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RRIC100、RRIC102和RRIC103是从生势好、抗白粉病的品系RRIC52为亲本培育出来的,在一九六六年和一九六七年定植于不同气候条件的高级系比里,已经显不出产量和付性状最佳的组合,它在大胶园小规模种植的产量资料也得到了证实。对它们在一些地区的变异性的评定,在一些农业气候区,到处表明RRIC100在第一割年产量最高,RRIC102、RRIC103则在第二、三、四割年产量最高。RRIC121在重复的初级系比试验中,表现抗南美叶疫病,产量较RRIC102、RRIC103还要高,一九七八年参加国际系比试验,它也能与国外选出的最佳品系相媲美。
RRIC100, RRIC102 and RRIC103 were bred from RRIC52, a well-established, powdery mildew resistant line, and have not been shown in the high-level lines of different climates in 1966 and 1967 Yield and pay the best combination of traits, its large-scale planting in the plastic plant yield data also been confirmed. Assessment of their variability in some areas shows that in some agro-climatic zones, RRIC100 is the most productive in the first crop year and RRIC102 and RRIC103 have the highest yields in the second, third and fourth crop years. RRIC121 showed resistance to leaf blight of South America against repeated primary lineage tests, with a higher yield than RRIC102 and RRIC103. In 1978, it participated in international ratio tests and was comparable to the best lines selected from abroad.