Collection, evaluation and conservation of germplasm of cassava

By:

RAJENDRAN, P.G

Contributor(s):

Material type: Article

ArticleLanguage: English Description: p. 9-11Subject(s): LOC classification:

26319

In: In: Central Tuber Crops Research Institute. Annual Progress Report 1978-1979Summary: En 1978-79 el banco de germoplasma de yuca del Central Tuber Crops Research Institute (India) se enriquecio con la adquisicion de 27 accesiones nativas y con 111 y 22 selecciones provenientes del International Institute of Tropical Agriculture en Nigeria y del CIAT en Colombia, resp. Se efectuaron algunos estudios sobre la precocidad con 200 accesiones cosechadas a los 6 o a los 10 meses; mas DEL 20 por ciento de las accesiones estudiadas mostraron precocidad, produciendo hasta un 80-100 por ciento del rendimiento cuando se cosecharon a los 6 meses. En la evaluacion por resistencia a la infestacion de plagas, se observaron 300 accesiones para determinar el dano de acaros; las var. de hojas no pubescentes fueron menos resistentes que las de hojas pubescentes. Se evaluo la incidencia de CAMV en un total de 120 lineas de una poblacion de plantulas de Nigeria; solo 48 lineas permanecieron completamente sanas. (CIAT)Summary: In 1978-79 the cassava germplasm of the Central Tuber Crops Research Institute (India) was enriched with the acquisition of 27 indigenous entries and 111 and 22 selections from the International Institute of Tropical Agriculture (Nigeria) and CIAT (Colombia), resp. Studies on earliness were carried out on 200 entries that were harvested either at 6 or 10 mo.; above 20 percent of the entries studied showed earliness, giving even 80-100 percent of the yield at the 6-mo. harvesting. In the evaluation of resistance to pest infestation, 300 entries were observed for mite damage; hairless-leaved var. were less resistant than hairy-leaved var. A total of 120 lines of a Nigerian seedling population were also screened for CAMV incidence; only 48 lines remained completely healthy. (CIAT)

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Holdings
Item type	Current library	Collection	Call number	Copy number	Status	Date due	Barcode	Item holds
Book Chapters	CIAT Library Document collection CINFOS	Document Collection CINFOS	26319 (Browse shelf(Opens below))	c.1	Short Loan

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En 1978-79 el banco de germoplasma de yuca del Central Tuber Crops Research Institute (India) se enriquecio con la adquisicion de 27 accesiones nativas y con 111 y 22 selecciones provenientes del International Institute of Tropical Agriculture en Nigeria y del CIAT en Colombia, resp. Se efectuaron algunos estudios sobre la precocidad con 200 accesiones cosechadas a los 6 o a los 10 meses; mas DEL 20 por ciento de las accesiones estudiadas mostraron precocidad, produciendo hasta un 80-100 por ciento del rendimiento cuando se cosecharon a los 6 meses. En la evaluacion por resistencia a la infestacion de plagas, se observaron 300 accesiones para determinar el dano de acaros; las var. de hojas no pubescentes fueron menos resistentes que las de hojas pubescentes. Se evaluo la incidencia de CAMV en un total de 120 lineas de una poblacion de plantulas de Nigeria; solo 48 lineas permanecieron completamente sanas. (CIAT) spa

In 1978-79 the cassava germplasm of the Central Tuber Crops Research Institute (India) was enriched with the acquisition of 27 indigenous entries and 111 and 22 selections from the International Institute of Tropical Agriculture (Nigeria) and CIAT (Colombia), resp. Studies on earliness were carried out on 200 entries that were harvested either at 6 or 10 mo.; above 20 percent of the entries studied showed earliness, giving even 80-100 percent of the yield at the 6-mo. harvesting. In the evaluation of resistance to pest infestation, 300 entries were observed for mite damage; hairless-leaved var. were less resistant than hairy-leaved var. A total of 120 lines of a Nigerian seedling population were also screened for CAMV incidence; only 48 lines remained completely healthy. (CIAT) eng