Item

Mean ± SE

Single tuber weight (g)

Tuber No of 6 plants

Marketable yield percentage, %

Cull, %

(≥50 g)

Large (≥150 g)

Medium (150 g ≥ W ≤ 100 g)

Small (100 W ≤ 50 g)

Season

Spring

88.41 ± 1.04^{A †}

34.81 ± 0.3^B

30.12 ± 0.5^B

26.94 ± 0.63^A

27.93 ± 0.6^A

15.01 ± 0.67^A

Fall

116.27 ± 1.04^B

29.56 ± 0.3^A

27.01 ± 0.5^A

28.19 ± 0.63^A

29.69 ± 0.6^B

15.11 ± 0.67^A

Irrigation method (I)

TF

100.67 ± 1.47^B

27.39 ± 0.43^B

27.82 ± 0.73^B

26.37 ± 0.89^A

27.70 ± 0.85^A

18.12 ± 0.95^B

PF

89.94 ± 1.47^A

25.37 ± 0.43^A

25.37 ± 0.73^A

29.69 ± 0.89^B

30.64 ± 0.85^B

14.31 ± 0.95^A

TP

103.43 ± 1.47^C

36.42 ± 0.43^D

30.73 ±0.73^C

28.32 ± 0.89^AB

26.77 ± 0.85^A

14.17 ± 0.95^A

TL

115.31 ± 1.47^D

31.92 ± 0.43^C

30.35 ± 0.73^C

25.87 ± 0.89^A

30.14 ± 0.85^B

13.65 ± 0.95^A

Non-uniform depth (U)

U3

97.26 ± 1.8^A

29.79 ± 0.53^B

23.86 ± 0.89^A

26.03 ± 1.09^B

27.50 ± 1.04^ABC

22.61 ± 1.16^C

U13

102.47 ± 1.8^B

32.58 ± 0.53^C

27.17 ± 0.89^B

28.25 ± 1.09^BC

26.73 ± 1.04^AB

17.86 ± 1.16^B

U23

104.52 ± 1.8^C

35.29 ± 0.53^D

31.65 ± 0.89^C

31.19 ± 1.09^C

26.47 ± 1.04^A

10.69 ± 1.16^A

U33

105.48 ± 1.8^C

39.79 ± 0.53^E

31.51 ± 0.89^C

29.77 ± 1.09^C

30.43 ± 1.04^CD

8.30 ± 1.16^A

U43

101.46 ± 1.8^B

31.79 ± 0.53^C

30.13 ± 0.89^C

28.03 ± 1.09^BC

32.09 ± 1.04^D

9.76 ± 1.16^A

U53

102.83 ± 1.8^B

23.83 ± 0.53^A

27.07 ± 0.89^B

22.12 ± 1.09^A

29.65 ± 1.04^BCD

21.16 ± 1.16^C