Resumo

PARDO-PLAZA, YURI-JANIO;; CANTERO-GUEVARA, MIRIAM-ELENA;  e  CARDONA, CRISTIAN-ANTONIO; MIRANDA-. (Manihot esculenta Crantz) variety MCol 2066. Rev.Bio.Agro [online]. 2023, vol.21, n.1, pp.62-72.  Epub 01-Jul-2023. ISSN 1692-3561.  https://doi.org/10.18684/rbsaa.v21.n1.2023.1935.

Cassava (Manihot esculenta Crantz) is one of the main foods used as an energy source that is also as one of the staples feeding more than 800 million people worldwide. In some countries as well as some Colombian areas known for their cassava production, there has been a decrease in their production growth due to the fact that there is neither enough technology nor knowledge to contribute to the current demand for cassava. The objective of this study was to evaluate the effect of 1-naphthaleneacetic acid on some yield-related variables on variety MCol 2066 of cassava (chirosa). A homogeneous crop of cassava was established and cuttings of 15 cm in length were obtained, which in turn were subjected to three immersion times (5, 10 and 20 min) in four concentrations of 1-naphthaleneacetic acid (0, 100, 200 and 300 ppm). Data were collected 240 days after planting. The evaluated variables which were percentage of starch, dry matter, and fresh root mass, showed significant differences between treatments. The highest values were observed in the treatment at 20 min immersion in 200 ppm of 1-naphthaleneacetic acid for the variables, starch (45,56 %), dry matter (51,6 %), and fresh mass (73.270 kg/ha). Under the conditions of the study, this treatment was the best inducer to increase the yield of the crop, because it influenced positively on such results, showing better results in the variables percentage of starch, dry matter and fresh mass of the root, which could be favorable to improve the yield of the crop of variety MCol 2066 cassava (chirosa) in the region.

Palavras-chave : Root; Dry matter; Starch; Auxin; Yield; Cassava; 1-naphthalene acetic acid; Manihot esculenta; Fresh mass; Cutting.

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