ABSTRACT
Knowing the rooting optimum time reduces the potential for diseases and optimizes the use of greenhouse and shade. The aim of this study was to determine rooting period of the hybrid clone of cuttings of Eucalyptus urophylla S.T. Blake and Eucalyptus grandis W. Hill ex Maiden in the greenhouse and shade from different water irrigation level managements applied in minigardens and with two levels of foliar reduction in the minicuttings. The experiment was conducted in the nursery of the Sada Bio Energy and Agriculture Company, Sete Lagoas, Minas Gerais state, Brazil. The experiment was conducted in a randomized block design in factorial arrangement, consisting of seven irrigation management and reduced levels of two leaves (with and without reduction). The treatments were defined according to the daily reading of the Class A tank (T1 = 50% ET0 - single frequency, T2 = 75% ET0 - twice a day, T3 = 100% ET0 - twice a day, T4 = 125% ET0 - three times a day, T5 = 150% ET0 - three times a day, T6 = 100% ET0 - often single-T7 and the company operating Blade - 10.66 mm day-1, eight fertirrigation times a day for five minutes with a flow rate of 0.8 l h-1). They were assessed at ages 10, 20, 30, 40 and 50 days, the variables dry mass of minicuttings, root and total. The water irrigation level 2.19 mm / day-1 (T2) without foliar reduction showed the shortest the rooting time. The treatment without foliar reduction provided the minimizing of rooting time for all irrigation level managements (blades).
Keywords:
vegetative propagation; dry mass; Class A tank
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