A numerical classification of Cajanus cajan (L.) Millsp. accessions based on morphological and agronomic attributes

Abstract

Ninety-five accessions of Cajanus cajan from 11 countries were field-gown and studied throughout a year at Redland Bay, south-east Queensland. By using the MULTCLAS hierarchical program and the Euclidean system according to Burr (1970) the accessions were classified into 15 groups. Thirty-one attributes were used, including plant and leaf morphology, growth, flowering patterns, disease tolerance, and components of seed yield. Hardseededness and an unusual inflorescence formation pattern, not previously reported in pigeon peas, were recorded. Agronomically important attributes and their implications are discussed.