DIVERGÊNCIA GENÉTICA E AVALIAÇÃO DE POPULAÇÕES DE MILHO EM DIFERENTES AMBIENTES NO ESTADO DE ALAGOAS
2008
Stênio Lopes Paixão | Marcelo Cavalcante | Paulo Vanderlei Ferreira | José Antônio da Silva Madalena | Rodrigo Gomes Pereira
Three experiments were conducted in the agricultural year of 2007, aiming to estimate the genetic divergence, using the Mahalanobis' generalized distance, and the test of competition of six populations of corn in the municipalities of Arapiraca, Rio Largo and Viçosa, of Alagoas State. The experimental was in the randomized blocks design with seven treatments and four repetitions. There was the formation of two different groups where, it was conclued that is small genetic divergence between the populations of corn. A group was formed by six populations and the other group by the "Asa Branca" variety. The people "Viçosense" and "Rio Largo" were closer genetically (D2 = 1.70), while the longest distance has been detected among the population Alagoano and witness Asa Branca (D2 = 67.27). The average yield of grains ranged from 2,885 kg ha-1 to 3.461 kg ha-1 in the "São Luiz" and "Viçosense" populations, respectively, with overall average of 3,207 kg ha-1, although not statistically differ.
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