YE ¼119:52 þ 4:418 Á VPD6 À 1:908 Á VPD12
þ 0:501 Á ARF1234 þ 0:0123 Á PTU56
À 12:116 Á Tmin
ð7:13Þ
where the R
2 is 0.83. It should be considered that the dataset in the Appendix
includes a drought period in 2013. For this reason, the district average of the crop
yield efficiency varies between 38 kg/da and 349 kg/da, and its deviation is 89 kg/da.
Table 7.2 Grouped data segmentation example concerning the correlations to yield efficiency
VPD6
VPD12
ARF1234
PTU56
Tmin7
Yield eff. (kg/da)
6.07
51.01
157.74
3621.39
10.03
38
7.94
20.54
116.64
2690.08
2.51
171
13.03
9.98
81.48
5798.1
9.59
144
20.32
16.44
144.06
5929.16
9.13
271
29.73
12.11
252.22
8066.38
11.39
284
22.66
15.37
293.65
9328.96
13.42
256
13.29
27.97
84.4
8049.57
12.61
136
13.7
27.41
411.56
9282.93
13.77
303
15.7
18.11
396.7
6723.64
12.62
270
14.18
10.26
389.95
7325.63
13.17
349
12.69
17.77
337.21
6396.51
11.7
226
22.76
8.97
172.05
7732.59
10.17
292
13.86
11.5
336.72
5759.22
12.1
268
24.28
6.84
285.96
7509.15
11.66
270
16.42
9.1
373.8
6729.33
12.69
310
14.83
9.2
112.15
5331.35
11.13
203
11.31
27.83
106.98
5140.28
10.82
38
26.43
9.45
81.34
9651.8
12.26
230
14.64
13.43
187.08
5723.36
10.49
160
17.47
39.61
88.26
7665
11.57
89
21.38
17.5
249.22
5737.32
12.06
223
11.27
6.54
188.64
5545.36
11.64
160
20.83
12.64
188.18
5772.36
11.72
254
10.75
77.58
122.3
4583.42
10.23
38
6.47
13.35
240.7
7819.03
11.56
163
19.07
15.12
96.82
7315.67
8.73
233
20.58
23.03
304.04
8779.33
12.76
248
19.76
19.52
127.14
8426.76
8.82
232
21.95
12.31
293.33
8384.5
12.02
317
13.03
15.7
210.9
7231.78
12.06
247
19.13
6.52
233.06
6245.11
11.37
189
Average:
16.630
18.797
214.977
6783.712
11.155
213.290
St.Dev.:
5.638
14.405
103.087
1625.187
2.028
81.659
R:
0.557
À0.652
0.646
0.521
0.310
1.000
118
B. Üstündağ
þ 0:501 Á ARF1234 þ 0:0123 Á PTU56
À 12:116 Á Tmin
ð7:13Þ
where the R
2 is 0.83. It should be considered that the dataset in the Appendix
includes a drought period in 2013. For this reason, the district average of the crop
yield efficiency varies between 38 kg/da and 349 kg/da, and its deviation is 89 kg/da.
Table 7.2 Grouped data segmentation example concerning the correlations to yield efficiency
VPD6
VPD12
ARF1234
PTU56
Tmin7
Yield eff. (kg/da)
6.07
51.01
157.74
3621.39
10.03
38
7.94
20.54
116.64
2690.08
2.51
171
13.03
9.98
81.48
5798.1
9.59
144
20.32
16.44
144.06
5929.16
9.13
271
29.73
12.11
252.22
8066.38
11.39
284
22.66
15.37
293.65
9328.96
13.42
256
13.29
27.97
84.4
8049.57
12.61
136
13.7
27.41
411.56
9282.93
13.77
303
15.7
18.11
396.7
6723.64
12.62
270
14.18
10.26
389.95
7325.63
13.17
349
12.69
17.77
337.21
6396.51
11.7
226
22.76
8.97
172.05
7732.59
10.17
292
13.86
11.5
336.72
5759.22
12.1
268
24.28
6.84
285.96
7509.15
11.66
270
16.42
9.1
373.8
6729.33
12.69
310
14.83
9.2
112.15
5331.35
11.13
203
11.31
27.83
106.98
5140.28
10.82
38
26.43
9.45
81.34
9651.8
12.26
230
14.64
13.43
187.08
5723.36
10.49
160
17.47
39.61
88.26
7665
11.57
89
21.38
17.5
249.22
5737.32
12.06
223
11.27
6.54
188.64
5545.36
11.64
160
20.83
12.64
188.18
5772.36
11.72
254
10.75
77.58
122.3
4583.42
10.23
38
6.47
13.35
240.7
7819.03
11.56
163
19.07
15.12
96.82
7315.67
8.73
233
20.58
23.03
304.04
8779.33
12.76
248
19.76
19.52
127.14
8426.76
8.82
232
21.95
12.31
293.33
8384.5
12.02
317
13.03
15.7
210.9
7231.78
12.06
247
19.13
6.52
233.06
6245.11
11.37
189
Average:
16.630
18.797
214.977
6783.712
11.155
213.290
St.Dev.:
5.638
14.405
103.087
1625.187
2.028
81.659
R:
0.557
À0.652
0.646
0.521
0.310
1.000
118
B. Üstündağ