Fig 3. Genetic correlation between grain yield and other traits.

In this plot grain yield (GY) was genetically correlated with all the other traits under evaluation and derivate indices in both (A) high nitrogen and well-watered (HNW) and (B) low nitrogen and rainfed (LNR) conditions. The five most correlated traits to grain yield were marked with the asterisk. TKW, thousand kernel weight; TW, test weight; GYD, grain yield deviation; NDVI, normalized difference vegetation index; GPC, grain protein content; GPD, grain protein deviation; YI, yellow index; FLA, flag leaf appearance, DTHD, days to heading; DTA, days to anthesis; DTM days to maturity.