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- Title
Zinc sources in enrichment and yield of lettuce cultivars.
- Authors
Pereira de Sousa, Ádila; Pereira Teles, Simone; Borges de Oliveira, Liomar; Magno Queiroz Luz, José; Ribeiro da Silva, Rubens; Rodrigues do Nascimento, Ildon; Pereira de Paula, Carolina; Nascimento Casais, Luana Keslley
- Abstract
Zinc is an important element of plant metabolism, playing roles in several enzymatic reactions. Biofortifying lettuce with Zn is a strategy to meet the demand for this nutrient via food. This work aimed to evaluate the effect of foliar fertilization with different sources of zinc on the agronomic biofortification of special lettuce cultivars under low-altitude tropical conditions. The experiments were carried out in two seasons in a randomized block design, in a factorial scheme (4 x 3) + 1, composed of four lettuce cultivars (SVR 2005®, Romanela®, Crocantela®, and Rubinela®), three sources of Zn (Zn sulfate, Zn oxide, and Zn chelate), and a control without zinc application, with four replications. The following characteristics were evaluated: head diameter (in cm); fresh leaf mass (in g plant-1); head volume (in cm2); yield (in t ha-1), and Zn content (in mg kg-1). The special lettuce cultivars presented head diameters within the commercial requirement. 'Romanela' showed the best results for head diameter, head volume, number of commercial leaves, fresh leaf mass, and yield. The Zn oxide was the best source to biofortify the special lettuces with foliar content of 260 mg kg-1 for 'Rubinela'.
- Subjects
LETTUCE; CULTIVARS; ZINC; FOLIAR feeding; BLOCK designs; TROPICAL conditions; PLANT metabolism
- Publication
Comunicata Scientiae, 2023, Vol 14, p1
- ISSN
2176-9079
- Publication type
Article
- DOI
10.14295/CS.v14.4097