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Table 2 Grain yield and its primary and physiological components for the genotypes grown under greenhouse conditions

From: Stress-induced expression of IPT gene in transgenic wheat reduces grain yield penalty under drought

  

Pots (EXP2)

Microplots (EXP3)

Treatment

G

GY (g pl−1)

GN

IGW (mg)

B (g pl−1)

HI

GY (g m−2)

GN

IGW (mg)

B (g m−2)

HI

WW

WT

32.2a

758.9a

42.5bc

95.6a

0.34a

463.4bc

8651d

53.5a

1265a

0.37c

TR1

31.3a

782.5a

40.3c

93.8a

0.33a

557.8a

11840b

47.2b

1334a

0.42b

TR4

27.8a

707.5a

40.3c

89.1

0.31a

501.6ab

11760b

43.3c

1303a

0.39bc

WD

WT

9.2c

183.3b

50.4a

40.5b

0.22c

392.9c

9029cd

43.1c

933c

0.42b

TR1

16.0b

348.0b

46.8ab

58.9b

0.28b

537.9ab

13693a

39.0d

1114b

0.48a

TR4

14.3bc

282.3b

50.6a

51.4b

0.28b

422.9c

10448bc

40.3cd

1026bc

0.41b

Genotype (G)

ns

ns

ns

ns

ns

**

***

***

ns

**

Water treatment (T)

***

***

***

***

***

**

ns

***

***

**

G × T

ns

ns

ns

ns

ns

ns

*

*

ns

ns

LSD

5.9

185.8

5.3

20.5

0.04

75.8

1518

3.7

143.8

0.03

ΔWW vs WD

WT

23.0

575.5

7.9

55.1

0.12

70.5

1387.2

10.5

331.8

0.05

TR1

15.4

434.4

10.3

37.7

0.06

93.5

1942.5

8.2

277.7

0.07

TR4

13.5

425.2

6.5

35.0

0.04

104.6

2026.9

3.0

220.1

0.03

Significance

**

*

ns

ns

ns

ns

ns

**

ns

ns

  1. WW well-watered, WD water deficit, G genotype, T water treatment, GY grain yield, GN grain number, IGW individual grain number (mg), B above-ground biomass, HI harvest index. In pots, GY, GN, and B are expressed per plant, whereas in microplots, they are expressed per unit area (m2). Asterisks indicate significant differences (*p< 0.1; **p< 0.05; p< 0.001; ns, not significant). Means (n=3) sharing the same letters in columns do not differ (p< 0.1)