In order to verify the possibility of increasing fruit seting in non-partenocarpic "caipira" type cucumber (hybrid Guarani AG-370) through NAA spraying, three trails were performed. In trial 1, seven treatments, resulted from two factors combination: three NAA levels (25, 50 and 100 mg.L-1) and two spraying intervals in whole plant (each 7 or 14 days), besides control without any spraying, were evaluated. There were six replicates of four plants per plot in a randomized block design. In trial 2, four treatments, NAA aplication on flower at anthesis with 25, 50 and 100 mg.L-1, were evaluated in a randomized block design with six replicates of four plants per plot. In trial 3, four treatments, NAA aplication on flower at anthesis with 100, 200 and 400 mg.L-1, were evaluated in a randomized block design with five replicates of five plants per plot. There was no fruit seting increasing with whole plant spraying, in any level or day interval. However, there was fruit seting increasing with flower spraying, until 200 mg.l-1 of NAA, when 38% of fruit setting was achieved.
Cucumis sativus; parthenocarpy; auxin; protected cultivation
