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A rapid method of determining the percentage of DM and starch in cassava by the use of the specific root density is discussed, and a table, tested under Colombian conditions, is included for var. harvested from 10-12 mo. (CIAT)

Se describe un metodo rapido para determinar el porcentaje de MS y almidon en la yuca mediante la utilizacion de la densidad especifica de las raices, y se incluye una tabla evaluada para var. cosechadas entre 10-12 meses en las condiciones de Colombia. (CIAT)

Research of the physiology section was centered on identifying the characters associated with high root yields and quality in cassava under stress conditions. Plant reaction to water stress was studied, specifically regarding growth and yields of var. M Mex 59 and M Col 22 with a period of artifi...

El enfasis de las investigaciones de la seccion de fisiologia se centro en la identificacion de los caracteres asociados con un alto rendimiento y calidad de las raices en condiciones de estres. Se estudiaron las reacciones de la planta a la sequia, especificamente el desarrollo y los rendimiento...

Research of the physiology section was centered on identifying the characters associated with high root yields and quality in cassava under stress conditions. Plant reaction to water stress was studied, specifically regarding growth and yields of var. M Mex 59 and M Col 22 with a period of artifi...

El enfasis de las investigaciones de la seccion de fisiologia se centro en la identificacion de los caracteres asociados con un alto rendimiento y calidad de las raices en condiciones de estres. Se estudiaron las reacciones de la planta a la sequia, especificamente el desarrollo y los rendimiento...

The factors affecting the quality of cassava roots were studied: var. and age of the plant; DM, starch, and sugar contents in the roots; cyanide contents in leaves and roots. Roots of bitter var. CMC-84 showed higher DM contents than those of sweet var. CMC- 40. Total and reducing sugar contents ...

Se estudiaron los factores que afectan la calidad de las raices como: var.; edad de la planta; contenidos de MS, almidon y azucares en la raiz; y contenidos de cianuro en hojas y raices. Las raices de la var. amarga CMC-84 presentaron mayor contenido de MS que la var. dulce CMC-40. Los contenidos...

The seventh testing cycle for promising CIAT selections under improved, low-input technology was completed in 1981 at 9 locations in Colombia. The overall av. yield of the trials was 8.5 t/ha/yr, which is nearly 3 times the national av. yield of 3-3.5 t/ha. Av. yield of local cv. was about twice ...

Advances in research of the soil and plant nutrition section of CIAT's Cassava Program in 1981 are given regarding symptoms of Ca and S deficiency, germplasm screening for adaptation to high acidity and/or low P; effect of fertilization (long-term fertility); level and time of K application; effe...

During 1981 genotype evaluation and selection continued at the ICA (Instituto Colombiano Agropecuario)-Caribia and the ICA-CIAT- Carimagua stations and at CIAT-Palmira, considered representative sites, resp., of (1) low-input technology with medium to high fertility soils in hot, lowland tropics ...

Durante 1981 se continuo la evaluacion y seleccion de genotipos en ICA (Instituto Colombiano Agropecuario)-Caribia, ICA-CIAT- Carimagua y CIAT--Palmira que son sitios representativos, resp., de tecnologias de 1) bajos insumos en suelos de fertilidad intermedia- alta en el tropico calido de tierra...