Exploiting synthetic hexaploids for abiotic stress tolerance in wheat
Material type:
ArticleLanguage: English Publication details: Ethiopia : CIMMYT, 1999.Subject(s): Online resources:
In:
The Tenth regional wheat workshop : for Eastern, Central and Southern Africa p. 542-552Summary: Screening for tolerance to abiotic stresses (toxic levels of salt and aluminum, waterlogging, and drought) was conducted in Mexico from 1994 to 1998. The screened materials were elite synthetic hexaploids (Triticum turgidum x Aegilops tauschii) seeded in replicated designs. Wide variation for tolerance was observed in the various synthetics when subjected to different abiotic stresses. Results indicate that the synthetically derived wheats were in most instances significantly superior in abiotic tolerance when compared to their durum progenitors and the tolerant hexaploid checks. This shows that the synthetic amphiploids possess genetic diversity for tolerance to abiotic stresses of the diploid donor species used in their synthesis (given that the durum cultivars were susceptible). The synthetic hexaploids cross readily with T aestivum and offer new genetic variation for abiotic tolerance. Utilization in wheat improvement of this novel source of genetic diversity will be elucidated.
| Item type | Current library | Collection | Call number | Copy number | Status | Date due | Barcode | Item holds | |
|---|---|---|---|---|---|---|---|---|---|
| Conference paper | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Publications Collection | Look under series title (Browse shelf(Opens below)) | 1 | Available | 2G629146 |
Browsing CIMMYT Knowledge Center: John Woolston Library shelves, Collection: CIMMYT Publications Collection Close shelf browser (Hides shelf browser)
| Look under series title Genotype x environment interaction for alpha-amylase enzyme activity in wheat grain | Look under series title A new identification system for South African wheat cultivars based on HMW and LMW gluten subunit composition | Look under series title Characterization of backcross derivatives from crosses of Thinopyrum distichum with triticale and rye | Look under series title Exploiting synthetic hexaploids for abiotic stress tolerance in wheat | Look under series title Evaluation of introduced bread wheat germplasm under Ethiopian conditions | Look under series title Progress of the Southern African Development Community Wheat Yield Nursery (SADCWYN), 1996-1997 | Look under series title Yield potential of durum wheat on well-drained nitosol soils |
Open Access
Screening for tolerance to abiotic stresses (toxic levels of salt and aluminum, waterlogging, and drought) was conducted in Mexico from 1994 to 1998. The screened materials were elite synthetic hexaploids (Triticum turgidum x Aegilops tauschii) seeded in replicated designs. Wide variation for tolerance was observed in the various synthetics when subjected to different abiotic stresses. Results indicate that the synthetically derived wheats were in most instances significantly superior in abiotic tolerance when compared to their durum progenitors and the tolerant hexaploid checks. This shows that the synthetic amphiploids possess genetic diversity for tolerance to abiotic stresses of the diploid donor species used in their synthesis (given that the durum cultivars were susceptible). The synthetic hexaploids cross readily with T aestivum and offer new genetic variation for abiotic tolerance. Utilization in wheat improvement of this novel source of genetic diversity will be elucidated.
Text in English
0007|AGRIS 0101|R99-00CIMPU|AL-Wheat Program
CIMMYT Publications Collection
Click on an image to view it in the image viewer