DSpace Collection:http://dspace.univ-setif.dz:8888/jspui/handle/123456789/25352026-05-12T01:48:05Z2026-05-12T01:48:05Zدراسة ارتباطات الصفات و الأجيال عند عشائر من القمح الصلب(Triticum durum Desf.) بالمناطق شبه الجافةOulmi, AFellahi, ZSemcheddine, NBenmahammed, Ahttp://dspace.univ-setif.dz:8888/jspui/handle/123456789/25362018-08-08T09:19:57Z2018-08-08T00:00:00ZTitre: دراسة ارتباطات الصفات و الأجيال عند عشائر من القمح الصلب(Triticum durum Desf.) بالمناطق شبه الجافة
Auteur(s): Oulmi, A; Fellahi, Z; Semcheddine, N; Benmahammed, A
Résumé: The
use of
c
orrelation coefficients
has been a key
of the
breeding programs success
. Breed
ers, during the
selection process, most often rely on these indicators, which provide a large number of benefits, such as
estimation of the response to selection and contribute to increase its efficiency, making possible to improve
more than one trait at a
time. In this context, a field study was conducted during the 2009
-
2013 crop years on
the Experimental Station of the Technical Institute of Field Crops (ITGC) of Sétif. It aims to study the
correlations and the interactions between the pheno
-
morpho
-
physi
ological traits of F3
-
F7 durum wheat
(
Triticum durum
Des
f
.) generations. The results of the general analysis of the inter
-
traits association indicated a
positive and significant correlation between grain yield, economic yield and number of spikes in all hy
brids
Ofanto/MBB, Ofanto/Waha and Ofanto/Mrb
5
, which allows us to propose the biomass and spikes number as
early and rapid selection criteria for screening desirable wheat genotypes in semi
-
arid areas. The study of the
relationship showed the absence of si
gnificant correlations between yield and the abiotic stresses resistance
attributes (TCV, DSI). However, a significant negative and significant correlation between relative water content
and canopy temperature has been found, suggesting that genotypes with
high leaves water content have a
more active respiratory process, making the canopy cover fresher. The regression analysis showed a linear
positive trend of grain yield on spikes number and economic yield2018-08-08T00:00:00Z