Comparison of evaluation of genetic diversity of Chitty Bean in the field and greenhouse

Legumes، especially common beans are very important. Therefore، genetic diversity evaluations such as field evaluation are essential for breeding but this method has many limitations such as special equipments، crop season and variety of field conditions and money، time and facilities. Thus if we can use the faster and cheaper methods to evaluation، they will more useful than old methods. In this investigation، 40 accessions of chitty beans exist in the Plant Gene Bank of Iran evaluated in field and greenhouse، then used man-whitney’s U test، chi-square test and cluster analysis for comparison of quantitative and qualitative characters that evaluated in each environment. The results showed، seed weight، number of pod، number of seed in each pod، yield of seed، seed coat pattern، seed coat dray color، seed coat bright color and seed shape had the highest genetic diversity، and we cannot use the green house evaluation for replacing field evaluations. But، greenhouse evaluation is a useful method for more qualitative characters and some of quantitative character. Therefore، we can save money and time and increase the accuracy of evaluations.