3.9 Relative contributions of inbred line and sowing date to KN/ear, TKW, and yield
Variance partitioning analysis was conducted to analyze the relative contributions of inbred line and sowing date to KN/ear, TKW, and yield of Te, Tr, and Te×Tr, respectively (Figure 10). Sowing date had a much larger contribution than inbred lines. The contribution of sowing date to KN/ear ranged from 70.3% in Te (Figure 10A1) to 64.2 % in Tr (Figure 10A2), with inbred lines having a smaller contribution in Te than in Tr and Te×Tr (7.3% vs 13.2% and 10.8%; Figure 10A1-A2). As for TKW, inbred line had a larger contribution in Te (23.8%) compared to Tr and Te×Tr, and sowing date in Te×Tr had a larger contribution (47.4%) than in Te and Tr (Figure 10B1-B3). Overall, sowing date or inbred line contributed similarly to yield between Te and Tr (62.5% vs 61.9% or 15.2% vs 15.1%), and sowing date had a comparably larger contribution and inbred line had a smaller contribution in Te×Tr (Figure 10C1-C3).