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Adaptability and stability analysis methods that use a priori information allow identifying and selecting potentially productive genotypes with greater accuracy. The aim of the current study is to use the Eberhart and Russel’ Bayesian method as an instrument to analyze the adaptability and stability of hybrid maize cultivars and to assess the efficiency of using the distribution of informative and...
The development of resistant cultivars is an alternative to control phytosanitary problems affecting passion fruit crops. This study was conducted to obtain progenies through interspecific crosses between Passiflora edulis × Passiflora mucronata, perform the genetic assessment of the progenies obtained, and evaluate and select genotypes resistant to Fusarium solani. When P. mucronata was used as female...
The combining ability and genetic parameters of maize grown in two different environments of diseases pressure were estimated for partial resistance to northern leaf blight (Exserohilum turcium, NLB) and gray leaf spot (Cercospora spp., GLS). Nine inbred lines were crossed in a complete diallel mating scheme including reciprocals. Two experiments were carried out to test the hybrids using randomised...
Popcorn breeding programs in Brazil have emerged but despite some advances there is still a lack of material performance studies specially regard to seed quality, in different agricultural seasons. This research was carried out to estimate the popcorn combining ability from biparental crosses between eight tropical and one temperate lines in two agricultural seasons (2008 and 2009) with regard to...
In plant breeding, correlations between the statistics of stability and adaptability of popcorn cultivars are not yet well understood. Therefore, the objectives of the present experiment was to investigate the correlations between $$ \sigma_{\rm di}^{2} $$ and $$ \beta_{\rm i} $$ from Eberhart and Russell, ωi from Wricke, $$ {\text{S}}_{\text{i}}^{(1)} $$ , $$ {\text{S}}_{\text{i}}^{(2)}...
The Ward-MLM strategy first proposed by Franco et al. (Crop Sci 38:1688–1696, 1998) is a useful method for analyzing genetic divergence for genealogical comparisons. However, this method has not yet been applied in conjunction with early generation testing (EGT) and single seed descent (SSD) procedures in autogamous plant species bred to advanced generations. In this study, we quantified the diversity...
With the objective of selecting superior recombinant lines of snap bean, four segregating F2 populations were selected by early generation testing and advanced by single seed descent. In a randomized complete block design with two replications within sets 120 F6:7 lines were obtained and evaluated for seven traits of agronomic interest. The mean pod yield of the F6:7 generation was 72% higher than...
With the objective of selecting phosphorus efficient lettuce cultivars adapted to high temperatures, one hundred and thirteen lettuce genotypes from the vegetable germplasm bank at CCTA-UENF, Rio de Janeiro, Brazil, were initially selected for resistance to bolting under greenhouse temperature ranging from 20 to 32 °C. Nineteen greater longevity genotypes were further selected and evaluated for efficiency...
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