Abstract

ABSTRACT: The objective was to estimate the physiological and productive performance of potato genotypes in two organic cultivation systems. Two trials were conducted, being one in a protected and on in an open-field environment. A randomized complete block design with four replicates and five treatments (genotypes ‘Agata’, ‘Atlantic’, ‘BRS Ana’, ‘BRSIPR Bel’ and ‘BRS Clara’) was used. Physiological, productive characteristics and defects associated with tubers were obtained. The protected environment is the most appropriate to produce organic potatoes under the evaluated conditions. Genotypes ‘BRSIPR Bel’ and ‘BRS Ana’ exhibit a high productive potential in organic conditions.

Highlights

  • The worldwide potato production comes mostly from the Northern hemisphere (FAOSTAT, 2021), in open-field conditions

  • Cultivation in protected environment is only recommended to multiply seed tubers in the acclimatization phase, and for pre-basic seed potatoes multiplication (ÇALIŞKAN et al, 2020)

  • Emergence: Plants of all genotypes emerged at 12 days after planting, in both crop environments

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Summary

Introduction

The worldwide potato production comes mostly from the Northern hemisphere (FAOSTAT, 2021), in open-field conditions. Cultivation in protected environment is only recommended to multiply seed tubers in the acclimatization phase, and for pre-basic seed potatoes multiplication (aeroponics) (ÇALIŞKAN et al, 2020). Conventional potato cultivation is a highrisk investment regarding economic viability. A relevant income is only obtained in large areas, with high production volume. In this context, migrating the potato production to a protected environment is unlikely due to the high costs of greenhouses and high investment in each cycle. It may be a good option for organic production

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