Agronomic Performance of Radish Genotypes Under Different Irrigation Depths

Abstract

In radish production, the choice of proper genotypes and irrigation regime is of great importance to achieve success. In light of this, the current study aimed to evaluate the agronomic performance of a few radish genotypes under different irrigation strategies. The plants were grown in the city of Unaí-MG, in Brazil, under field conditions, and during two cycles, one of 40 days (from February 28 to April 8, 2015) and other of 51 days (from May 9 to June 28, 2015). The experimental design was a randomized block design in a split-plot arrangement with four replications. The treatments consisted of four irrigation strategies (50, 75, 100, and 125% of crop evapotranspiration-ETc) applied by a dripping irrigation system, while subplots consisted of three radish cultivars (Comet, Saxa, and Crimson Giant). We evaluated the following parameters: root system depth, leaf chlorophyll content, shoot fresh matter, diameter and length of tuberous root, number, and mass of commercial and non-commercial tuberous roots, and water use efficiency. All the radish genotypes showed no differences for agronomic characteristics. Under Brazilian Cerrado conditions, the most suitable irrigation strategy for radish crops is 100% of ETc.

Use of Carnauba Palm Bagana to Reduce Water Consumption in the Production of Irrigated Radish

“…Alves et al (2017) observed an average evapotranspiration of 1.45 mm day -1 for radish crop. It should be noted that the values observed in this experiment are well above those verified by other authors (ALVES et al, 2017;CUNHA et al, 2019;LACERDA et al, 2017), although it is appropriate to observe that the periods along which these crops were grown had high temperatures.…”

“…However, the sensitivity of this vegetable to water deficit may be a determining factor for the reduction in yield. Studies such as those conducted by Cunha et al (2019) demonstrate the sensitivity of radish crop to variations in irrigation, and, therefore, the importance of reducing this impact.…”

Desenvolvimento inicial da cana-soca sob lâminas de irrigação de salvamento

“…Desta forma, os processos fisiológicos são comprometidos acarretando em perdas na produtividade e qualidade do produto. O estresse hídrico também causa efeito de desidratação das células o que pode acarretar concentração de íons que tornarão tóxicos para o ambiente celular (TAIZ & ZEIGER, 2013;CUNHA et al, 2019). Coelho et al (2018) encontraram que o pico de perfilhamento da cana, em dois anos de avaliação, foi antecipado em 30 dias quando manejada sob irrigação.…”