TY  - PRO
AU  - Chang Naitao
AU  - Duveiller,E.|Dubin,H.J.|Reeves,J.|McNab,A.
AU  - Gao Zenggui
AU  - Jia Xianlu
AU  - Wu Wei
AU  - Wu Yousan
ED  - Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico)
TI  - In vitro selection for spot blotch resistance in wheat
SN  - 970-648-001-3
U1  - 633.1194 
PY  - 1998///
CY  - Mexico, DF (Mexico)
PB  - CIMMYT|UCL|BADC
KW  - Bipolaris
KW  - Blotches
KW  - Callus
KW  - Disease resistance
KW  - AGROVOC
KW  - Embryonic development
KW  - In vitro selection
KW  - Plant diseases
KW  - Spots
KW  - Triticum
KW  - Plant breeding
KW  - CIMMYT
N2  - Spot blotch of wheat, caused by Bipolaris sorokiniana (syn. Helminthosporium sativa), is an important wheat disease in China. The main varieties currently grown in China are susceptible to the disease, and sources of resistance are limited. A research program was undertaken in 1988-92 to improve resistance by developing a practical procedure for somaclonal selection for spot blotch resistance. Resistance enhanced mutants were obtained from four spring wheats. After field testing the regenerated plantlets for four successive generations, resistance was found to be stable. Resistance evaluation in the field suggested that in vitro selection of embryonic calli using H. sativa toxins was effective. The mutants obtained expressed higher levels of stable, heritable resistance
ER  -