TTE156

“EVALUACIÓN DE DOS BIOESTIMULANTES FOLIARES SOBRE EL CRECIMIENTO DE

BROTES E ÍNDICE DE CLOROFILA EN DOS VARIEDADES DE ARÁNDANO ALTO

( Vaccinium corymbosum L.) EN FORMACIÓN”

“ Evaluation of two biostimulants on shoot growth and chlorophyll index in two young field-grown

blueberry ( Vaccinium corymbosum L.) cultivars ”

Simón Enrique Barría Velásquez (1)

(1) Alumno tesista, Universidad católica de Temuco. E-mail: sbarria2017@alu.uct.cl

ABSTRACT

Biostimulants have widely been tested in fruit crops, but there have been lesser tested in young blueberry

orchards. The aim of this study was to evaluate the effect of two foliar biostimulants on the time-course of

shoot growth and chlorophyll index in two young field-grown blueberry cultivars. Natural®WSP and

Aminoterra® were applied individually and in combination on one-year-old Blue Ribbon and Cargo

cultivars in the field and contrasted with a non-applied control. Measurements gave account for the time

course of studied variables. In the second flux of Blue Ribbon shoot growth, applications with

Natural®WSP and Natural®WSP x Aminoterra® showed to be effective for increasing the relative growth

rate (RGR). The RGR in Cargo did not vary by effect of treatment. Similarly to what occurred for RGR,

chlorophyll index in Blue Ribbon increased in response of treatments, late in the season. The chlorophyll

index in cv. Cargo was unaffected by treatment. The effect of treatment seemed differently affect the

tested blueberry cultivars with Blue Ribbon showing changes in the measured variables late in the season.

Variable others than measured here must be evaluated to reach stronger evidence about the effect of

biostimulants used in this study on young blueberry cultivars.

Key words: relative growth rate, chlorophyll index, cultivars, young orchards.

RESUMEN

Los bioestimulantes han sido ampliamente probados en cultivos frutales, pero han sido menos probados en

huertos de arándanos en formación. El objetivo de este estudio fue evaluar el efecto de dos

bioestimulantes foliares sobre el curso temporal del crecimiento de los brotes y el índice de clorofila en

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