Fig. 1 Relationship of grain yield (0.14 g H₂O g^-1 fresh weight) with harvest index (A) and total dry matter (B) for the old cultivars released before 1980 and for the new cultivars–lines developed after 1980. The twelve cultivars–lines were grown at the International Rice Research Institute (IRRI) farm and the Philippine Rice Research (PhilRice) farm in the dry season of 1996. Each data point is a mean of four replications within each location

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