Abstract
There is a large number of soybean cultivars recommended to the many regions that soybean is cultivated and, even though these cultivars hold a high potential yield, the environmental variation can alter the expected yield due to the genetic x environment interaction. So, the aim of this study was to evaluate the adaptability and stability of ten soybean cultivars in five environments, sowed in different times, in Palotina-PR. The randomized block design was used with three repetitions. The study was conducted in the 2013/14 and 2014/15 harvests. The Eberhart & Russel (1966) and MHPRVG (Resende 2004) methods were used to evaluate the yield adaptability and stability. Based on the results of either methods, the cultivars TMG 7060 RR, TMG 7062 IPRO and NA 5909 RG showed wide adaptability and high stability to this cultivation area.
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