Table 5 The effect of three irrigation water regimes; total water applied (TWA in Mm); fractional interception (FI), Light intercepted (LI) and radiation use efficiency (RUE), relative growth rate (RGR, mg mg^− 1 day^− 1), relative height growth rate (RHR, Mm mm^− 1 day^− 1), crop height (mm), Leaf number (plant^− 1) and Leaf area index of fodder radish during 2021/22 and 2022/23 winter seasons.

LINE 2

W1

2021/22

305

0.65 ± 0.04^a

50.23 ± 3.04^a

1.62 ± 0.37^b

3.23 ± 0.05^a

1.71 ± 0.05^a

53.90 ± 6.09^a

22.83 + 1.84^a

3.27 ± 0.63^a

W2

2021/22

220

0.59 ± 0.09^a

45.38 ± 7.08^a

2.88 ± 0.66^a

3.33 ± 0.14^a

1.73 ± 0.02^a

54.82 ± 2.79^a

24.75 ± 1.38^a

2.98 ± 0.26^a

W3

2021/22

180

0.47 ± 0.08^b

35.84 ± 6.11^b

1.45 ± 0.32^b

2.99 ± 0.11^b

1.43 ± 0.02^b

27.53 ± 1.47^b

17.48 ± 3.87^b

1.50 ± 0.16^b

W1

2022/23

366

0.72 ± 0.03^a

61.10 ± 2.32^a

3.40 ± 0.70^a

3.24 ± 0.05^a

1.73 ± 0.05^a

54.90 ± 6.09^a

23.33 ± 1.84^a

5.03 ± 0.66^a

W2

2022/23

245

0.73 ± 0.01^a

61.73 ± 0.81^a

2.40 ± 0.15^b

3.34 ± 0.14^a

1.74 ± 0.02^a

55.82 ± 2.79^a

25.25 ± 1.38^a

4.38 ± 0.81^a

W3

2022/23

188

0.49 ± 0.04^b

41.32 ± 3.28^b

1.12 ± 0.40^c

3.01 ± 0.10^b

1.45 ± 0.02^b

28.53 ± 1.47^b

17.98 ± 3.87^b

1.45 ± 0.40^b

ENDURANCE

W1

2021/22

305

0.61 ± 0.08^a

46.95 ± 6.03^a

2.20 ± 0.34^b

3.32 ± 0.08^a

1.81 ± 0.03^a

66.20 ± 4.10^a

22.39 ± 3.86^a

3.58 ± 0.38^a

W2

2021/22

220

0.59 ± 0.03^a

45.22 ± 2.45^a

3.040 ± 0.85^a

3.29 ± 0.13^a

1.77 ± 0.02^a

60.60 ± 2.91^a

23.58 ± 3.18^a

3.13 ± 0.70^a

W3

2021/22

180

0.36 ± 0.03^b

27.76 ± 2.40^b

0.95 ± 0.13^c

3.02 ± 0.13^b

1.49 ± 0.02^b

31.88 ± 1.77^b

16.10 ± 0.59^b

2.18 ± 0.53^b

W1

2022/23

366

0.77 ± 0.05^a

65.38 ± 3.89^a

1.74 ± 0.12^b

3.33 ± 0.08^a

1.82 ± 0.03^a

67.20 ± 4.10^a

22.89 ± 3.86^a

4.27 ± 0.32^a

W2

2022/23

245

0.71 ± 0.06^a

60.77 ± 5.35^a

3.23 ± 0.70^a

3.30 ± 0.15^a

1.78 ± 0.02^a

61.60 ± 2.91^a

24.08 ± 3.18^a

4.34 ± 0.12^a

W3

2022/23

188

0.34 ± 0.07^b

29.09 ± 6.28^b

1.24 ± 0.58^b

3.04 ± 0.12^b

1.51 ± 0.02^b

32.88 ± 1.77^b

16.60 ± 0.59^b

2.25 ± 0.26^b