Research Article

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Water stress can affect the yield in tomato crops and, despite this, there are few types of research aiming to select tomato genotypes resistant to the water stress using physiological parameters. This experiment aimed to study the variables that are related to the gas exchanges and the efficiency in water use, in the selection of tomato genotypes tolerant to water stress. It was done in a ... more

M.E.A. Borba; G.M. Maciel; E.F.Fraga Júnior; C.S.Machado Júnior; G.R. Marquez; I.G. Silva; R.S. Almeida
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B.Q.V. Machado; A.P.O. Nogueira; O.T. Hamawaki; G.F. Rezende; G.L. Jorge; I.C. Silveira; L.A. Medeiros; R.L. Hamawaki; C.D.L. Hamawaki
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The recommendation of sugarcane clones depends on several factors, as the response or performance of the clones over different cuts or harvests. The clone by harvest interaction might be difficult to identify superior clones in the final stages of the sugarcane breeding program. Thus, the objective of this study was to investigate and describe the implications of the genotype by harvest ... more

D.N.A. Cabral; J.A.R. Nunes; P.D.S. Cabral; J. Zuchi; A.J. Raizer; T.O.M. De Paula
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Capsicum peppers are native to the Americas, with Brazil being a significant diversity center. Capsicum baccatum accessions at Instituto Federal (IF) Goiano represent a portion of the species genetic resources from central Brazil. We aimed to characterize a C. baccatum working collection comprising 27 accessions and 3 commercial cultivars using morphological traits and molecular markers to ... more

A.L.A. Martinez; J.S.P. Araújo; C.F. Ragassi; G.S.C. Buso; F.J.B. Reifschneider
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environment; Gene-Environment Interaction; Genotype; Plant breeding; Soybeans

Stratification of environments is a strategy to capitalize genotype x environment (GxE) interaction, which can optimize the process of assessment and cultivar recommendation, increasing productivity in a target environmental population. The objective of this study was to assess environmental stratification methods based on the analysis of GxE interaction, to identify consistent agronomic zones ... more

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The present study was carried out in a native Brazil nut tree population (Bertholletia excelsa Bonpl., Lecythidaceae) to assess its genetic diversity and structure. Ten microsatellite markers were used to genotype 198 adult trees (B. excelsa). The population presented high genetic diversity and inbreeding absence rates. The empirical Bayesian method showed three distinct groups in the ... more

J.C. Cabral; A.B. Baldoni; H. Tonini; V.C.R. Azevedo; L.D. Giustina; A.V. Tiago; A.A.B. Rossi
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The objectives of this study were to estimate the stability of dry biomass production of elephant grass genotypes under an annual harvest regime, in soil-climatic conditions of the Northern region of the Rio de Janeiro State, Brazil, and to compare methodologies for stability analyses of Yates and Cochran (YC), Plaisted and Peterson (PP), Annicchiarico (ANN), Lin and Binns (LB), Huenh (HU), ... more

M.S.B. Araújo; R.F. Daher; B.R.S. Menezes; G.A. Gravina; V.B. Silva; A.T.Amaral Júnior; E.V. Rodrigues; B.O. Almeida; N.J. Ponciano
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Anthracnose is among the major diseases of the Capsicum culture. It is caused by different species of the genus Colletotrichum, which may result in major damages to the cultivation of this genus. Studies aiming to search for cultivars resistant to diseases are essential to reduce financial and agricultural losses. The objective of this study was to evaluate the correlation between the ... more

A.C. Maracahipes; J.W.S. Correa; P.E. Teodoro; K.L. Araújo; M.A.A. Barelli; L.G. Neves
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Capsicum; Colletotrichum; Genotype; Plant breeding; Plant Immunity; Selection, Genetic; Selective breeding

Anthracnose is among the major diseases of the Capsicum culture. It is caused by different species of the genus Colletotrichum, which may result in major damages to the cultivation of this genus. Studies aiming to search for cultivars resistant to diseases are essential to reduce financial and agricultural losses. The objective of this study was to evaluate the correlation between the ... more

A.C. Maracahipes; J.W.S. Correa; P.E. Teodoro; K.L. Araújo; M.A.A. Barelli; L.G. Neves

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