Division of Plant Introduction, Indian Agricultural Research Institute, Delhi-12
The adaptability of six exotic varieties of soybean was worked out by testing at 14 environments with an idea to select the best adaptive variety for the northern and central plains of India. A simple and reliable test developed by Finlay and Wilkinson (1963) and Eberhart and Russel (1966) was employed for the purpose. The results indicated that the varieties Bragg and Lee showed their suitability for cultivation for high yielding environments and Punjab 1 and Improved Pelican for low yielding environments for the northern and central plains. The ideal variety capable of being grown in all types of environments needs to be established.