Correlation coefficients for 12 agronomic traits in 2008 and 2009.

<p>Note: Above the diagonal is the Pearson correlation coefficient in 2008 and below the diagonal there is the Pearson correlation coefficient in 2009. HD: Heading days, PH: Plant height, SS: Seed set rate, PL: Panicle length, GL: Grain length, GW: Grain width, 1000GW: 1000-grain weight, FLL: Flag leaf length, FLW: Flag leaf width and PN: Panicles number per plant.</p><p>**,* represents significant correlation at α = 0.01 and 0.05, respectively.</p><p>Correlation coefficients for 12 agronomic traits in 2008 and 2009.