pnut pnut Peanut Science 0095-3679 0095-3679 American Peanut Research and Education Society 10.3146/i0095-3679-8-1-14 Articles An F2 Yield Trial in Peanuts1 Ray O. Hammons and W. D. Branch 2 Supervisory Research Geneticist, AR, SEA, USDA and Assistant Geneticist, Dep. of Agron., Univ. of Georgia, Coastal Plain Sta., Tifton, GA 31793

1Contribution from Agricultural Research, Science and Education Administration, U. S. Department of Agriculture and Department of Agronomy, University of Georgia, Coastal Plain Station, Tifton, GA. Supported in part by grants from the Georgia Peanut Commission.

 1 1981 8 1 53 56 10 4 1981 American Peanut Research and Education Society 1981 American Peanut Research and Education Society Abstract

An F2 yield trial in peanuts (Arachis hypogaea L.) was conducted in 1978 to evaluate 25 entries in a six replicate randomized complete block design. Entries included progenies from sixteen intrasubspecific cross combinations and their representative parents: seven component lines of two U. S. cultivars, ‘Florunner’ and ‘Florigiant’, and two peanut introductions, ‘Makulu Red’ and ‘486 GKP’.

Progeny and parental performances were determined for eight quantitative traits: yield, fancy pods, meat content, total sound mature kernels, other kernels, extra large kernels, damaged kernels, and 100 seed weight.

Hybridization between adapted and unadapted genotypes led to a reduction in performance characteristics. However, cross populations were identified as having selection potential for improving yield and grade.

 Key Words Groundnut; , Intrasubspecific cross combinations; , Arachis hypogaea L