Full Length Research Paper
ABSTRACT
Diallel crosses are important to the prediction of the best combinations among different heterotic groups of maize lines. The work objective was to estimate the combining ability among inbred lines from two heterotic groups to predict the best combinations in traits related to tassel and grain yield, conducted in five environments in the southern region. The inbred lines of the two heterotic groups are from the company KSP seeds. The tests were conducted based on crosses with partial diallel, using 15 female parents and male parents 8, 2011/2012 agricultural harvest in five environments in randomized blocks design with three replications. The variables analyzed were tassel length (TL), distance from the last node to the first branch of the tassel (DLN), distance from the flag leaf to the first branch of the tassel (DFL), number of tassel branches (NB), mass thousand grains (MTG) and grains yield (GY). The data were submitted the individual and joint variance analysis, after were realized analyze partial diallel analysis. The additive effects were more important for group II, already to the group I the nonadditive effects were more pronounced, for the traits tassel and of yield. The GCA (group I) of lines inbred 15; 4 and 34 (group II) are favorable for increasing the grains yield. The crosses promising tassel traits been: 13, 24, 33, 44, 73, 83, 93, 103, 104, 114, 124, 143 and 154. The crosses promising increasing of grains yield been: 11, 14, 23, 31, 34, 43, 46, 47, 53, 54, 63, 64, 74, 84, 94, 105, 113, 123, 144, 152, 155 e 158.
Key words: Combinatorial capacity, genic effect, diallel crosses, grain yield.
INTRODUCTION
MATERIALS AND METHODS
RESULTS AND DISCUSSION
CONCLUSIONS
CONFLICT OF INTERESTS
REFERENCES
Andrade JAC, Miranda Filho JB (2008). Quantitative variation in the tropical maize population, ESALQPB1. Scientia Agricola, Piracicaba 65(2):174182. 

Câmara TMM, Bento DAV, Alves GF, Santos MF, Moreira JUV, Júnior CLS (2007). Parâmetros genéticos de caracteres relacionados à tolerância à deficiência hídrica em milho tropical. Bragantia, Campinas 66(4):595603. 

Conab (2015). Companhia Nacional de Abastecimento. Acompanhamento da safra brasileira de grãos.v.2, n.7 – Sétimo Levantemento. Disponível em: View 

Cruz CD (2013). Genes  a software package for analysis in experimental statistics and quantitative genetics. Acta Scientiarum Agron. 35(3):271276. 

Cruz CD, Regazzi AJ, Carneiro PCS (2012). Modelos biométricos aplicados ao melhoramento genético. 4ª ed.Viçosa: UFV. 514 pp. 

Edwards J (2011). Changes in plant morphology in response to recurrent selection in the Iowa Stiff stalk synthetic maize population. Crop Sci. 51(6):23522361. 

Geraldi IO, Miranda Filho JB (1988). Adapted models for the analysis of combining abilty of varieties in partial diallel crosses. Rev. Bras. Genét. 11(2):41930. 

Griffing B (1956). Concept of general and specific combining ability in relation to diallel crossing systems. Aust. J. Biol. Sci. Collingwood 9:463493. 

Hallauer AR, Carena JM, Miranda Filho JB (2010). Quantitative genetics in maize breeding. New York: Springer, 500 pp. 

Jung MS, Vieira EA, Silva GO, Brancker A, Nodari RO (2007). Capacidade de combinação por meio de análise multivariada para caracteres fenotípicos em maracujazeirodoce. Pesqui. Agropecuária Bras. Brasília 42(5):689694. 

Khayatnezhad M, Gholamin R, Somarin SJ, Mahamoodabad RZ (2010). Correlation coefficient analysis between grain yield and its components in corn (Zea mays L.) hybrids. AmEuras J. Agric. Environ. Sci. 9(1):105108. 

Ku LX, Zhao WM, Zhanq J, Wu LC, Wang CL, Wang PA, Zhang WQ, Chen YH (2010). Quantitative trait loci mapping of leaf angle and leaf orientation value in maize (Zea mays L.). Theor. Appl. Genet. 121(5):951959. 

Lopes SJ, Lúcio AD, Storck L, Damo HP, Brum B Santos VJ (2007). Relações de causa e efeito em espigas de milho relacionadas aos tipos de híbridos. Ciência Rural 37(6):15361542. 

Machado JC, Souza JC, Ramalho MAP, Lima JL (2009). Stability of combining ability effects in maize hybrids. Scientia Agricola 66(4):494498. 

Mickelson SM, Stuber CS, Senior L, Kaeppler SM (2002). Quantitative trait loci controlling leaf and tassel traits in a B73 x Mo17 Population of Maize. Crop Sci. 42(6):19021909. 

Neto ALF, MirandaFilho JB (2001). Genetic correlation between traits in the ESALQPB1 maize population divergently selected for tassel size andear height. Sci. Agricola Piracicaba 58(1):119123. 

Neto AR, Nass LL, Miranda Filho JB (1997). Potential of twenty germplasms to improve Brazilian maize architecture. Brazilian J. Genet. Ribeirão Preto 20(4). 

Oliboni R, Faria MV, Neumann M, Resende JTV, Battistelli GM, Tegoni RG, Oliboni DF (2013). Análise dialélica na avaliação do potencial de híbridos de milho para a geração de populaçõesbase para obtenção de linhagens. Semina: Ciências Agrárias, Londrina 34(1):718. 

Paterniani E, Viegas GP (1987). Melhoramento e Produção de Milho. 795p. 

Pinto RJB, Kvitschal MV, Scapim CA, Fracaro M, Bignotto LS, Neto ILS (2007). Análise dialélica parcial de linhagens de milhopipoca. Rev. Bras. de Milho e Sorgo 6(3):325337. 

Rodrigues F, Von Pinho RG, Albuquerque CJB, Faria Filho EM, Goulart JC (2009). Capacidade de combinação entre linhagens de milho visando a produção de milho verde. Bragantia 68(1):7584. 

Sangoi L, Almeida ML, Silva PRPF, Argenta G (2002). Bases morfofisiológicas para maior tolerância dos híbridos modernos de milho a altas densidade de plantas. Bragantia, Campinas 61(2):101110. 

Sangoi L, Guidolin AF, Coimbra JLM, Silva PRF (2006). Resposta de híbridos de milho cultivados em diferentes épocas à população de plantas e ao despendoamento. Ciência Rural, Santa Maria 36(5):13671373. 

Valério IP, Carvalho FIF, Oliveira AC, Lorencetti C, Souza VQ, Silva JAG, Harwing I, Schmidt AM, Bertan I, Ribeiro G (2009). Estabilidade da produção e da capacidade de combinação de diferentes populações de aveia. Semina: Ciências Agrárias, Londrina 30(2):331346. 

Westgate ME, Lizaso J, Batchelor W (2003). Quantitative relationships between pollen shed density and grain yield in maize. Crop Sci. 43:934942. 
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