Cluster analysis in tropical maize hybrids and synthetics in Vera cruz, Mexico.
DOI:
https://doi.org/10.15517/am.v9i2.20111Abstract
Information from a maize trial (32 single hybrids, 12 triple hybrids, and one double hybrid) repeated in four locations was analyzed using multivariate cluster ana1ysis (average linkage) and principal components analysis. Results proved that the methods are complementary, and result in basicaIly the same classification of the evaluated genotypes. The clustering general tendency between the germ p1asm under evaluation was due to the similarity of the phenotypical traits measured. The lowest degree of association was due to the relationship of the material studied, because the three superior hybrids had a common parent (H-513), or one parentalline from it. The three best hybrids (TTC-17 x POB43 C6 HC232-2#-1-2, AC8149-2-1-1-3 x H-513, H-513 x POOL23 TSR40-2-3-2) had a higher yield than the experiment's general average (5595 kg/ha), and were al so a littIe earlier (male flowering days and female flowering days) than average, but had a similar plant and ear height. Plants and ears of hybrids 2 of lower yield (T-37 x (LRB-14 x 0-539), 28 (D-471 x V-524- 72-1) y 36 (POB INT DENT 5-1-1-2-HC1 x POB 43 C6 HC232-2#-1-2), were al so characterized as being too high or too short.
Downloads
References
ARIYO, o. 1. 1987. Multivariate analysis and the choice of parents for hybridation in okra (Abelmoschus esculentus (L.) Moench). Theor. Appl. Genet. 74:361-368.
BASFORD, K. E.; KROONENBERG, P. M.; DELACY, I. H. 1991. Three-way methods for multiatribute genotype environment data: An illustrated partial survey. Field Corp Research 27:131-157
CORNELlUS, P. L.; VAN SANFORD, D. A; SEYEDSADR. 1993. Clustering cultivars into groups without rank change interactions. Corp Sci. 33:1193-1200
CARVER, B. E; SMITH, E. L.; ENGLAND JR. H. O. 1987. Regression and cluster analysis of environmental responses
of hybrid and pure line winter wheat cultivars. Crop Sci. 27:659-664.
DAS, P. K.; DASGUPTA, T. 1984. Multivariate analysis n blackgram (Vigna mungo (L.) Hepper). Indian 1. Genet. 44(2):243-247.
GHADERI, A; EVERSON, E. H.; CRESS, C. E. 1980. Classification of environments and genotypes in wheat. Crop Sci. 20:707-710.
JOHNSON, G. R. 1977. Analysis of genotypic similarity in terms of mean yield and stability of environmental response in a set of maize hybrids. Crop Sci.17:837-843.
LlN, C. S.; BINNS, M. R.; LEFKOVITCH, L. P. 1986. Stability
analysis: ¿ Where do we stand? Crop Sci. 26:894-900.
LLAURADÓ, M.; MORENO-GONZÁLEZ, J. 1993. Classification of northern Spanish populations l. Morphological traits. Maydica 38: 15-21.
ORTEGA, P. R.; SÁNCHEZ, G. J. 1989. Aportaciones al estudio de la diversidad de maíz en las partes altas de México. Rev. Fitotec. Mex. 12(2):105-1l9.
PEETERS, J. P.; MARTINELLI, J. A1989. Hierarchical cluster
analysis as a tool to manage variation in germoplasm collections. Theor Appl. Genet. 78:42-48.
RINCÓN-SÁNCHEZ, E 1996. The use of multivariate analysis in developing subsets of a Caribbean collection of maize. pH D Thesis. Lincon, Nebraska University. 85 p.
SMITH, J. S. C. 1984. Genetic variability within U. S. hybrid maize: Multivariate analysis of isozyme data. Crop Sci.
:1041-1046.
YAU, S. K.; ORTIZ-FERRARA, G.; SRIVASTAVA, J. P. 1989. Cluster analysis of bread wheat lines grown in di verse rainfall environments. Rachis 8(2):31-35.
Downloads
Published
How to Cite
Issue
Section
License
1. Proposed policy for open access journals
Authors who publish in this journal accept the following conditions:
a. Authors retain the copyright and assign to the journal the right to the first publication, with the work registered under the attribution, non-commercial and no-derivative license from Creative Commons, which allows third parties to use what has been published as long as they mention the authorship of the work and upon first publication in this journal, the work may not be used for commercial purposes and the publications may not be used to remix, transform or create another work.
b. Authors may enter into additional independent contractual arrangements for the non-exclusive distribution of the version of the article published in this journal (e.g., including it in an institutional repository or publishing it in a book) provided that they clearly indicate that the work was first published in this journal.
c. Authors are permitted and encouraged to publish their work on the Internet (e.g. on institutional or personal pages) before and during the review and publication process, as it may lead to productive exchanges and faster and wider dissemination of published work (see The Effect of Open Access).
