The Effect of Different Stratification Media and Temperature Applications on Seed Germination and Seedling Growing in Rosehip (Rosa canina L.)

Abstract

In this study, the effects of different stratification media (sand, peat, vermiculite and vermicompost) and different temperature degrees (warm + cold) on the germination rate and seedling growth of rosehip seeds were investigated. This study was carried out in the laboratory and greenhouses of Kırşehir Ahi Evran University Faculty of Agriculture, Department of Horticulture, by investigating the germination of seeds in 2020, which were stratificated for 28 weeks in 2019. Rosehip seeds were stratificated in sand, peat, vermiculite and vermicompost for 14 weeks at 22oC + cold stratification at 4 oC for 14 weeks, and at the end of the folding period, the seeds were seeded in viols in the greenhouse. There was no emergence in peat and vermicompost, and the emergence rates in sand and vermiculite were 2.5 % and 11.75 %, respectively. When the emerging seedlings reached a size of 5 cm, they were taken into pots. At the end of the vegetation period, in rosehip seedlings, different morphological characteristics were determined including crown size, root collar diameter, stem number, stem length and diameter, shoot number, shoot length and diameter, root length, root dry and wet weight, stem dry and wet weight. At the end of the study, it was concluded that 14-week warm stratification + 14-week cold stratification was insufficient in rosehip (Rosa canina L.) seeds, therefore, only the stratification and temperature were not sufficient for both short-term stratification and long-term stratification.

Keywords

• stratification
• pretreatment
• rosa spp.