Table 1 Stress response indicators of the landraces sapito, mantequilla, and Tórtola under the treatments (Control, B. proteolyticus Cyn1, B. safensis Cyn2, and consortium) and temperature (25, 30, 35 °C and 40 °C).

From: Auxin producing plant growth promoting bacteria enhance temperature stress tolerance in Chilean common bean landraces

Parameters

25°

Mantequilla

Tórtola

Sapito

Control

B. proteolyticus

B. safensis

Consortium

Control

B. proteolyticus

B. safensis

Consortium

Control

B. proteolyticos

B. safesis

Consortium

Total length (cm)

31.75 ± 5.9

36.5 ± 5.8

17.25 ± 20.4

6.25 ± 12.5

28.5 ± 3

25 ± 17.7

18.3 ± 21.3

29.5 ± 2.08

30.25 ± 2.06

15 ± 17.3

14.5 ± 16.7

33.25 ± 38.4

Plumule length (cm)

8.375 ± 2.8

9 ± 1.7

2.625 ± 3.3

2.5 ± 5

7.5 ± 4

8.25 ± 6.0

5.375 ± 6.2

8 ± 0.8

12.375 ± 0.6

5.5 ± 6.4

4.125 ± 4.9

6 ± 7.1

Radicle length (cm)

6.375 ± 3.8

3.25 ± 0.5

2.5 ± 3.3

0.75 ± 1.5

3.075 ± 3.4

4.25 ± 4.34

2 ± 2.3

5.45 ± 1.7

4 ± 1.15

1.25 ± 1.5

1.45 ± 1.6

1.5 ± 1.7

Root length (cm)

12.875 ± 3.4

10.5 ± 2.0

4.75 ± 5.5

2 ± 4

9.75 ± 2.6

9.825 ± 8.1

8 ± 9.6

13.2 ± 2.5

8.625 ± 1.88

5.25 ± 6.07

5.875 ± 6.9

5.875 ± 6.7

Number of roots

9.25 ± 2.2

13 ± 2.1

4.5 ± 5.2

3 ± 6

36 ± 21.7

17.25 ± 11.5

15.75 ± 18.4

28.5 ± 5.9

22.5 ± 6.19

14.25 ± 16.5

12.5 ± 17.9

11 ± 12.7

Shoot length (cm)

12.00 ± 2.4

14.125 ± 2.2

7.25 ± 8.6

3.75 ± 7.5

14.375 ± 3.63

10.625 ± 7.9

7.375 ± 9.1

16.8 ± 1.8

13.75 ± 2.5

9.75 ± 11.4

8.075 ± 9.5

7.25 ± 9.5

Number of leaves

7.25 ± 1.5

7.75 ± 0.5

3.75 ± 4.7

1.25 ± 2.5

9.75 ± 3.5

6 ± 4

4 ± 4.6

8.75 ± 1.5

8 ± 0

4 ± 4.6

4 ± 4.6

4.5 ± 5.2

Number of nodes

6.50 ± 0.5

8.75 ± 2.0

4 ± 4.6

1.75 ± 3.5

4.5 ± 0.5

3.25 ± 2.2

2 ± 2.3

4.75 ± 0.5

4 ± 0

1.75 ± 2.06

2 ± 2.3

2 ± 2.4

Color of leaves

Green

Green

Green

Green

Green

Green

Green

Green

Green

Green

Green

Green

Presents symptoms*

0

0

0

0

1

0

0

1

1

0

1

0

% Relative germination

100

100

50

25

100

75

50

75

100

50

50

50

% Toxicity

0.0

49.0

60.8

88.2

0.0

-38.2

35.0

-77.2

C0.0

68.8

63.8

62.5

Index of tolerance

1.0

0.8

0.4

0.2

1.0

1.0

0.8

1.4

1.0

0.6

0.7

0.7

Vigor index

15,450

14,831

1722

188

14,016

7829

2950

16,632

11,859

2559

2372

2130

Parameters

30°

Mantequilla

Tórtola

Sapito

Control

B. proteolyticus

B. safensis

Consortium

Control

B. proteolyticus

B. safensis

Consortium

Control

B. proteolyticus

B. safensis

Consortium

Total length (cm)

