Document Type : Original Article
Abstract
This experiment was conducted to study the effect of different packages on oil rapeseed varieties produced in Qom province. The studied cultivars were RGS, Talaieh and Okapi and packaging cover types were three andndash;layer paper bag ,4-layer paper bag , propylene bag,propylene+paper and flaxen bag which was studied using factorial experiment on the basis of randomized complete block design in 3 replications. The seed containing bags were stored in the ware house of agricultural and natural resources center of Qom province for 1 year and standard sampling of each treatment and replication was done at the end of the storage period then seeds germination was tested. Also electrical conductivity test ,average time for germination cold test and accelerated aging test have been conducted for estimating seed vigor. The results showed no significant difference between cultivars and cultivars reaction to the exerted treatments was the same, but seeds storage in the various bags had a significant effect on seed vigor as seeds in four layer and three layer paper bags had the most vigor and seeds in propylene bags and paper propylene bag had the least vigour.Also the results showed that various seed storing covers have significant effect on the average time of seeds germination ,electrical conductivity and vigor after cold test and accelerated aging test and in all cases three and four layer paper bags showed the best resulting. However propylene and paper propylene bags had more deteriorating effect on seed quality. Since in the warehouse the temperature had increased up to 45anddeg;c and air relative humidity up to 85% in some months of the year, and with considering that high temperature may accelerate the incidence of some hydraulic reactions and either seed deterioration, so the temperature has more effect on propylene and propylene paper bags.
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