M. Vivas
Genetic control and combining ability of agronomic attributes and northern leaf blight-related attributes in popcorn
The present study was conducted to investigate the genetic control and to estimate the general and specific combining abilities of popcorn for agronomic attributes and attributes related to resistance to northern leaf blight (NLB). The 56 hybrids (F1 and reciprocals), together with the eight parent lines and six controls, were evaluated in two harvests, in a randomi.. Read More»
Genet. Mol. Res. 16(3): gmr16039772
DOI: 10.4238/gmr16039772
Genetic diversity of popcorn genotypes using molecular analysis
In this study, we analyzed dominant molecular markers to estimate the genetic divergence of 26 popcorn genotypes and evaluate whether using various dissimilarity coefficients with these dominant markers influences the results of cluster analysis. Fifteen random amplification of polymorphic DNA primers produced 157 amplified fragments, of which 65 were monomorphic and 92 were polymorphic. To cal.. Read More»
Genet. Mol. Res. 14(3): 2015.August.19.16
DOI: 10.4238/2015.August.19.16
Inference of genetic diversity in popcorn S3 progenies
Molecular markers are a useful tool for identification of complementary heterotic groups in breeding programs aimed at the production of superior hybrids, particularly for crops such as popcorn in which heterotic groups are not well-defined. The objective of the present study was to analyze the genetic diversity of 47 genotypes of tropical popcorn to identify possib.. Read More»
Genet. Mol. Res. 15(2): gmr.15028456
DOI: 10.4238/gmr.15028456
Selection index based on the relative importance of traits and possibilities in breeding popcorn
One of the major difficulties faced by popcorn breeders is the negative correlation between popping expansion (PE) and grain yield (GY). It is necessary to overcome this difficulty to obtain promising genotypes. One helpful tool in this process is a selection index because it allows multiple features of interest to be selected. Thus, the present study proposes a new.. Read More»
Genet. Mol. Res. 15(2): gmr.15027719
DOI: 10.4238/gmr.15027719
Efficiency of circulant diallels via mixed models in the selection of papaya genotypes resistant to foliar fungal diseases
Diallel crossing methods provide information regarding the performance of genitors between themselves and their hybrid combinations. However, with a large number of parents, the number of hybrid combinations that can be obtained and evaluated become limited. One option regarding the number of parents involved is the adoption of circulant diallels. However, informati.. Read More»
Genet. Mol. Res. 13(3): 2014.July.2.9
DOI: 10.4238/2014.July.2.9
Multivariate approach in popcorn genotypes using the Ward-MLM strategy: morpho-agronomic analysis and incidence of Fusarium spp
The multivariate analyses are useful tools to estimate the genetic variability between accessions. In the breeding programs, the Ward-Modified Location Model (MLM) multivariate method has been a powerful strategy to quantify variability using quantitative and qualitative variables simultaneously. The present study was proposed in view of the dearth of information ab.. Read More»
Genet. Mol. Res. 16(1): gmr16019528
DOI: 10.4238/gmr16019528
Selecting black-spot resistant papaya genotypes derived from backcrossing and hybrids
Papaya crop is important to Brazilian agribusiness. However, the expansion of papaya cultivation in the country is affected by the absence of commercial cultivars presenting good disease resistance. The black-spot caused by the fungus Asperisporium caricae is the most damaging foliar disease affecting Brazilian papaya crops. The use of genetically resistant cultivar.. Read More»
Genet. Mol. Res. 16(1): gmr16019401
DOI: 10.4238/gmr16019401
Selection of progenies of snap beans using mixed models (REML/BLUP)
The purpose of this research was to select the development of superior genotypes of snap beans adapted to edaphoclimatic conditions of the North and Northwest of Rio de Janeiro State, Brazil, applying the mixed model methodology. The test was installed and carried out in the experimental area of the Instituto Federal Fluminense (IFF), located in the municipality of .. Read More»
Genet. Mol. Res. 17(2): gmr16039914
DOI: 10.4238/gmr16039914
Selecting elephant grass families and progenies to produce bioenergy through mixed models (REML/BLUP)
Brazil has great potential to produce bioenergy since it is located in a tropical region that receives high incidence of solar energy and presents favorable climatic conditions for such purpose. However, the use of bioenergy in the country is below its productivity potential. The aim of the current study was to select full-sib progenies and families of elephant gras.. Read More»
Genet. Mol. Res. 16(2): gmr16029301
DOI: 10.4238/gmr16029301
Prospecting of popcorn hybrids for resistance to fall armyworm
The fall armyworm, Spodoptera frugiperda, is the pest that causes the greatest economic losses for both common corn and popcorn crops, and the use of resistant plant genotypes is an important tool for integrated pest management. The goal of the present study was to evaluate the damage caused by S. frugiperda on single-cross popcorn hybrids under field conditions with natural i.. Read More»
Genet. Mol. Res. 13(3): 2014.August.26.4
DOI: 10.4238/2014.August.26.4
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