CUTTINGS OF MARCELA (Achyrocline satureioides) UNDER DIFFERENT ROOTING PERIODS AND INDOLBUTIRIC ACID DOSES
Abstract
Two assay objecting rooting development of marcela cutting were evaluated: 1) evaluation of rooting development under different periods (15, 30, 45, 60 days); 2) rooting cuttings under different doses (O, 50, 150, 250 ppm) of indolbutyric acid IRA, at 10 and 20 days. Experimental design of randomized blocks was utilized in the first essay and 4 x 2 factorial in the second. Apical softwood cutting, 15 cm long were arranged in isopor seedling boxes, 72 in each box. In the second essay cuttings were dipping in the solution of AIB for a periods of 24 hours. The rooting of cuttings showed development from 15 days, however, the best rooting formation was around 45 days; different AIB doses when compared with control showed the best rooting, however the estimam dose of 180 ppm was the more adequate; A113 allowed higher fresh and dray weight of roots and decreasing root periods at least 10 days.
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