Genetic wealth of tuber crops

By:

RAJENDRAN, P.G

Contributor(s):

Material type: Article

ArticleLanguage: English Description: 33(12):13-15Subject(s):

LOC classification:

22050

In: Indian FarmingSummary: Se determina el rango de variabilidad genetica disponible entre los materiales de tuberculos tropicales del Central Tuber Crops Research Institute (CTCRI), Trivandrum, India. Se incluyen consideraciones generales sobre yuca, batata, name, aroideos, taro y otros. El material de yuca del CTCRI, 847 accesiones exoticas y 480 nativas, proviene de Colombia, Nigeria, Republica de Malgache, Uganda, Ghana, Tailandia, Malaya y Sri Lanka; los materiales nativos provienen en su mayoria del estado de Kerala con el 80 por ciento del area total sembrada en yuca en el pais. Los cv. se evaluan por su importancia economica y caracteristicas de calidad. Mas del 80 por ciento de la coleccion consiste en tipos que florecen y dan fruto, especialmente los de Nigeria y Colombia. El material de Nigeria posee mayor resistencia al virus del mosaico en el campo que el material colombiano. El rendimiento de raices varia de 0.2 a 7.0 kg/planta; el periodo de maduracion de 6-12 meses; el porcentaje de almidon de 15-35; el porcentaje de MS de 29-44 y el contenido de HCN de 10 a 350 microgramos/g. Los materiales mas prometedo-res son Ci-167, Ci-480, Ca-27, Ca-56, Ce-182, Ce-212, Ce- 308 y Ce-455 con un alto potencial de rendimiento y bajo HCN; Ce- 36, Ce-185, Ce-401, Ce-451, Ce-528 y Ce-538 con un alto contenido de almidon; Ci-175, Ci-206, Ci-856 y H-165, cv. precoces. (CIAT)Summary: The spectrum of genetic variability available among the genetic stock of tropical tuber crops maintained at the Central Tuber Crops Research Institute (CTCRI), Trivandrum, India, is assessed. General considerations about cassava, sweet potato, yam, arrowroot, taro, and others are given. The cassava genetic material of CTCRI, 847 exotic accessions and 480 native, comes from Colombia, Nigeria, Malagasy Republic, Uganda, Ghana, Thailand, Malaya, and Sri Lanka; most of the native material come from the state of Kerala that has 80 percent of the total area planted to cassava in the country. The cv. are evaluated for their economic importance and quality characteristics. Over 80 percent of the collection consists of flowering types that produce fruits, especially those from Nigeria and Colombia. The material from Nigeria has higher resistance to the mosaic virus in the field than the material from Colombia. Root yield varies from 0.2 to 7.0 kg/plant; the period of maturity is 6- 12 mo.; the starch content, 15-35 percent; the percent of DM varies from 29 to 44, and HCN content from 10 to 350 micrograms/g. The most promising material are Ci-167, Ci-480, Ca-27, Ca-56, Ce-182,Ce-212, Ce-308, and Ce-455 with a high yield potential and low HCN; Ce-36, Ce-185, Ce-401, Ce-401 Ce-451, Ce-528, and Ce-538 with a high starch content; Ci-175, Ci-206, Ci-856, and H-165, early maturing cv. (CIAT)

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Holdings
Item type	Current library	Collection	Call number	Copy number	Status	Date due	Barcode	Item holds
Journal Article	CIAT Library Document collection CINFOS	Document Collection CINFOS	22050 (Browse shelf(Opens below))	c.1	Short Loan		100054498

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Se determina el rango de variabilidad genetica disponible entre los materiales de tuberculos tropicales del Central Tuber Crops Research Institute (CTCRI), Trivandrum, India. Se incluyen consideraciones generales sobre yuca, batata, name, aroideos, taro y otros. El material de yuca del CTCRI, 847 accesiones exoticas y 480 nativas, proviene de Colombia, Nigeria, Republica de Malgache, Uganda, Ghana, Tailandia, Malaya y Sri Lanka; los materiales nativos provienen en su mayoria del estado de Kerala con el 80 por ciento del area total sembrada en yuca en el pais. Los cv. se evaluan por su importancia economica y caracteristicas de calidad. Mas del 80 por ciento de la coleccion consiste en tipos que florecen y dan fruto, especialmente los de Nigeria y Colombia. El material de Nigeria posee mayor resistencia al virus del mosaico en el campo que el material colombiano. El rendimiento de raices varia de 0.2 a 7.0 kg/planta; el periodo de maduracion de 6-12 meses; el porcentaje de almidon de 15-35; el porcentaje de MS de 29-44 y el contenido de HCN de 10 a 350 microgramos/g. Los materiales mas prometedo-res son Ci-167, Ci-480, Ca-27, Ca-56, Ce-182, Ce-212, Ce- 308 y Ce-455 con un alto potencial de rendimiento y bajo HCN; Ce- 36, Ce-185, Ce-401, Ce-451, Ce-528 y Ce-538 con un alto contenido de almidon; Ci-175, Ci-206, Ci-856 y H-165, cv. precoces. (CIAT) spa

The spectrum of genetic variability available among the genetic stock of tropical tuber crops maintained at the Central Tuber Crops Research Institute (CTCRI), Trivandrum, India, is assessed. General considerations about cassava, sweet potato, yam, arrowroot, taro, and others are given. The cassava genetic material of CTCRI, 847 exotic accessions and 480 native, comes from Colombia, Nigeria, Malagasy Republic, Uganda, Ghana, Thailand, Malaya, and Sri Lanka; most of the native material come from the state of Kerala that has 80 percent of the total area planted to cassava in the country. The cv. are evaluated for their economic importance and quality characteristics. Over 80 percent of the collection consists of flowering types that produce fruits, especially those from Nigeria and Colombia. The material from Nigeria has higher resistance to the mosaic virus in the field than the material from Colombia. Root yield varies from 0.2 to 7.0 kg/plant; the period of maturity is 6- 12 mo.; the starch content, 15-35 percent; the percent of DM varies from 29 to 44, and HCN content from 10 to 350 micrograms/g. The most promising material are Ci-167, Ci-480, Ca-27, Ca-56, Ce-182,Ce-212, Ce-308, and Ce-455 with a high yield potential and low HCN; Ce-36, Ce-185, Ce-401, Ce-401 Ce-451, Ce-528, and Ce-538 with a high starch content; Ci-175, Ci-206, Ci-856, and H-165, early maturing cv. (CIAT) eng