Research Notes : India : Environmental impact on different characteristics of soybean
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The leguminous protein and oil rich crop soybean requires specific environrnent for its successful growth and yield. The variation in yield levels and restricted adaptation are mostly due to photoperiodic requirements (Weber and Moorthy, 1952) and probably due to thermal sensitivity (Leng, 1968). The nature and magnitude of variability present in an individual or a population is due to both genetic and nongenetic causes.