Genetic Gain in Wheat Grain Yield and Nitrogen Use Efficiency at Different Nitrogen Levels in an Irrigated Hot Environment
Table 5
Straw and grain nitrogen uptake (kg/ha), nitrogen harvest index (NHI), and nitrogen utilization efficiency (NUTE) of 12 bread wheat genotypes grown in season 2008 under four N levels at Gezira Research Station Farm, Wad Medani, Sudan.
Straw nitrogen uptake
Grain nitrogen uptake
Nitrogen harvest index
Nitrogen utilization efficiency
Genotype:
Beladi 60
26.5
34.0
0.56
36.1
Giza 155 71
25.3
37.0
0.59
35.2
Condor 78
18.8
44.6
0.70
38.8
Debeira 82
22.9
28.7
0.55
47.4
Wadi Elneel 87
21.2
37.9
0.63
41.8
Elnielain 90
20.2
40.7
0.65
41.0
Nesser 96
18.7
43.6
0.68
39.4
Argine 96
21.3
52.1
0.70
34.1
Imam 00
22.3
37.7
0.62
36.6
Tagana 04
24.6
33.6
0.56
36.1
Khalifa 04
19.7
42.5
0.68
41.3
Bohaine 06
17.7
51.9
0.72
37.8
Significance level
SE±
1.55
3.42
0.027
2.47
N level:
N0
15.8
26.8
0.63
—
N43
19.5
31.3
0.61
43.8
N86
24.4
42.4
0.62
38.8
N129
26.7
60.9
0.68
33.7
Significance level
SE±
0.77
1.71
0.013
1.24
CV %
20.5
23.0
12.5
19.1
,, Significant at , 0.01, and 0.001, respectively.
