudel, Chandra KantaDil Bahadur, K.C.Poudel, Sita[Role of farmers in the improvement of crops: New species of paddy in Maramche]Role of farmers in the improvement of crops: New species of paddy in Maramche

Farmers from the village of Chhomrong in Nepal describe their experiences with experimental varieties of paddy rice, growing experimental varieties and selecting for specific qualities, in an initiative that started in 1993.


Gurung, Om BahadurGurung, NajarmanGurung, Min KumariGurung, Nauli[How did the farmers of chhomrong improve the local paddy species?]How did the farmers of chhomrong improve the local paddy species?

El frijol común (Phaseolus vulgaris L.) es una planta anual, herbeces, con 22% de proteína en sus semillas, que consumidas secas o inmaduras son parte importante en la dieta diaria de muchos pueblos del mundo. El frijol se siembra actualmente en Centroamérica y el Caribe en áreas marginales o en ...


Faure Alvarez, BenitoCarballo, R.M.[Mejoramiento del frijol común para tolerancia a altas temperaturas]Mejoramiento del frijol común para tolerancia a altas temperaturas

En el noroeste argentino (NOA) se registró, a partir de 1976, una expansión del área cultivada de poroto negro (Phaseolus vulgaris L). Entre Los diversos problemas de producción de poroto en Argentina, están las enfermedades virales como el mosaico dorado (VMD) y el mosaico enano, principales lim...


Vizgarra, Oscar Nicéforo[TUC 390 y TUC 500, dos nuevas variedades de poroto negro para el noroeste argentino]TUC 390 y TUC 500, dos nuevas variedades de poroto negro para el noroeste argentino
Autor: Mott, G.O.

Three steps in forage germplasm evaluation, leading to the identification of superior cultivars, are discussed. Emphasis is given to the use of the grazing animal to defoliate the collection of accessions, beginning in the introduction nursery to provide preliminary information on acceptability a...


Mott, G.O.[Evaluation pasture germplasm under different grazing management systems]Evaluation pasture germplasm under different grazing management systems
Autor: Grof, Bert

Grassland improvement work, particularly in the early stages of developing a program for tropical regions, involves a comparison of new accessions selected from wild populations whose potential as cultivated forages is often unknown. Pasture species evaluation strategies employed at CIAT's main s...


Grof, Bert[Selection of pasture cultivars from many germplasm entries under grazing]Selection of pasture cultivars from many germplasm entries under grazing

Nicholaides, John J.Piha, M.I.[Una nueva metodología para seleccionar cultivares tolerantes al aluminio y con alto potencial de rendimiento]Una nueva metodología para seleccionar cultivares tolerantes al aluminio y con alto potencial de rendimiento

Cassava (Manihot esculenta Crantz) has been grown in India for more than a century. Although cassava breeding was initiated during the 1940s in Kerala, intensive research on breeding of superior varieties began only after the establishment of the Central Tuber Crops Research Institute (CTCRI) in ...


Abraham, K.Nair, S.G.Naskar, S.K.[Cassava breeding and varietal dissemination in India: Major achievements during the past 25-30 years]Cassava breeding and varietal dissemination in India: Major achievements during the past 25-30 years

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