Table 6 Mean values for chlorophyll index (SPAD units), thylakoid membrane damage (F_o/F_m ratio; unitless) and quantum yield of PSII (ΦPSII; unitless) of six highest (top) and six lowest (bottom) ranked wheat–alien chromosome lines along with CS check under irrigation (control) and drought stress (water withheld for 16 d) (Experiment 3)

Top 6

TA7598

54.25 ± 0.65

49.30 ± 0.80

TA5608

0.200 ± 0.012

0.425 ± 0.012

TA7656

0.58 ± 0.02

0.47 ± 0.03

TA7600

40.30 ± 1.20

43.15 ± 1.45

TA7659

0.195 ± 0.011

0.420 ± 0.021

TA7619

0.53 ± 0.01

0.45 ± 0.02

TA7543

42.10 ± 0.50

38.25 ± 0.15

TA5599

0.215 ± 0.011

0.415 ± 0.011

TA7543

0.49 ± 0.01

0.43 ± 0.02

TA7655

42.30 ± 0.40

38.15 ± 0.45

TA5600

0.185 ± 0.012

0.405 ± 0.012

TA5088

0.59 ± 0.01

0.40 ± 0.01

TA5638

47.15 ± 1.65

38.10 ± 0.55

TA5584

0.195 ± 0.013

0.405 ± 0.011

TA5638

0.51 ± 0.01

0.39 ± 0.01

TA5088

46.15 ± 0.35

36.90 ± 1.30

TA3583

0.225 ± 0.011

0.400 ± 0.011

TA7545

0.47 ± 0.01

0.37 ± 0.01

Bottom 6

TA5637

43.60 ± 1.30

23.80 ± 0.45

TA7599

0.190 ± 0.010

0.260 ± 0.012

TA7544

0.53 ± 0.01

0.13 ± 0.01

TA3583

47.85 ± 1.76

21.45 ± 1.15

TA5088

0.195 ± 0.012

0.255 ± 0.016

TA7667

0.37 ± 0.01

0.13 ± 0.01

TA7657

34.85 ± 0.75

20.85 ± 0.75

TA5617

0.220 ± 0.015

0.255 ± 0.013

TA6656

0.43 ± 0.01

0.12 ± 0.01

TA5640

30.00 ± 0.45

20.75 ± 0.35

TA5638

0.155 ± 0.016

0.255 ± 0.012

TA3583

0.46 ± 0.01

0.11 ± 0.01

TA7664

34.50 ± 1.10

19.95 ± 0.36

TA7619

0.210 ± 0.012

0.255 ± 0.012

TA5584

0.52 ± 0.01

0.11 ± 0.01

TA5584

39.35 ± 0.45

19.60 ± 1.02

TA7656

0.195 ± 0.015

0.255 ± 0.011

TA5636

0.47 ± 0.01

0.11 ± 0.01

Check (CS)

TA3008

32.3 ± 1.10

21.05 ± 0.45

TA3008

0.220 ± 0.011

0.355 ± 0.011

TA3008

0.47 ± 0.03

0.32 ± 0.01

LSD (Genotype)

1.89

0.017

0.020

LSD (Genotype x Stress)

1.86

0.003

0.005