Selection of stevia elite genotypes aiming at the development of cultivars adapted to the Brazilian Savanna ; Selección de genotipos élite de estevia con el objetivo de desarrollar cultivos adaptados a la Sabana Brasileña

In this work, the objective was to evaluate morphoagronomic traits, correlate and select elite genotypes of Stevia rebaudiana (Bert.) Hemsley with high productivity, and adapted to Brazilian Savanna conditions. A total of 230 genotypes were evaluated, from the Embrapa Cerrados Working Collection, from 2018 to 2019, with 24 evaluations, carried out in six cuts, with each cut representing a certain moment of generation of the response data of the analyzed genotypes. Four traits were analyzed: green biomass production (g), plant height (cm), tillering number and juvenile period of each individual... Mehr ...

Verfasser: Castro, Fellipe Celestino de
Faleiro, Fábio Gelape
Oliveira, Jamile da Silva
Amabile, Renato Fernando
Melo, João Victor Pinheiro
Dokumenttyp: Artikel
Erscheinungsdatum: 2024
Verlag/Hrsg.: Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC
Schlagwörter: Stevia rebaudiana (Bert.) Hemsley / Breeding programs / Correlation / Yield increases / Tillering / Vegetative stage / Plant height / Programa de mejoramiento genético / Correlación / Incremento del rendimiento / Macollamiento / Etapa vegetativa / Altura de la planta
Sprache: Englisch
Permalink: https://search.fid-benelux.de/Record/base-28834437
Datenquelle: BASE; Originalkatalog
Powered By: BASE
Link(s) : https://repositorio.uptc.edu.co/handle/001/17014

In this work, the objective was to evaluate morphoagronomic traits, correlate and select elite genotypes of Stevia rebaudiana (Bert.) Hemsley with high productivity, and adapted to Brazilian Savanna conditions. A total of 230 genotypes were evaluated, from the Embrapa Cerrados Working Collection, from 2018 to 2019, with 24 evaluations, carried out in six cuts, with each cut representing a certain moment of generation of the response data of the analyzed genotypes. Four traits were analyzed: green biomass production (g), plant height (cm), tillering number and juvenile period of each individual. The means of the characteristics of each genotype were correlated according to Pearson's correlation coefficient. The Mulamba and Mock index was applied, with a selection intensity of 10%, to choose the superior genotypes. There are high positive correlations between juvenile period, height and green biomass production. The selected population were 23 superior genotypes, based on the application of rank sum resulting in high selection gains for the traits of interest. Finally, the selection of elite stevia genotypes with high production of green biomass, greater insensitivity to length of the daily light period, as well as taller plants, are essential for the continuity of the stevia breeding program on the Brazilian Savanna. ; En este trabajo, el objetivo fue evaluar las características morfoagronómicas, correlacionar y seleccionar genotipos étilite de Stevia rebaudiana (Bert.) Hemsley con alta productividad y adaptados a las condiciones de la Sabana Brasileña. Se realizaron 24 evaluaciones a 230 genotipos procedentes de la colección de trabajo de Embrapa Cerrados, de 2018 a 2019 en seis cortes, representando cada corte un determinado momento en la generación de datos de respuesta de los genotipos analizados. Se analizaron cuatro características: la producción de biomasa verde (g), la altura de la planta (cm), el número de macollas y el período juvenil de cada individuo. Las medias de las características de cada genotipo ...