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Stock‐Scion Interactions of Normal and Fruit Ripening Mutants rin and nor in Tomato
Author(s) -
MIZRAHI Y.,
DOSTAL H. C.,
McGLASSION W. B.,
CHERRY J. H.
Publication year - 1975
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1975.tb03899.x
Subject(s) - ripening , mutant , rootstock , horticulture , biology , ethylene , botany , solanum , biochemistry , gene , catalysis
Scions of the non‐ripening rin and nor tomato strains ( Lycopersicum esculentum Mill.) were grafted on normal understock plants (cv. Rutgers) in an effort to study the influence of roots and vegetative tissue on the ripening behavior of the tomato fruit. Receiprocal grafts of ‘Rutgers’ scions on rin and nor understocks as well as grafted and ungrafted controls were also established. No alteration in the ethylene, and CO 2 evolution and color development of either mutant fruits on normal understock or of normal fruits on mutant understock occurred. We suggest that the inability of rin and nor mutant fruits to ripen normally stems either from the presence in mutant fruit of a non‐translocatable ripening inhibitor, or from the absence of a non‐translocatable ripening factor.