Amaral Junior
Water stress adaptation of popcorn roots and association with agronomic traits
Water stress reduces the yield of agricultural crops severely. The objectives of this study were to investigate genotypic differences between 20 popcorn lines in environments under wellirrigated (WW) and water stressed (WS) conditions to determine phenotypic, genetic and environmental relations among agronomic and root traits. The experiment was arranged in a random.. Read More»
Genet. Mol. Res. 17(3): http://dx.doi.org/gmr18078
DOI: http://dx.doi.org/10.4238/gmr18078
Combining ability of S3 progenies for key agronomic traits in popcorn: comparison of testers in top-crosses
The successful development of hybrid cultivars depends on the reliability of estimated combining ability of the parent lines. The objectives of this study were to assess the combining ability of partially inbred S3 families of popcorn derived from the open-pollinated variety UENF 14, via top-crosses with four testers, and to compare the testers for their ability to .. Read More»
Genet. Mol. Res. 15(4): gmr15049319
DOI: 10.4238/gmr15049319
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
Indices estimated using REML/BLUP and introduction of a super-trait for the selection of progenies in popcorn
Selection indices commonly utilize economic weights, which become arbitrary genetic gains. In popcorn, this is even more evident due to the negative correlation between the main characteristics of economic importance - grain yield and popping expansion. As an option in the use of classical biometrics as a selection index, the optimal procedure restricted maximum lik.. Read More»
Genet. Mol. Res. 16(3): gmr16039769
DOI: 10.4238/gmr16039769
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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