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The Guangxi Subtropical Crops Research Institute (GSCRI) began their cassava varietal introduction and improvement program in 1981. Since 1985, GSCRI has introduced cassava hybrid seeds as well as promising clones by tissue culture from CIAT/Colombia, from the Thai CIAT program, as well as from o...


Tien, I-nungLee Jun[Cassava varietal improvement and dissemination in Guangxi]Cassava varietal improvement and dissemination in Guangxi

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

In Indonesia, cassava is used mostly for human consumption, while a smaller part is used for animal feed and as raw material in industry. This crop is cultivated in almost all provinces of Indonesia. However, because the amount of rainfall among the regions varies and is not evenly distributed, s...


Poespodarsono, Soemarjo[Recent progress in cassava varietal improvement in Indonesia]Recent progress in cassava varietal improvement in Indonesia

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

The traditional empirical approach to selection for yield in common bean has met with modest success. Breeding based on the concepts of ideotype, or for specific combinations of physiological traits, and/or for combining ability based on specific genotypic combinations, have not been universally ...


Kelly, James D.Kolkman, Judith M.Schneider, K.A.[Breeding for high yield in common bean]Breeding for high yield in common bean

Research and development of a reliable dry land production system for common bean (Phaseolus vulgarisL.) based on low-cost direct seeding and direct harvest methods was initiated at the Crop Development Centre at the University of Saskatchewan in the late 1980s. The target production area is a dr...


Vandenberg, A.Recksiedler, B.Zyla, L.[Development of new plant type for pinto beans: Progress, problem and future prospects]Development of new plant type for pinto beans: Progress, problem and future prospects

El Instituto Agronómico viene desarrollando investigaciones en el mejoramiento de frijol para el Estado de Sao Paulo y para el Brasil desde 1932, lanzado y recomendado para el cultivo, hasta hoy 27 variedades de frijol. En los últimos diez años fueron lanzadas seis nuevas variedades con resistenc...


Carbonell, Sérgio Augusto MoraisPompeu, Antonio SidneyIto, Margarida FumikoYuki, Valdir Atsushi[Mejoramiento de frijol realizado en el Instituto Agronómico - IAC, Sao Paulo, Brasil]Mejoramiento de frijol realizado en el Instituto Agronómico - IAC, Sao Paulo, Brasil

Los principales insectos fitófagos que merman la productividad del frijol en el altiplano mexicano son la conchuela (Epüachna varívestis Mulsant) y el picudo del ejote (Apion spp). El picudo del ejote, o de la vaina, se presenta en México, Guatemala, Honduras y El Salvador. En México se considera...


Garza García, Ramón[Avances en la búsqueda de mecanismos de resistencia a Apion godmani Wagner (Coleoptera: curculionidae)]Avances en la búsqueda de mecanismos de resistencia a Apion godmani Wagner (Coleoptera: curculionidae)

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

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