Study of some yield traits relationship in melon (Cucumis melo L) germplasm gene bank of Iran by correlation and factor analysis.

The success of most crop improvement program largely depends on the understanding of relationship among characters and magnitude of this relation help to breeder to determine the selection criteria for breeding program .In order to evaluation of some agronomical characteristics and that relation in 49 melon genotypes of gene bank was studied in randomized complete block design with 3 replications in years 2005-2006 and 2006-2007 in Agriculture and Natural Resources Research Center of sistan-Iran.Combine analysis of variance showed between treatments in aspect of all characters except of number of fruit and plant length there are significant difference .Descriptive statistic results showed the most of coefficient variation belong to yield and yield range of genotypes was between 6101 to 25173 kg/ha .Simple correlation coefficient among characters indicated to significant and positive relation between yield and fruit weight, flesh diameter .Factor analysis showed 4 factors define about 70 percent from variation among characters and finally cluster analysis grouped genotypes to 3 clusters.