The heritability study of yield and its components in cassava (Manihot esculenta Crantz)

Article Sidebar

PDF (Español (España))
Published: Jul 5, 2013
Keywords:
cassava, genotypes, heritability, Manihot esculenta

Main Article Content

Lianne Fernández
Instituto de Investigaciones Fundamentales en Agricultura Tropical (INIFAT)

Abstract

Sixteen clones from INIFAT�??s working collection of cassava (Manihot esculenta Crantz) were planted on a typic Red Ferralitic soil in January, 1996. Clones were distributed in a randomized block design with three repetitions, in 5 m-long plots (an area of 22.50 m2). The technical patterns recommended to the crop were used. Two evaluations were performed: one at nine months old and the second one at 12 months, and the following characters were studied: plant height, number of commercial and non commercial roots, commercial and non commercial root weight, stem weight, harvest index, root length and diameter and yield/m2. Yield/m2 was only analysed at harvest (12 months). All data were submitted to a factorial analysis of variance and yield/m2 to a double analysis of variance; Newman-Keuls multiple comparison tests were done. The expected mean square and broad-sense heritability were determined. The genotype had an important effect on the variation of most attributes; it was proved in the factorial analysis of variance, and in the medium to high values that broad-sense heritability has been reached, enabling the improvement of the majority of attributes.

Article Details

How to Cite
Fernández, L. (2013). The heritability study of yield and its components in cassava (Manihot esculenta Crantz). Cultivos Tropicales, 21(2), 37–42. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/745
Issue
Vol. 21 No. 2 (2000)
Section
Original Article

Those authors who have publications with this journal accept the following terms of the License Attribution-NonCommercial 4.0 International (CC BY-NC 4.0):

You are free to:

  • Share — copy and redistribute the material in any medium or format
  • Adapt — remix, transform, and build upon the material

The licensor cannot revoke these freedoms as long as you follow the license terms.

Under the following terms:

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • NonCommercial — You may not use the material for commercial purposes.
  • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

The journal is not responsible for the opinions and concepts expressed in the works, they are the sole responsibility of the authors. The Editor, with the assistance of the Editorial Committee, reserves the right to suggest or request advisable or necessary modifications. They are accepted to publish original scientific papers, research results of interest that have not been published or sent to another journal for the same purpose.

The mention of trademarks of equipment, instruments or specific materials is for identification purposes, and there is no promotional commitment in relation to them, neither by the authors nor by the publisher.