Evaluation the effect of various rootstocks on quantitative and qualitative characteristics in mandarine varieties in Far province.(secound phase.ύ

Citrus cultivation has special role in south of country. With respect to improvement as areas of cultivation these crops, breeding methods is necess8I)' for citrus quality and quantity standard. Researeh indicated that one of the best breeding methods for citrus orchads as improving qualitative and quantitative characters is usage of different rootstocks.. Doing this method has been successful in same cases. In addition, the application of resistant rootstocks control the cold and diseases injury. In order to represent the best compound of rootstocks and scion mandarin varieties with emphasis on qualitative and quantitative characters to introduce for gardeners, an experiment was conducted in factorial with randomized complete block design (RBCD) with 16 treatments at three replications in Darab research station in 1997-2003. The treatments were four varities included Kino ,Clementin,Orlando Tangelo and L~al variety on four different rootstocks which in primary investigation were selected as suitable cases. Each replication included four trees (two paired rows) and totally 192 trees were evaluated. Statistical analysis was carried out by variation analysis method. In these analysis the effects of rootstocks and varieties and their interactions were measured. The vegetative:' indices in rootstocks and varieties and their interactions were compared by Duncan's multiple range test. Durirg the investigation all of .. horticultural practices were the same on treatments. The results of recording conducted analysis of variation " in vegetative phase'indicated that different compound of rootstoks and sion bas signifieant effect (P5%) on some vegatative indices such as crown height and canopy volume. ObservationS conducted in outdoor bed seedling and expected indicated that considerable differences among different rootstocks in the other vegetative indices included that seeds gennination percentage, bud seedling percentage and mean days for germination of seeds