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On-line version ISSN 1678-4596
ARAUJO NETO, Sebastião Elviro de et al. Yield and vigor of the yellow passion fruit tree planted in holes and in no-tillage under organic cultivation. Cienc. Rural [online]. 2009, vol.39, n.3, pp. 678-683. Epub Dec 22, 2008. ISSN 1678-4596. http://dx.doi.org/10.1590/S0103-84782008005000106.
The objective of this research was to evaluate the yield and vigor of the yellow passion fruit tree planted in hole and no-tillage under organic system. The experiment was carried under experimental design in randomized blocks with five treatments and four replicates with four plants per plot. Five types of soil tillage: T1- hole of the size of the clod (0.19 x 0.063m) with manuring in covering; T2- hole of 0.30 x 0.30 x 0.30m with manuring addition in the hole; T3 - similar the T2, with manuring in covering; T4 - hole of 0.50 x 0.50 x 0.50m with manuring addition in the hole; and T5 - similar the T4, with manuring in covering were evaluated. The hole size and the no-tillage did not influence the vigor of the plant and root biomass. The number of fruits per plant and the yield in the second crop and in the total of the two crops were larger with holes of 0.30m and no-tillage. After 2 years of planting, the soil bulk density was larger in the depth of 0-5 cm to 20cm of the plant for the planting in holes of 0.50m with manuring addition and smaller for the no-tillage, there was no difference among the other treatments. The no-tillage or traditional system with holes of 0.30 x 0.30 x 0.30m, provided larger passion fruit yield than the traditional systems with holes of 0.50 x 0.50 x 0.50m, not having an influence in the vigor of the plant and the dry mass of roots.
Keywords : Passiflora edulis f. flavicarpa; agroecology; planting system.