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The objectives of this paper were to examine cultivar differences of aboveground rice plant morphology and structure at the early tillering stage, and analyze its potential correlations with yield. The 4 rice cultivars, Liangyou108 (hybrid long-grain rice, V1), 86You8 (hybrid round-grain rice, V2), Nanjing43 (round-grain rice, V3), and Yangtao6 (long-grain rice, V4), were grown in field. Their rice plant morphology and structure (RPMS) parameters and yield were measured. The 1st, 2nd, and 3rd leaf blade length, width, and bowstring length on the main stem, and the 1st leaf sheath length, tangent angle, and bowstring angle (between blade and main stem) among 4 cultivars at the 3rd or 4th maximum blade length period on the main stem all had significant differences (P |
