Effect of Ascophyllum nodosum on growth and yield of carrot (Daucus carota L.)
DOI:
https://doi.org/10.18779/cyt.v19i2.1250Keywords:
algae, agriculture, biostimulant, sustainabilityAbstract
Carrots (Daucus carota L.) are a very important vegetable in Ecuador. They are mainly grown in the Sierra region, where moderate temperatures, constant humidity, and loose, deep soils favor the development of good-quality roots. On the Ecuadorian coast, carrots are grown less frequently due to higher temperatures, higher relative humidity, and sandy soils, conditions that can limit development and yield. Against these challenges, biostimulants made from Ascophyllum nodosum (L.) seaweed have become a promising alternative for improving crop development and promoting more sustainable agricultural practices. Their application contributes to improving plant nutrition by promoting the assimilation and optimization of the use of nutrients available in the soil. In this regard, the effect of four concentrations of a commercial extract of Ascophyllum nodosum (100, 75, 50, and 25 %) was evaluated on growth and production variables of carrot crops (Chantenay Red core variety) under conditions in the Costa region. A completely randomized block design (CRBD) was used, with six treatments and minimal fertilization. The results showed a positive and significant effect (p<0.001) on plant development and root yield, with the 50 % and 75 % concentrations producing the highest values in the variables evaluated. These results suggest that the A. nodosum-based biostimulant can improve carrot growth and yield under conditions on the Ecuadorian coast and with limited fertilization.
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Copyright (c) 2026 Daniela Alexandra Martinez Vargas, Carlos Andrés Bolaños Carriel, Ana Ruth Álvarez Sánchez, Yordy Ariel Arcos Palma, Alex Darling Bravo Sánchez
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