|
Sustainable use of winter
Durum wheat landraces under Mediterranean conditions
T. Akar*, Z. Mert, S. Yazar, T. Sanal and M. Avci
Central
Research Institute for Field Crops,
P. O. Box 226 06042 Ulus / Ankara, Turkey.
 *Corresponding
author.
E-mail:
yezakar66@yahoo.com
Accepted
11 June, 2009 |
|
This
research expected to determine new durum wheat germplasm
resistant to biotic and abiotic stress factors. Eighty durum
wheat lines selected from eighteen diverse landraces were
tested together with eight durum wheat cultivars under
reliable yellow rust epidemic during two successive years.
Average infection coefficient of populations and cultivars
was 32.44 in 2003 and 26.24 in 2004, showing severe epidemic
condition which occurred at adult plant stage in 2003.
Because of this the number of selected resistant and
moderately resistant plant material greatly reduced.
According to the yield trial study in which twenty resistant
lines selected out of 30 resistant and moderately from
sixteen populations were included, only two checks
outperformed grand mean (2.48 t ha -1) and two
lines selected from landrace population followed these with
slightly lower yield difference. On the other hand, there
were several lines which performed better than the grand
mean of protein content (13.24%), SDS sedimentation (28.40
ml) and semolina color (24.35) and they ranked in the first
group including the two checks cultivars. Bi- plot analysis
showed that some promising lines with reasonable grain
yields, good quality parameters, winter hardiness and
drought tolerances among yellow rust resistance durum wheat
landraces can be selected for semiarid conditions of
Mediterranean countries for sustainable production.
Key
words:
Durum wheat landraces, yellow rust, yield quality, bi-plot
and sustainability. |
