Fig. 1: Age-associated leaf senescence in japonica and indica-type rice plants.
From: Natural variations at the Stay-Green gene promoter control lifespan and yield in rice cultivars
a Representative senescence phenotypes of two japonica (JN, Junam; NP, Nampyeong) and indica (IR72, IR64) type rice plants grown in natural field conditions. Scale bar, 20 cm. Color changes of the flag (b) and second upper (c) leaves during seasonal senescence (1, 4, and 7 weeks after heading). Bars, 5 cm. Quantification of color changes of the flag (d) and second upper (e) leaves at 1, 4, and 7 weeks after heading by Automated Colourimetric Assay. The individual flag and second leaves were categorized into four groups according to their color: green, green-yellow, yellow, and brown. The percentage of each group is presented. Temporal changes of chlorophyll levels in the flag (f) and second upper (g) leaves from 0 to 7 weeks after heading. Color changes (h) and quantification of color (i) of panicles from 1, 4, and 5 weeks after heading. Data are means ± SE; n ≥ 3 independent samples. Source data of Fig. 1d–g and i are provided as a Source Data file.
