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A Non‐Nodulating Peanut 1
Author(s) -
Gorbet D. W.,
Burton J. C.
Publication year - 1979
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1979.0011183x001900050045x
Subject(s) - biology , arachis hypogaea , rhizobia , rhizobium , inoculation , nitrogen fixation , rhizobiaceae , arachis , bradyrhizobium , botany , symbiosis , horticulture , agronomy , bacteria , genetics
Nodules that form on the roots of peanut ( Arachis hypogaea L.) when infected with Rhizobium are the site of N‐fixation. F 3 plants were identified in a breeding nursery at Marianna, Fla., which showed N starvation symptoms toward maturity and apparently had no nodules on their roots. These plants were derived from a cross between two normal nodulating parents, 487A‐4‐1‐2 ✕ PI 262090. Subsequent evaluations in the F 4 to F 6 generations confirmed that numerous selections from this cross failed to nodulate in the field at Marianna. Growth chamber inoculation studies with various strains of rhizobia confirmed the field evaluations. Seed of selected plants from field plots classified as non‐nodulated were utilized in these studies. Only five of 400 progeny from non‐nodulating plant selections bore nodules in these tests.