Fig. 4
From: Realized Genetic Gain in Rice: Achievements from Breeding Programs
Summary of the literature on genetic gain in rice. Panel (A) shows the number of studies published each year. Panel (B) indicates the distribution by country of the studies (LAC: Latin America and the Caribbean). Panel (C) details the number of genotypes, the number of trials, and the period used for the various estimates of the rate of genetic gain. In grey are the historical studies, and in red are the era studies. Panel (D) indicates the distribution of types of material between era and historical studies. More information on the studies summarized in this figure is available in Tables S1 and S2