Table 1 Yield and yield components in Koshihikari, Koshihikari NIL-GPS, Takanari and Takanari NIL-GPS

From: A natural variant of NAL1, selected in high-yield rice breeding programs, pleiotropically increases photosynthesis rate

Cultivar or NIL

Yield (g m−2)

Spikelets (no. m−2)

Ripening (%)

1000-grain wt. (g)

Koshihikari

560

29,968

84.2

21.7

Koshihikari NIL-GPS

559

28,029

86.1

22.8

(n = 3)

n.s.

n.s.

n.s.

**

Takanari

1,051

59,217

83.1

21.0

Takanari NIL-GPS

1,002

60,797

78.4

20.5

(n = 5)

*

n.s.

*

**

  1. N fertilization was 6 g N m−2 for Koshihikari and its NIL-GPS and 18 g N m−2 for Takanari and its NIL-GPS.
  2. **P < 0.01;
  3. *P < 0.05; n.s., not significant (Student's t-test).
  4. Comparisons were made between each cultivar and the corresponding NIL-GPS.