Knowledge Center Catalog

Inheritance of resistance to Septoria tritici leaf blotch in selected durum wheat lines

Gilchrist, L.

Inheritance of resistance to Septoria tritici leaf blotch in selected durum wheat lines - Mexico, DF (Mexico) CIMMYT : 1995 - Printed

Durum wheat cultivars derived from CIMMYT germplasm are widely grown in West Asia, North Africa and the Mediterranean region. Septoria tritici leaf blotch is a major disease on durum wheat in those areas. To study the inheritance of resistance, parents and crosses of Altar 84 and Sula (resistant) with Bejaga Red (susceptible) were inoculated in the field with a virulent isolate of Septoria tritici (Mycosphaerella graminicola). Preliminary results from F2 and F3 generations indicated that resistance in both Altar 84 and Sula is controlled by two recessive genes. The use of this source of resistance in breeding is recommended.|Los cultivares de trigo duro derivados del germoplasma de CIMMYT son cultivados ampliamente en el este de Asia, norte de Africa y la region del Mediterraneo. E1 tizon causado por Septoria es una enfermedad importante en trigo duro en estas areas. Para estudiar la herencia de la resistencia, los padres y cruzas de Altar 84 y Sula (resistentes) con Bejaga Red (susceptible) fueron inoculados en el campo con un aislamiento virulento de Septoria tritici (Mycosphaerella graminicola). Los resultados preliminares de las generaciones F2 y F3 indican que la resistencia en ambos Altar 84 y Sula esta controlada por dos genes recesivos. E1 uso de estas fuentes de resistencia es recomendada en mejoramiento genetico.


English

968-6923-49-7


Blights
Crossbreeding
Disease resistance
Genetic inheritance
Germplasm
Plant diseases
Recessive genes
Selection
Septoria
Triticum durum

CIMMYT

633.1194 / GIL

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