Distribution of Risotto rice varieties using yield, grain, quality, pasting, and texture-related traits. Principal component analysis (A) and K-means clustering analysis (B). PC1: principal component 1, PC2: principal component 2, HD: heading date, DAS: days after seeding, CL: culm length, PL: panicle length, PN: number of panicles per hill, NS: number of spikelets per panicle, RRG: ratio of ripened grain, BRR: brown/rough rice ratio, GL: grain length, GW: grain width, GT: grain thickness, RLW: ratio of length to width, TGW: 1,000-grain weight, HR: head rice, CR: chalky rice, DR: damaged rice, BR: broken rice, CoR: colored rice, PaT: pasting temperature, PV: peak viscosity, TV: trough viscosity, FV: final viscosity, BD: breakdown, SB: setback, HN: hardness, AN: adhesiveness, TN: toughness, SN: stickiness. Dim1: dimension 1, Dim2: dimension 2.

Korean J. Breed. Sci. 2025;57:13-28 https://doi.org/10.9787/KJBS.2025.57.1.13

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