Table 3 Mean dry matter (DM) weight, nonstructural carbohydrate (NSC) concentration, and its amount in the leaf sheaths plus stems at maturity, and DM increase from heading to maturity (ΔW) affected by different CO2 concentrations and genotypes averaged for two years (2012 and 2013).

From: Quantitative trait loci for large sink capacity enhance rice grain yield under free-air CO2 enrichment conditions

CO2 concentration

Genotype

DM weight (g m−2)

Stem DM weight (g m−2)

NSC concentration (g kg−1)

NSC amount (g m−2)

ΔW (g m−2)

CO2 concentration (C)

FACE

 

1991

786

305

241

833

Ambient

 

1777

664

264

176

739

Genotype (G)

 

Koshihikari

1874

762a†

294

227a

805

 

CSSL-GN1

1864

691b

286

199b

771

 

NIL-APO1

1913

722ab

273

200b

790

C × G

FACE

Koshihikari

1938

830

326

271aA‡

811

 

CSSL-GN1

1982

738

296

219bA

831

 

NIL-APO1

2051

789

294

233bA

872

Ambient

Koshihikari

1811

693

262

183B

800

 

CSSL-GN1

1746

644

276

179B

711

 

NIL-APO1

1775

654

252

166B

707

ANOVA

CO2 concentration (C)

§

*

**

**

NS

Genotype (G)

NS

**

NS

*

NS

C × G

NS

NS

NS

§

NS

  1. *Significant at P < 0.05. **Significant at P < 0.01. †Means within a column followed by the same lowercase letter do not differ significantly (P < 0.05). ‡Means within a column followed by the same lowercase letter do not differ significantly (P < 0.05) among genotypes for a given CO2 concentration. Means within a column followed by the same uppercase letter do not differ significantly (P < 0.05) between CO2 concentrations for a given genotype. §Significant at P < 0.10. Not significant at P < 0.10.
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