Table 2: Grain macronutrient concentration in ten corn cultivars representing five different technological levels in 2006 and 2007, at Rolandia County, Parana State, Brazil.

PKCaMgPKCaMg
  Treatment
20062007
g kg−1

SingleAG9010 3.0a*3.7a0.30b1.37cd4.1b7.7b0.12ab0.92ab
HybridsDKB9502.9a4.0a0.32b1.32d5.1a10.3a0.13ab1.12a
TripleDKB5662.8a3.6a0.31b1.59abc3.8b7.4b0.10b0.90ab
HybridsAG50203.0a3.4b0.38b1.45bcd3.5b6.6b0.15ab0.94ab
DoubleAG20403.4a3.7a0.49ab1.71a4.0b7.7b0.14ab1.00ab
HybridsDKB9792.9a3.5ab0.66a1.39cd4.1b7.3b0.13ab0.77b
CommercialBRS41573.4a3.9a0.46ab1.64ab4.0b7.5b0.13ab0.91ab
VarietiesBR1063.5a3.9a0.39b1.56abcd4.1b8.1b0.18a1.09ab
LandraceGI0453.3a3.8ab0.29b1.55abcd3.4b6.8b0.10b0.89ab
CultivarsPalotina3.1a3.9ab0.36b1.32d3.8b7.7b0.13ab0.84ab

Coefficient of variation1411461118183324

* Averages followed by the same letter in a column did not differ according to Duncan’s multiple range test ( ).