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Table 1. The characteristic of studied genotypes
¹Z¿|¯
PÀ»
`ÌeÂ¿ÃZ¼
¹Z¿|¯
Code/Name
Origin* Genotype No.
Code/Name
Origin
1
2
3
4
5
6
7
8
9
10
ADYT106-1-1D
ADYT106-4-1D
ADYT106-15-1D
ADYT106-18-1D
ADYT106-20-1D
ADYT206-1-1D
ADYT206-4-1D
ADYT206-3-1D
ADYT206-5-1D
ADYT206-9-1D
DARSI
DARSI
DARSI
DARSI
DARSI
DARSI
DARSI
DARSI
DARSI
DARSI
13
14
15
16
17
18
19
20
21
22
ADYT206-18-1D
ADYT206-20-1D
ADYT306-4-1D
ADYT306-5-1D
ADYT306-9-1D
ADYT306-10-1D
ADYT306-13-1D
ADYT306-14-1D
Saji
Zardak
DARSI
DARSI
DARSI
DARSI
DARSI
DARSI
DARSI
DARSI
DARSI
DARSI
11
12
ADYT206-11-1D
ADYT206-15-1D
DARSI
DARSI
23
Sardari
DARSI
`ÌeÂ¿ÃZ¼
Genotype No.
*
PÀ»
*
DARSI= Dryland Agricultural Research Sub-Institute
ÊYµZ{{ÁYºË{ÉÁZ¯cZ¬Ì¬veÃZ´fËYÊZÀYÂÅZ»MµÁ|m
Table 2. Meteorological details in Dray land Agricultural Research Sub-Institute (Sararood) for 2010-2011
cropping season
Ê³|¿Z]
{Y³Ê
f¿ZÄm{ª¸»ÉZ»{ Äm{Z»{Âf» Á{Y| e
d]Â
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0
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temperature
(C
)
f»Ê¸Ì»
Ê^¿
f»
{Y³Ê
f¿Z
½Y|À^zË
º¼ÌÀÌ»º¼Ë¯Z»
Precipitatio
Mean
No.
Relative
Evaporation
Month
ÃZ»
Min
Max
temperature
(mm)
n (mm)
freezing moisture
days
(%)
October
0.8
4
34.2
19.9
0
37
204
Æ»
November
23.8
0
28.6
13.4
0
46.5
110.5
½Z]M
December
24.1
-4
21
8.2
21
47
0
}M
January
45.5
-6
13.4
3.8
16
68.5
0
É{
February
69.4
-10
13.6
2.1
22
69.3
0
¾¼Æ]
March
35.3
-7
23.2
7.2
15
53
0
|ÀŸ
April
50.7
93.4
-2.4
25.8
11.4
3
48.6
¾Ë{Á§
May
92.5
3.4
29
15.7
0
59.3
117
dÆ^Ë{Y
June
0.4
5.2
39
22.5
0
26.3
335.5
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conditions for studied genotypes
S.O.V.
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yZ
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279
Cereal Research, Vol. 3, No. 4, 2014 (267-279)
Evaluation of durum wheat advanced genotypes based on drought
tolerance indices
Nasim Khaksar1*, Ezatollah Farshadfar2 and Reza Mohammadi3
1 and 2. Ph. D. Studentand Prof., respectively, Dept. of Agronomy and Plant Breeding, Faculty of
Agriculture,Razi University, Kermanshah 3. Assist. Prof., Dryland Agricultural Research
Sub-Institute, Sararood Station, Kermanshah
(Received: May 29, 2013- Accepted: December 9, 2013)
Abstract
To investigate drought tolerance indices and identify drought tolerant genotypes in durum wheat,
20 advanced durum wheat genotypes along with three checks, Zardak and Saji (durum wheat checks)
and Sardari (bread wheat check) were assessed in a randomized complete block design with 3
replications under two rainfed and supplemental irrigation conditions in the Drayland Agricultural
Research Sub-Institute (Sararood, Kermanshah, Iran) in 2010-11 cropping season. Drought tolerance
indices i.e. mean productivity (MP), tolerance index (TOL), genomic mean productivity (GMP),
harmonic mean (HAM), stress susceptibility index (SSI), stress tolerance index (STI), yield index (YI)
and yield stability index (YSI) were calculated on the basis of grain yield in the both stress and nonstress conditions. The genotypes No. 2, 4, 8, 21 (Saji) and 18 with the highest values of MP, GMP,
HAM and STI were found to be tolerant genotypes, while the genotypes 12, 21 (Zardak), 16 and 19
with the lowest values of TOL and SSI had the least susceptibility to drought stress. Biplot analysis
indicated that the genotypes No. 8, 21 (Saji) and 18 were characterized by the indices of MP, GMP,
HAM and STI as drought tolerant genotypes. The results of this research showed that in all of the
genotypes, genotypes No. 8, 21 and 18 were tolerant genotypes.
Keywords: Drought stress, Drought tolerance indices, Durum wheat, Grain yield
*Corresponding author: [email protected]

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