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Single chromosome substitution lines developed using a durum wheat cultivar Langdon (LDN) as a recipient and three wild emmer wheat accessions (DIC) as donors, and their designated names.

 
Chromosome PI 481521 (521) PI 478742 (742) Israel A (ISA)
1A LDN(521-1A) LDN(742-1A) LDN(ISA-1A)
2A LDN(521-2A) n/a LDN(ISA-2A)
3A LDN(521-3A) n/a LDN(ISA-3A)
4A LDN(521-4A) LDN(742-4A) LDN(ISA-4A)
5A LDN(521-5A) LDN(742-5A) LDN(ISA-5A)
6A LDN(521-6A) LDN(742-6A) LDN(ISA-6A)
7A LDN(521-7A) LDN(742-7A) LDN(ISA-7A)
1B LDN(521-1B) LDN(742-1B) LDN(ISA-1B)
2B LDN(521-2B) LDN(742-2B) n/a
3B LDN(521-3B) n/a LDN(ISA-3B)
4B LDN(521-4B) LDN(742-4B) LDN(ISA-4B)
5B LDN(521-5B) LDN(742-5B) LDN(ISA-5B)
6B LDN(521-6B) LDN(742-6B) LDN(ISA-6B)
7B LDN(521-7B) LDN(742-7B) LDN(ISA-7B)
Lines with winter growth habit were not included in this study.
n/a, not available.



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Mean squares for seed germination tests based on germination rate (GR) and germination index (GI) data.

 
Source df GR GI
Genotype (G) 36 2507.52 0.188
Environment (E) 4 6706.43 0.673
G × E 144 264.55 0.017
Error 370 98.27 0.008
*** Significant at the 0.0001 probability level (F-test).



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Spearman's rank correlation coefficients calculated for pairwise comparisons between germination index (GI) and preharvest sprouting (PHS) scores from all nine environments investigated.

 
2005GI Fargo 2005GI Prosper 2006GIFargo 2006GI Prosper 2008GI Ithaca 2005PHS Ithaca 2006PHS Ithaca 2007PHS Ithaca 2008PHS Ithaca
2005 Fargo
2005 Prosper 0.67
2006 Fargo 0.55 0.43
2006 Prosper 0.52 0.55 0.42
2008 Ithaca 0.46 0.52 0.35 0.43
2005 PHS −0.18 −0.08 −0.17 0.21 −0.01
2006 PHS 0.26 0.33 0.07 0.15 0.22 0.11
2007 PHS 0.19 0.21 0.08 −0.03 0.22 0.03 0.28
2008 PHS 0.12 0.16 −0.02 0.07 0.24 0.02 0.36 0.19
* Significant at the 0.05 probability level.
*** Significant at the 0.001 probability level.



View Full Table | Close Full ViewTable 4.

Combined mean values of germination rate (GR) and germination index (GI) over five environments, and mean values of preharvest sprouting (PHS) scores and their ranks in individual environment. Genotypes underlined showed large genetic effects on both seed dormancy and PHS resistance.