37 ± 2.4

30.5 ± 1.9

23.25 ± 15.6

24.5 ± 16.5

37 ± 4.2

38 ± 4.9

29.5 ± 20.0

41.75 ± 8.7

10 ± 20

12 ± 24

27.75 ± 25.8

18.25 ± 21.07

Plumule length (cm)

14 ± 2.5

11 ± 1.4

8.5 ± 5.8

8.5 ± 5.7

10.75 ± 2.8

13.5 ± 3.4

9 ± 6.6

16.75 ± 3.3

2.75 ± 5.5

3.25 ± 6.5

8.25 ± 5.6

7.5 ± 8.6

Radicle length (cm)

2.875 ± 0.8

2.75 ± 0.6

2 ± 1.4

1.75 ± 1.2

2.75 ± 0.95

4 ± 2.0

2.25 ± 1.7

3.875 ± 0.85

1 ± 2

0.75 ± 1.5

1.5 ± 1.2

2 ± 2.4

Root length (cm)

9.75 ± 1.7

8.5 ± 1.2

8.5 ± 5.8

9 ± 6.2

7.75 ± 3.3

10.75 ± 1.5

6.5 ± 4.7

9.25 ± 2.21

2.25 ± 4.5

3 ± 6

6.75 ± 5.7

5.5 ± 6.5

Number of roots

54.75 ± 9.1

57.5 ± 8.0

45.5 ± 31.5

38.75 ± 26.8

58.75 ± 14.6

44.5 ± 7.7

42.5 ± 28.5

53.5 ± 11.7

15.5 ± 31

12.75 ± 25.5

28.75 ± 23.5

26 ± 30.1

Shoot length (cm)

12 ± 1.15

8.5 ± 1.9

9 ± 6.05

7.25 ± 4.9

10 ± 4.55

9 ± 4.5

7 ± 4.6

11.5 ± 1.9

1.75 ± 3.5

1.5 ± 3

6.25 ± 6.3

5 ± 5.8

Number of leaves

6.75 ± 2.5

6.25 ± 2.0

6 ± 4

6.5 ± 4.4

7.25 ± 1.5

8 ± 0

5.75 ± 3.8

8 ± 0

2 ± 4

2 ± 4

3 ± 3.4

3 ± 3.55

Number of nodes

5 ± 2

5.75 ± 1.5

4.5 ± 3.1

5.25 ± 3.5

6.75 ± 0.95

6.5 ± 0.5

5 ± 3.55

8.75 ± 1.25

1.5 ± 3

2.25 ± 4.5

4.5 ± 3.6

4.75 ± 6.1

Color of leaves

Green

Green

Green

Green

Green

Green

Green

Green

Green

Green

Green

Green

Presents symptoms*

1

2

1

1

1

3

4

3

3

4

4

3

% Relative germination

100

100

75

75

100

100

75

100

100

100

300

200

% Toxicity

0.0

4.3

30.4

39.1

0.0

-45.5

18.2

-40.9

0

25

-50

-100

Index of tolerance

1.0

0.9

0.9

0.9

1.0

1.4

0.8

1.2

1.0

1.3

3.0

2.4

Vigor index

11,700

7225

5738

4894

7750

9675

3413

10,638

394

450

12,656

5500

Parameters

35°

Mantequilla

Tórtola

Sapito

Control

B. proteolyticus

B. safensis

Consortium

Control

B. proteolyticus

B. safensis

Consortium

Control

B. proteolyticus

B. safensis

Consortium

Total length (cm)

30 ± 2.94

30 ± 1.6

27.25 ± 2.21

30.75 ± 2.21

8 ± 16

20 ± 13.39

17.5 ± 11.73

12 ± 14.07

20 ± 13.75

18.75 ± 12.68

17.5 ± 11.73

18.25 ± 12.17

Plumule length (cm)

13.75 ± 1.5

20 ± 2.5

17.5 ± 7.14

17 ± 1.41

4.25 ± 8.5

11.5 ± 7.76

12 ± 8.12

6 ± 7.11

9.25 ± 6.18

8.5 ± 5.97

9.25 ± 6.29

7.75 ± 5.18

Radicle length (cm)

