Abstract
Increasing soybean production through plant crossing helps to supply soybean needs. Three-way crossing of three parents, Grobogan, Anjasmoro, and Dega 1 is expected to increase soybean productivity. Interbreeding is an effort to form a basic population to increase genetic diversity. Based on this, this study aims to determine the diversity of genotypes and phenotypes of the F2 population resulting from a cross between three soybean parents [Glycine max (L.) Merrill]. This research was conducted on Tanjung Selamat Village, Sunggal District, Deli Serdang Regency land. Observations were made by observing all plant populations in the field. Characters observed include plant height, flowering age, number of primary branches, and harvest age. The results showed that the diversity of genotypes and phenotypes of the F2 population varied, this was based on the highest standard deviation value in the F2 population compared to the 3 parent soybean plants. The plant height character has a high diversity value based on the KKG and KKF values.
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