INTERAÇÃO GENÓTIPO x AMBIENTE EM MELANCIA NO ESTADO DO RIO GRANDE DO NORTE
2008
José Robson da Silva | Glauber Henrique de Sousa Nunes | Maria Zuleide de Negreiros | Joge Ferreira Torres | Mara Suyane Marques Dantas
The present work aimed to study the environment genotype interaction and estimate the componentssimple and complex of interaction as well as identify watermelon cultivars with phenotypic stability. Seven cultivars of watermelon were evaluated in six environments during the years of 1996, 1997 and 1998 in two location of Rio Grande do Norte State. The trait evaluated was the commercial fruits yield. The interaction Cultivar x Year wasn¿t significant, amount only to 3, 26 % of the total sum of square sum total of the source of variation. There wasn't interaction Cultivar x Location significant, however it explained 11,68 % of the total variation. The triple interaction was significant and explained 13,67 % of the total observed variation. The simple component was responsible for the most part of Cultivar x Environment interaction with about 61% of the total variation. The hybrid Jetstream had the best perfeormance with linear regression coeficient equal to unit, with regression deviation not significant, high coeficient of determination and average yield above the check.
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