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Sorghum is the third most important cereal crop in India and, over both the rainy (kharif) and the Post-rainy (rabi) seasons, totals a combined area of more than 11 million ha. Rabí sorghum is important for both food and fodder in the drought-prone areas of the states of Maharashtra (3.3 million ...


Rana, B.S.Kaul, S.L.Appaji, ChariParbhakarKalyanshetty, N.S.Reddy, B.V.S.Witcombe, John R.Virk, Daljit S.[Participatory varietal selection in rabi sorghum in India]Participatory varietal selection in rabi sorghum in India

Finger millet (Eleusine coracana L. Gaertn.) is an important small millet for rainfed areas in India. A dozen varieties have been released for cultivation but there is little adoption by farmers, particularly in the Chitradurga and Bellary districts of Karnataka state where the present study was ...


Halaswamy, B.H.Gowda, B.T.S.Seetharam, A.Virk, Daljit S.Witcombe, John R.[Participatory varietal selection in finger millet]Participatory varietal selection in finger millet

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 May 1980 the soil section of CIAT's cassava program established a fertilization trial with 3 cassava var. [Barranquena (regional), M Col 113, and CMC 921 to measure its effect on yield and establish optimum levels from an economical point of view. The trial took place in Mondomito and Agua Bla...

En mayo de 1980 en la seccion de suelos del programa de yuca del CIAT se establecio un ensayo de fertilizacion con 3 var. de yuca (Barranquena (regional), M Col 113 y CMC 92) para medir su efecto en el rendimiento y establecer los niveles optimos desde el punto de vista economico. El ensayo se lo...


Díaz, R.O.Howeler, Reinhardt H.Cadavid, L.F.[Anilisis economico de un ensayo de fertilizacion en yuca]Anilisis economico de un ensayo de fertilizacion en yuca

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?

Bean rust (Uromyces phaseoli), a common disease with worldwide distribution, is considered one of the most important bean production problems in the tropics. Prolonged periods of moisture and moderate temp. (17-27 degrees C) favor disease development. The infection process begins when a urediospo...

La roya del frijol (Uromyces phaseoli) es una enfermedad a nivel mundial considerada como uno de los problemas mas importantes de la produccion de frijol en el tropico. Periodos prolongados de humedad y temp. moderadas (17-27 grados C) favorecen el desarrollo de la enfermedad. El proceso de infec...


Stavely, J.R.Pastor Corrales, Marcial A.[Rust]Rust

White mold, caused by the fungus Sclerotinia (Whetzelinia) sclerotiorum, is distributed worldwide and has more than 300 hosts. It infects flowers, cotyledons, seeds, leaves, or injured plant tissue. The disease can be controlled by crop rotation, flooding, reduced seeding rates, fewer irrigations...

El moho blanco causado por el hongo Sclerotinia (Whetzelinia) sclerotiorum se halla presente en todo el mundo, con mas de 300 plantas hospedantes del patogeno; infecta las flores, cotiledones, semillas, hojas o tejido lesionado. El control de la enfermedad se puede hacer por rotacion de cultivos,...


Schwartz, Howard F.Steadman, James R.[White mold]White mold

Web blight, caused by the fungus Thanatephorus cucumeris, is prevalent in tropical regions with high to moderate temp. and RH; more than 200 plant species serve as hosts to this pathogen. Hyphae can grow rapidly over healthy tissue of leaves, flowers, petioles, and pods. For efficient control, th...

La mustia hilachosa, causada por el hongo Thanatephorus cucumeris, prevalece en las regiones tropicales con una temp. y HR entre moderada y alta; mas de 200 especies vegetales le sirven de hospedante al patogeno. Las hifas del hongo pueden crecer rapidamente en el tejido sano de las hojas, flores...


Gálvez E., Guillermo E.Mora, B.Pastor Corrales, Marcial A.[Web blight]Web blight

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

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