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Table 4 Shoots fresh weight, shoots dry weight, no. of tubers/plant, and weight of tubers/plant at harvesting time of 21 potato (Solanum tuberosum L.) cultivars

From: Response of potato (Solanum tuberosum L.) cultivars to drought stress under in vitro and field conditions

Cultivar

Shoots fresh weight (g)

Shoots dry weight (g)

No. of tubers/plant

Weight of tubers /plant (g)

No drought

60%a

40%

20%

No drought

60%

40%

20%

No drought

60%

40%

20%

No drought

60%

40%

20%

Agata

802.3

702.0

665.0

524.1

72.50

59.17

48.20

41.17

5.90

5.33

3.75

2.10

540.0

390.4

270.1

130.3

Almond

750.0

266.7

222.0

130.0

70.50

39.50

31.25

20.50

7.07

4.27

1.21

0.21

560.0

320.0

160.0

21.0

Anya

546.7

520.0

290.0

310.0

55.50

50.60

32.65

32.83

7.55

3.27

0.56

0.13

535.0

290.0

150.0

15.0

Atlantic

890.0

750.0

510.0

259.0

75.50

61.50

40.25

31.50

5.60

5.17

2.37

1.92

500.0

410.0

241.0

115.1

Burren

885.0

562.0

254.0

132.0

77.50

55.50

35.67

23.50

6.37

5.63

1.91

0.64

567.1

335.0

171.1

46.0

Cara

651.0

415.0

212.0

148.0

63.83

33.50

31.47

21.50

6.63

5.37

1.94

0.70

560.0

328.0

172.1

36.0

Champion

648.0

401.0

141.0

124.0

60.50

31.83

22.36

20.50

6.17

5.20

1.64

0.65

541.0

315.0

161.0

25.0

Desiree

658.0

255.0

154.0

110.0

64.50

22.50

23.65

18.50

6.33

4.73

1.78

0.49

544.0

315.0

176.0

31.0

Diamond

953.0

858.1

756.7

526.7

77.50

50.15

40.15

35.50

6.63

6.33

4.79

2.40

534.0

435.0

277.0

139.1

Gala

955.0

248.0

147.0

101.0

75.50

25.50

21.50

16.15

5.47

3.97

1.22

0.28

555.0

304.2

156.0

22.0

Gazella

647.0

214.0

145.0

124.0

64.24

23.10

20.36

18.54

5.47

3.63

1.10

0.30

545.0

301.0

154.0

21.0

Kennebec

621.0

587.0

501.0

152.0

61.58

42.36

38.47

20.10

5.70

5.11

1.91

1.20

570.0

346.0

230.0

105.01

King Edward

663.0

441.0

412.0

295.0

63.55

34.50

32.50

26.14

4.57

3.54

1.90

0.60

551.0

317.0

173.1

25.0

Lady Balfour

665.0

214.0

197.0

114.0

64.21

23.44

19.70

17.54

7.30

5.40

1.74

0.64

567.0

325.1

171.2

24.0

Lady Rosetta

612.0

256.0

214.0

101.0

60.14

24.15

23.44

15.96

6.60

5.67

1.78

0.58

555.0

325.0

171.2

35.0

Marble

615.0

263.0

231.0

121.0

61.47

27.44

25.00

17.54

6.27

3.63

1.37

0.60

554.0

312.0

170.6

31.0

Marfona

611.0

211.0

141.0

111.0

60.50

22.36

19.57

17.41

5.50

3.46

1.43

0.59

551.0

309.0

165.0

21.0

Maritiema

663.0

223.0

204.0

142.0

64.65

25.65

21.40

19.57

6.90

5.30

1.56

0.66

541.0

315.0

174.0

25.0

Mizen

647.0

314.0

241.0

184.0

63.25

31.50

26.50

21.20

6.63

3.64

1.10

0.31

556.0

308.3

156.0

20.0

Russet Burbank

980.0

866.7

633.3

386.7

76.38

69.58

46.57

32.54

5.47

4.93

2.92

1.88

567.4

371.0

245.0

125.4

Spunta

646.7

266.7

190.0

110.0

64.20

29.50

21.10

17.54

6.40

5.30

1.79

0.91

570.0

341.0

173.5

26.0

LSD (0.05)

25.0421

9.3321

0.621

25.1312

  1. Plants were grown in field under three different regimes of drought (60%, 40% or 20% of moisture content) compared with the control (no drought). Values are means (n = 10) of three replicates of the combined analysis of the first and second season and significant differences were calculated using LSD test
  2. aSoil moisture content