Zea Mays L
Descriptive statistics and correlation analysis of agronomic traits in a maize recombinant inbred line population
Authors: H.M. Zhang, G.Q. Hui, Q. Luo, Y. Sun and X.H. Liu
Maize (Zea mays L.) is one of the most important crops in the world. In this study, 13 agronomic traits of a recombinant inbred line population that was derived from the cross between Mo17 and Huangzao4 were investigated in maize: ear diameter, ear length, ear axis diameter, ear weight, plant height, ear height, days to pollen.. Read More»
- Genet. Mol. Res. 13(1):
- 2014.January.21.14
- DOI:
- 10.4238/2014.January.21.14
Heterotic groups in tropical maize germplasm by test crosses and simple sequence repeat markers
Authors: C.G. Aguiar, I. Schuster, A.T. Amaral J�?ºnior, C.A. Scapim and E.S.N. Vieira
The objectives of the present study were to determine heterotic groups of germplasm lines of tropical maize by test crosses and by simple sequence repeat (SSR) markers and to compare five grouping methods of heterogeneous maize. Sixteen lines of nine populations in the S5 generation were evaluated in test crosses with three testers. The results of four ex.. Read More»
- Genet. Mol. Res. 7(4):
- vol7-4gmr495
- DOI:
- 10.4238/vol7-4gmr495
Tissue culture characteristics of maize (Zea mays L.) haploid coleoptile sections
Authors: L. Jiang, G.X. Jing, X.Y. Li, X.Q. Wang, Z. Xing, P.K. Deng and R.G. Zhao
Doubled haploid (DH) technology, which is used for rapidly purifying genetic resources, is a key technology in modern maize breeding. The present study evaluated the tissue culture characteristics of maize haploid coleoptile sections, in order to provide a new way of haploid doubling. With 20 combinations of haploid coleoptile sections, obtained by hybrid.. Read More»
- Genet. Mol. Res. 14(4):
- 2015
- DOI:
- 10.4238/2015
Genetic control of the number of leaves above the ear in maize
Authors: A.I. Freire, K.O.G. Dias, L.B.V. Oliveira, R.S. Nalin, F.L. Guedes and J.C. Souza
In this study, we examined the genetic control of the number of leaves above the first ear in maize. The F2 generations and the backcrosses were obtained from 2 contrasting lines for this trait. All generations were assessed in a completely randomized block design with 2 replications. The number of leaves above the ear was counted when the plants were in .. Read More»
- Genet. Mol. Res. 14(1):
- 2015.February.13.11
- DOI:
- 10.4238/2015.February.13.11
Genetic analysis of two new quantitative trait loci for ear weight in maize inbred line Huangzao4
Authors: X.-H. Liu, Z.-P. Zheng, Z.-B. Tan, Z. Li and C. He
Ear weight is one of the most important agronomic traits considered necessary in maize (Zea mays L.) breeding projects. To determine its genetic basis, a population consisting of 239 recombinant inbred lines, derived from the cross Mo17 x Huangzao4, was used to detect quantitative trait loci (QTLs) for ear weight under two nit.. Read More»
- Genet. Mol. Res. 9(4):
- vol9-4gmr858
- DOI:
- 10.4238/vol9-4gmr858
Multicollinearity in canonical correlation analysis in maize
Authors: B.M. Alves, A. Cargnelutti Filho and C. Burin
The objective of this study was to evaluate the effects of multicollinearity under two methods of canonical correlation analysis (with and without elimination of variables) in maize (Zea mays L.) crop. Seventy-six maize genotypes were evaluated in three experiments, conducted in a randomized block design with three replication.. Read More»
- Genet. Mol. Res. 16(1):
- gmr16019546
- DOI:
- 10.4238/gmr16019546
Direct effects on scenarios and types of path analyses in corn hybrids
Authors: M. Toebe, A. Cargnelutti Filho, L. Storck and A.D. L�?ºcio
The objective of this study was to estimate the direct effects of explanatory variables on the grain yield of corn in the combinations formed by three types of hybrids x two harvests x nine scenarios of explanatory variables x two types of path analyses. Eleven explanatory variables were measured in 361, 373, and 416 single-, .. Read More»
- Genet. Mol. Res. 16(1):
- gmr16019529
- DOI:
- 10.4238/gmr16019529
Evaluation of progenies from the fifth reciprocal recurrent selection cycle in maize
Authors: N.B. Alves, J.M.V. P�?¡dua, K.O.G. Dias, R.P. Diniz, M.L. Guedes, G.A. Cardoso and J.C. Souza
The objective of this study was to evaluate the performance of 119 full sib progenies of the fifth cycle of reciprocal recurrent selection (RRS) derived from of Universidade Federal de Lavras maize breeding program. The experiment was carried out in an 11 x 11 triple lattice design at two locations (Lavras, Lambari). The plots consisted of two rows of 3 m.. Read More»
- Genet. Mol. Res. 14(3):
- 2015.July.27.11
- DOI:
- 10.4238/2015.July.27.11
Combining ability of tropical maize lines for seed quality and agronomic traits
Authors: L.M. Moterle, A.L. Braccini, C.A. Scapim, R.J.B. Pinto, L.S.A. Gon�?§alves, A.T. do Amaral J�?ºnior and T.R.C. Silva
Studies of genetic effects of early selection of maize based on seed quality traits are rare, especially those that use materials from different heterotic groups. These studies are also useful in tropical environments and for the advancement of sustainable agriculture with cropping during seasons not commonly used for cultivat.. Read More»
- Genet. Mol. Res. 10(3):
- vol10-3gmr1129
- DOI:
- 10.4238/vol10-3gmr1129
Sample sizes to estimate mean values for tassel traits in maize genotypes
Authors: C.A. Wartha, A. Cargnelutti Filho, A.D. L�?ºcio, D.N. Follmann,J.A. Kleinpaul and F.M. Sim�?µes
Tassel traits are important in maize breeding programs aiming to reduce the size and number of branches and maintain satisfactory pollen production in order to increase grain yield. The objectives of this study were to determine the sample size (number of tassels) required to estimate the mean values for tassel traits in maize.. Read More»
- Genet. Mol. Res. 15(4):
- gmr15049151
- DOI:
- 10.4238/gmr15049151