 
Germination PHS score
GR mean GI mean 2005 (rank) 2006 (rank) 2007 (rank) 2008 (rank) Overall mean
LDN 84.98 0.45 3.20 (33) 1.93 (17) 2.10 (34) 1.13 (23) 1.98
LDN(521-1A) 79.70 0.44 1.17 (14) 3.93 (33) 1.20 (17) 1.47 (26) 1.94
LDN(521-1B) 90.20 0.56 3.00 (31) 1.60 (11) 0.60 (5) 0.20 (3) 1.35
LDN(521-2A) 69.20 0.36 0.97 (9) 2.45 (23) 0.93 (11) 0.40 (10) 1.19
LDN(521-2B) 56.94 0.32 3.33 (34) 0.67 (2) 0.50 (4) 0.33 (7) 1.21
LDN(521-3A) 43.60 0.21 0.87 (7) 0.60 (1) 0.07 (1) 1.07 (20) 0.65
LDN(521-3B) 74.00 0.44 2.07 (23) 4.13 (35) 2.00 (32) 1.80 (29) 2.50
LDN(521-4A) 64.02 0.38 1.77 (21) 1.53 (10) 0.73 (8) 1.60 (27) 1.41
LDN(521-4B) 84.37 0.50 1.03 (10) 2.00 (18) 1.87 (31) 1.80 (30) 1.68
LDN(521-5B) 85.36 0.48 2.40 (28) 2.53 (24) 0.93 (13) 1.07 (21) 1.73
LDN(521-6A) 88.40 0.58 3.50 (35) 4.07 (34) 0.83 (9) 2.53 (37) 2.73
LDN(521-6B) 76.85 0.45 3.00 (32) 2.93 (26) 2.73 (37) 2.20 (34) 2.72
LDN(521-7A) 85.17 0.50 2.20 (24) 0.93 (6) 1.30 (20) 0.80 (15) 1.31
LDN(521-7B) 69.34 0.39 0.17 (1) 2.00 (19) 1.80 (30) 0.53 (11) 1.13
LDN(742-1A) 64.51 0.35 1.70 (19) 2.07 (21) 0.93 (14) 1.07 (22) 1.44
LDN(742-1B) 73.35 0.43 2.37 (27) 1.87 (15) 0.30 (3) 0.13 (1) 1.17
LDN(742-2B) 79.03 0.47 1.63 (18) 1.93 (16) 0.87 (10) 0.33 (8) 1.19
LDN(742-4A) 73.44 0.44 2.03 (22) 3.73 (31) 1.77 (29) 1.73 (28) 2.32
LDN(742-4B) 77.75 0.40 1.20 (15) 1.00 (7) 1.00 (15) 0.93 (19) 1.03
LDN(742-5B) 81.81 0.46 1.50 (17) 1.67 (12) 1.53 (26) 0.93 (18) 1.41
LDN(742-6A) 90.14 0.62 2.73 (30) 3.27 (28) 2.53 (36) 2.07 (32) 2.65
LDN(742-6B) 73.49 0.42 4.17 (37) 4.93 (37) 1.47 (24) 2.40 (35) 3.24
LDN(742-7A) 83.44 0.53 2.20 (26) 2.07 (20) 1.13 (16) 2.13 (33) 1.88
LDN(742-7B) 78.12 0.45 2.20 (25) 1.73 (14) 0.73 (7) 0.40 (9) 1.27
LDN(ISA-1A) 87.64 0.55 1.17 (12) 3.67 (30) 2.07 (33) 1.20 (24) 2.03
LDN(ISA-1B) 91.33 0.55 0.83 (6) 3.10 (27) 1.27 (19) 0.60 (12) 1.45
LDN(ISA-2A) 95.30 0.70 1.77 (20) 4.47 (36) 1.40 (23) 1.40 (25) 2.26
LDN(ISA-3A) 45.42 0.24 0.57 (3) 0.80 (5) 1.20 (18) 0.87 (17) 0.83
LDN(ISA-3B) 62.95 0.39 0.90 (8) 0.73 (4) 0.93 (12) 0.87 (16) 0.86
LDN(ISA-4A) 93.32 0.62 1.17 (13) 2.60 (25) 2.40 (35) 1.80 (31) 1.95
LDN(ISA-4B) 92.87 0.61 0.60 (4) 0.73 (3) 0.30 (2) 0.27 (6) 0.48
LDN(ISA-5A) 89.82 0.58 0.80 (5) 1.73 (13) 1.40 (22) 0.80 (14) 1.16
LDN(ISA-5B) 77.41 0.41 1.27 (16) 3.47 (29) 1.73 (28) 0.13 (2) 1.65
LDN(ISA-6A) 96.63 0.70 0.50 (2) 1.53 (9) 0.65 (6) 0.27 (5) 0.75
LDN(ISA-6B) 65.53 0.39 3.57 (36) 2.27 (22) 1.33 (21) 0.60 (13) 1.94
LDN(ISA-7A) 82.15 0.49 2.53 (29) 3.80 (32) 1.50 (25) 2.47 (36) 2.58
LDN(ISA-7B) 65.15 0.36 1.10 (11) 1.13 (8) 1.70 (27) 0.20 (4) 0.97
LSD (P < 0.05) 7.03 0.06 1.17 1.62 1.54 1.18