3 ± 1.15

3.25 ± 1.25

2.25 ± 0.5

2.5 ± 0.57

3.75 ± 7.5

5.75 ± 4.34

5 ± 3.74

2.25 ± 2.62

2.25 ± 1.70

5 ± 5.09

4 ± 2.94

1.75 ± 1.25

Root length (cm)

13 ± 1.41

9.75 ± 1.89

9.5 ± 1

11 ± 1.63

3.25 ± 6.5

8 ± 5.59

6.5 ± 4.35

4.5 ± 5.25

8 ± 5.59

7.75 ± 5.31

9.5 ± 6.35

7.5 ± 5.06

Number of roots

47.5 ± 14.5

42.7 ± 14.1

44.25 ± 13.8

51.5 ± 18.64

9.5 ± 19

40.75 ± 28.37

32.5 ± 23.57

25.5 ± 31.29

50.25 ± 35.5

33.25 ± 23.90

54.5 ± 40.22

50.75 ± 34.63

Shoot length (cm)

7.75 ± 1.25

7.25 ± 1.25

7.5 ± 0.5

2.75 ± 1.5

2.25 ± 4.5

8.25 ± 5.56

6 ± 4.08

4.5 ± 5.25

8 ± 5.41

6.25 ± 4.34

7.25 ± 4.99

7.25 ± 4.85

Number of leaves

3 ± 2

4.75 ± 1.89

2.75 ± 1.5

8.5 ± 2.08

1.5 ± 3

4.5 ± 3.31

4.25 ± 3.5

1.75 ± 2.36

3.5 ± 2.38

6.5 ± 5

3.75 ± 2.5

3.75 ± 2.5

Number of nodes

4.5 ± 1

5.25 ± 1.5

3.5 ± 0.57

4 ± 0

3.5 ± 5

4 ± 2.38

4 ± 2.70

2.75 ± 3.20

4.5 ± 3

5.25 ± 3.77

3.5 ± 2.51

4.5 ± 3

Color of leaves

Green

Green and Brown

Green and Brown

Green and Brown

Green

Green and yellow

Green

Green

Green

Green

Green

Green

Presents symptoms

1

2

1

1

2

3

2

2

2

2

1

2

% Relative germination

100

100

100

100

100

300

300

200

100

100

100

100

% Toxicity

0.0

-8.3

25.0

16.7

0.0

-53.3

-33.3

40.0

0.0

-122.2

-77.8

22.2

Index of tolerance

1.0

0.8

0.7

0.8

1.0

2.5

2.0

1.4

1.0

1.0

1.2

0.9

Vigor index

10,075

7069

7125

3025

731

19,800

11,700

4050

6400

4844

6888

5438

Parameters

40°

        

Mantequilla

Control

B. proteolyticus

B. safensis

Consortium

Total length (cm)

7.7 ± 3.21

9.3 ± 2.08

10.3 ± 0.57

14.0 ± 1.73

        

Plumule length (cm)

4.0 ± 1.73

5.0 ± 1

5.0 ± 1

4.0 ± 1

        

Radicle length (cm)

1.3 ± 1.04

1.0 ± 0

0.7 ± 0.57

1.2 ± 0.76

        

Root length (cm)

2.0 ± 1

1.7 ± 0.57

1.0 ± 0

2.0 ± 1

        

Number of roots

4.3 ± 1.52

1.7 ± 0.57

8.3 ± 4.04

5.7 ± 1.52

        

Shoot length (cm)

6.0 ± 1.73

7.7 ± 2.51

4.3 ± 3.05

5.3 ± 1.52

        

Number of leaves

2.0 ± 1

3.3 ± 2.51

1.3 ± 1.15

4.3 ± 2.08

        

Number of nodes

3.3 ± 1.15

4.3 ± 1.15

3.3 ± 0.57

5.7 ± 0.57

        

Color of leaves

Green and yellow

Green

Green

Green

        

Presents symptoms

4

4

4

4

        

Relative germination (%)

100

100

100

100

        

% Toxicity

0

25

50

12.5

        

Index of tolerance

1

1.2

2

1

        

Vigor index

1200

1277.77

433.33

1066.66

        
  1. Where * is symptoms through visual evaluation in a scale of 0 to 4.