Table 3 Effect of ACC deaminase containing PGPR in combination with various rates of timber waste biochar (0BC, 1BC and 2BC) on shoot N, P and K concentration under various levels of drought (D).

Control_{(No PGPR+No BC)}

1.66

1.43

1.28

1.45^F

0.29

0.20

0.12

0.20^H

2.06^f–o

1.44 ^r

0.99^s

1.50^I

L. adecarboxylata

2.01

1.93

1.52

1.82 ^E

0.37

0.24

0.21

0.27^FG

2.11^e–o

1.94^i–q

1.62^p–r

1.89^GH

A. fabrum

2.08

1.95

1.64

1.89^DE

0.37

0.25

0.22

0.28^FG

2.13^e–o

2.01^g–p

1.57^qr

1.90^F–H

P. aeruginosa

2.06

1.93

1.56

1.85^E

0.33

0.21

0.19

0.24^GH

2.09^e–o

1.88^k–q

1.52^qr

1.83^H

B. amyloliquefaciens

2.05

1.97

1.63

1.88^DE

0.39

0.26

0.18

0.27^FG

2.15^e–n

2.02^g–p

1.71^o–r

1.96^F–H

1BC

2.24

2.13

1.85

2.07^CD

0.45

0.30

0.22

0.32^EF

2.29^c–l

1.93^i–q

1.73^n–r

1.99^E–H

L. adecarboxylata + 1BC

2.37

2.23

2.00

2.20^BC

0.49

0.33

0.25

0.35^C–E

2.37^b–i

2.14^e–o

1.77^n–r

2.10^D–G

A. fabrum + 1BC

2.47

2.26

1.94

2.22^BC

0.52

0.36

0.30

0.39^B–D

2.42^a–g

2.32^c–k

1.82^n–r

2.19^C–E

P. aeruginosa + 1BC

2.42

2.26

1.97

2.22^BC

0.46

0.35

0.20

0.34^D–F

2.34^c–j

2.27^d–m

1.72^n–r

2.11^D–F

B. amyloliquefaciens + 1BC

2.52

2.35

2.06

2.31^AB

0.54

0.41

0.31

0.42^B

2.50^a–f

2.43^a–g

1.84^m–r

2.25^B–D

2BC

2.59

2.48

1.90

2.32^AB

0.55

0.39

0.28

0.41^BC

2.45^a–g

2.36^b–i

1.92^j–q

2.24^B–D

L. adecarboxylata + 2BC

2.67

2.51

2.15

2.44^A

0.53

0.42

0.31

0.42^BC

2.68^a–d

2.38^b–h

1.86^l–r

2.30^B–D

A. fabrum + 2BC

2.72

2.55

2.06

2.44^A

0.60

0.48

0.39

0.49^A

2.79^ab

2.61^a–d

1.94^i–q

2.44^AB

P. aeruginosa + 2BC

2.77

2.57

2.13

2.49^A

0.55

0.42

0.37

0.45^AB

2.71^a–c

2.53^a–e

1.94^h–q

2.39^BC

B. amyloliquefaciens + 2BC

2.79

2.57

2.17

2.51^A

0.61

0.49

0.40

0.50^A

2.85^a

2.67^a–d

2.35^b–j

2.63^A

ME (D)

2.36^A

2.21^B

1.86^C

0.47^A

0.34^B

0.26^C

2.40^A

2.20^B

1.75^C