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Table 3 Effects of qHd1 on yield traits in Trail-I, III and IV of the multiple sowing-date experiment

From: Natural variation at qHd1 affects heading date acceleration at high temperatures with pleiotropism for yield traits in rice

Trial Trait CJ1-Phenotypic meana P A b R2 (%)c CJ2-Phenotypic mean P A R2 (%)
(Sowing date) NILZS97 NILMY46 NILZS97 NILMY46
I (28 Apr) NP 6.61 6.43 0.1769    6.82 6.46 0.0087 −0.18 3.6
  NGP 109.4 109.4 0.9649    105.2 106.7 0.3825   
  TGW 25.50 25.71 < 0.0001 0.11 9.5 25.40 25.49 0.1194   
  SF 88.17 89.02 0.1391    88.13 88.15 0.9611   
  GY 17.36 16.70 0.0599    17.56 16.53 0.0086 −0.51 3.6
III (20 May) NP 7.16 7.15 0.9210    6.65 6.71 0.6642   
  NGP 110.1 105.6 0.0001 −2.28 7.3 115.0 108.9 < 0.0001 −3.07 9.9
  TGW 24.74 24.56 0.0002 −0.09 8.1 25.02 24.80 0.0004 −0.11 8.4
  SF 83.23 83.46 0.5555    83.94 84.88 0.0418 0.47 2.0
  GY 18.55 17.72 0.0500    18.32 17.57 0.0701   
IV (15 Jun) NP 8.46 8.59 0.5240    7.82 7.83 0.9624   
  NGP 101.4 98.9 0.1892    106.5 105.6 0.5625   
  TGW 27.04 25.06 < 0.0001 −0.99 68.3 26.73 24.36 < 0.0001 −1.19 79.6
  SF 82.11 84.20 0.0005 1.05 7.3 83.34 85.32 0.0014 0.99 5.9
  GY 20.74 18.96 0.0006 −0.89 6.6 20.57 18.37 < 0.0001 −1.10 9.8
  1. NP number of panicle per plant, NGP number of grains per panicle, TGW 1000-grain weight (g), SF spikelet fertility rate (%), GY grain yield per plant (g)
  2. aNILZS97 and NILMY46 are near isogenic lines having homozygous qHd1 alleles from Zhenshan 97 and Milyang 46, respectively
  3. badditive effect of replacing a Zhenshan 97 allele with a Milyang 46 allele
  4. cproportion of phenotypic variance explained by the QTL effect