Genotype

YP

YS

Mp

GMP

TOL

SSI

STI

421066

53.1

6.1

29.69

18.00

47.0

1.006

0.375

194573.9

42.6

5.3

23.95

15.03

37.3

0.995

0.261

192033.3

38.1

4.2

21.15

12.65

33.9

1.011

0.185

187017.1

51.3

3.1

27.20

12.61

48.2

1.068

0.184

189135.9

21.8

6.7

14.25

12.09

15.1

0.787

0.169

194515.2

23.3

5.8

14.55

11.62

17.5

0.853

0.156

420014

39.4

3.1

21.25

11.05

36.3

1.047

0.141

441097

41.8

2.9

22.35

11.01

38.9

1.058

0.140

K566632

36.9

2.9

19.90

10.34

34.0

1.047

0.124

440287

33.1

2.9

18.00

9.80

30.2

1.037

0.111

441725

12.2

7.8

10.00

9.76

4.4

0.410

0.110

194549.6

26.9

2.7

14.80

8.52

24.2

1.022

0.084

189148.2

38.8

1.7

20.25

8.12

37.1

1.087

0.076

440286

41.4

1.5

21.45

7.88

39.9

1.095

0.072

441538

25.3

1.5

13.40

6.16

23.8

1.069

0.044

422656

12.5

2.1

7.30

5.13

10.4

0.945

0.030

440240

19.6

1.3

10.45

5.05

18.3

1.061

0.029

440001

8.5

2.9

5.70

4.97

5.6

0.749

0.029

Marooko

16.5

1.3

8.90

4.64

15.2

1.047

0.025

401055

5.0

2.3

3.65

3.39

2.7

0.614

0.013

Mean

29.41

3.41

16.41

9..39

26.00

0.95

0.12

LSD(0.05)

5.64

1.35

6.51

3.73

10.32

0.38

0.05

YP: Total root yield under normal irrigation condition; YS: Total root yield under water deficit condition; MP: Mean productivity; GMP: Geometric mean productivity; STI: Stress tolerance index; TOL: Tolerance; SSI: Stress susceptibility index
Table 6: Estimation of drought tolerance indices based on total root yield of sweet potato genotypes under normal irrigation and water deficit conditions in Kiboko (SI= 0.84).