Figure 2
From: Changes in soybean cultivars released over the past 50 years in southern Brazil

Seed yield (A), 100-seed weight (B), seeds per area (C), seeds per pod (D), pods per area (E) and harvest index (F) with year of release (YOR) of 26 soybean cultivars evaluated in the 2017 and 2018 harvest seasons. Black lines represent significant linear regression. m, slope; r, Pearson correlation coefficient; ns, non-significant; * p ≤ 0.05; ** p ≤ 0.01; and *** p ≤ 0.001.