ABSTRACT:
This work evaluated the influence of a no-tillage system on quality and productivity of eggplant following oat (avena strigosa) cultivation. the experiment was carried out in marechal cândido rondon, paraná state, brazil. randomized blocks in factorial 6x2 design was used with four replications. treatments were six eggplant cultivars (nápoli, f 2000, zebrita, redonda rosa, roma and napolitana), and two soil tillage systems (no-tillage on oat straw and conventional tillage with incorporation of straw). oat sowing was held in june 2008, and desiccation occurred 105 days after, dry biomass being evaluated. then, transplanting and conduction of eggplant seedlings were carried out. harvest begun 60 days after transplantation. fruits were classified as "normal", "with slight defects" and "severe defect". regarding fruits, we evaluated diameter, average length, average mass, mass of fruits per plant and yield on all fruit classes. the cvs. nápoli, f 2000 and zebrita were the most productive ones, regardless the cropping system used. the no-tillage system provided a higher productivity for the studied cultivars. on average, plants in this system produced additional 700 g of fruits when compared to the conventional system. moreover, under no-tillage, the number of fruits with severe defect was 2.34% lower than in the conventional system.
Keywords:
Solanum melongena; soil management; yield quality.
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