2019
DOI: 10.14393/bj-v35n5a2019-42259
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Environmental stratification in the brazilian cerrado on the yield and fiber quality of cotton genotypes

Abstract: Environmental stratification studies are important for the plant breeding, since they allow to adequately plan the experimental network. The objective of this work was to identify similar environments for cotton cultivation in the Brazilian Cerrado regarding yield and fiber quality. Nineteen field studies were carried out in a randomized complete block design with twelve genotypes and four replicates. Agronomic (cotton seed yield and fiber percentage) and technological traits (length, micronaire, fiber strengt… Show more

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Cited by 2 publications
(2 citation statements)
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“…Tbio Sinuelo (G27), CD 1550 (G8) and Tbio Toruk (G30) formed polygon of cultivars that present the most productive genotypes. In a study carried out by Cotrim et al (2019), mega-environments are formed according to the proximity of environments, such as characteristics of latitude, altitude, climatic condition, with this, it becomes important to study environmental stratification that help in definition of considerable environments for evaluation, in addition to reduction of places for evaluation of the genotypes by breeding programs.…”
Section: Results and Discusionmentioning
confidence: 99%
“…Tbio Sinuelo (G27), CD 1550 (G8) and Tbio Toruk (G30) formed polygon of cultivars that present the most productive genotypes. In a study carried out by Cotrim et al (2019), mega-environments are formed according to the proximity of environments, such as characteristics of latitude, altitude, climatic condition, with this, it becomes important to study environmental stratification that help in definition of considerable environments for evaluation, in addition to reduction of places for evaluation of the genotypes by breeding programs.…”
Section: Results and Discusionmentioning
confidence: 99%
“…Comparación de los análisis de varianzas combinados del rendimiento algodón -semilla (RENDAS), porcentaje de fibra (POFIB) y rendimiento de fibra (RENDIF), en el Caribe seco (CS) y húmedo (CH) colombiano y la comparación entre zonas productoras. reducir o minimizar el efecto de ambientes y de interacción GxA y b) aumentar el número de ensayos por prueba de evaluación por zona en más de cuatro, para reducir los efectos de ambientes y GxA y se permita, en ambos casos, identificar, seleccionar y recomendar los genotipos superiores en cada sub-zona, con base en su valor genotípico real (Cotrim et al 2019;Kang, 2020). Frente a las posiciones anteriores surge una pregunta adicional: ¿Esto es funcional y viable en los países, como Colombia, ubicados en la zona tropical o subtropical, que se caracterizan, precisamente, por una alta variabilidad edafo-climática impredecible?…”
Section: Resultados Y Discusiónunclassified