Table 2 Analysis of variance (F-values) for GY, grain components and some physiological traits of rice among years, varieties and treatments.

From: The different influences of drought stress at the flowering stage on rice physiological traits, grain yield, and quality

Source of variation

df

GY

SPN

FG

CH

LWP

ALTG

Pn

Gs

Tr

IWUE

Δ

Year (Y)

1

0.08 ns

0.05 ns

0.02 ns

20.5**

748**

12.6**

1.52 ns

4.20 ns

8.38*

2.19 ns

5.01*

Varieties (V)

1

3.33 ns

12.2**

5.81*

248**

227**

68.5**

1.56 ns

1.09 ns

63.0**

28.5**

100**

Treatment (T)

1

352**

137**

159**

230**

469**

574**

142**

176**

509**

119**

1.13 ns

Y × V

1

19.9**

0.79 ns

3.40 ns

9.21 ns

319**

83.5**

2.01 ns

0.37 ns

22.7**

3.82 ns

1.68 ns

Y × T

1

15.5**

0.15 ns

10.6**

14.9**

80.5**

75.8**

0.16 ns

1.26 ns

0.08 ns

2.42 ns

19.0**

V × T

1

1.95 ns

1.66 ns

0.50 ns

52.0**

9.83**

45.8**

0.37 ns

4.52 ns

3.47 ns

0.29 ns

3.13 ns

  1. Grain yield, GY; Spikelets per panicle, SPN; Filled grains, FG; Chalkiness, CH; Leaf water potential, LWP; Air-leave temperature gap, ALTG; Net photosynthetic, Pn,; Stomatal conductance, Gs; Instantaneous water use efficiency, IWUE; Carbon isotope discrimination, Δ.
  2. *Significant at the 0.05 probability level.
  3. **Significant at the 0.01 probability level.
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