Relationship Among Leaf (Puccinia recondita Roberge ex Desmaz f. sp. tritici) and Yellow (Puccinia striiformis Westendorp. f. sp. tritici) Rust Resistance and Some Agro-Morphologic Traits in Wheat Hybrids at Seedling Stage
Pakistan Journal of Biological Sciences,
2008, 11(1), 1-16.
This research was carried out to determine if dominant morphological
traits can be use instead of the rust resistance tests as marker characters
for some agro-morphologic traits both leaf (Puccinia recondita
Roberge ex Desmaz. f. sp. tritici.) and yellow rust (Puccinia
striiformis Westendorp f. sp. tritici) disease. For this, 13
wheat parent (4 are T. durum Desf. and 9 are T. aestivum
L.) were used and three main agro-morphologic traits (Namely, Leaf Colour
(LC) (Dark and light green, Dg and Lg, relatively); Auricle Colour (AC)
(White and Red, Wh and Re, relatively) and Leaf Waxiness (LW) (Waxy and
Non waxy, Wx and Nw, relatively) were investigated at the seedling stage.
They were found as dominant and concluded that investigated traits could
be used as a morphological marker character for the leaf and yellow rust
disease resistance tests under greenhouse conditions without doing complex
and risky rust tests. And determined that, these traits may be use effectively
without doing the complex rust tests in the limited populations or for
the pre-selections. Doing with this, it will be bring a great accuracy,
successful, correction and speed to the rust disease studies and provides
important and valuable information for the plant breeders and pathologists.
In addition, knowing of the resistance type (genetic mechanism etc.) in
wheat facilitates it will be make to find out the suit and most appropriate
breeding and selection methodology/methodologies.
Cited References Fulltext