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Within-line pollinations were used when measuring the seed set of plants from seven early generation inbred lines of Primula vulgaris. One high seed setting plant and one low seed setting one were selected from each line and the seed set was evaluated on the offspring from selfings and within-line pollinations of these plants. Regression of offspring on parents for seed set was studied. The slope...
Analyses of a 12 × 12 diallel cross among inbred lines of Primula vulgaris disclosed considerable genetic variation for seed set, with differences between floral morphs accounting for 37.3% of the total variation. The differences between morphs agree with those reported elsewhere, with intra-thrum crosses being almost sterile, and intra-pin crosses relatively fertile. Inter-morph crosses produced...
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