Variability and correlative interdependence of red clover and italian ryegrass seed quality depending on varieties during the multi-year storage period

Abstract

Seed quality is crucial for achieving the desired number of plants in the mixture, as well as the ratio of grass-legume components. Seeds of red clover and Italian ryegrass can be placed on the market with germination of 70 % and more. In this experiment, the seeds of six varieties of red clover and four varieties of Italian lily were examined. Seeds up to four years of age were tested. Seed quality was examined by monitoring the following parameters: germination energy, amount of hard-dormant seed, total germination and amount of abnormal seedlings. The tested varieties of red clover and Italian ryegrass seeds showed the best quality after one and two years of storage. After four years of storing seeds, out of six tested varieties of red clover, two did not meet the criteria for marketing in Serbia, according to the current rulebook on seed quality. In the case of Italian ryegrass, out of four tested varieties, two did not meet the criteria for placing seeds on the market.

Crvena detelina i italijanski ljulj se često gaje u smeši. Kvalitet semena je od presudnog značaja za ostvarenje željenog brojabiljaka u smeši, kao i odnosa travno-leguminoznih komponenti. Za zasnivanje useva se može koristiti seme različite starosti koje zadovoljava kriterijume kvaliteta za stavljanje u promet. Seme crvene deteline i italijanskog ljulja može se stavljati u promet sa klijavošću od 70 % i više. U ovom eksperimentu, ispitivano je seme različite dužine skladištenja: šest sorti crvene deteline i četiri sorte italijanskog ljulja. Ispitivana su semena starosti do četiri godine. Kvalitet semena je ispitivan praćenjem sledećih parametara: energija klijanja, količina tvrdog-dormantnog semena, ukupna klijavost i broj nenormalnih klijanaca. Ispitivane sorte semena crvene deteline i italijanskog ljulja su pokazale najbolji kvalitet nakon jedne i dve godine čuvanja. Nakon četire godine čuvanja se mena, od šest ispitivanih sorti crvene deteline, dve nisu zadovoljile kriterijume za stavljenje u promet u Srbiji, prema važećem pravilniku o kvalitetu semena. Kod italijanskog ljulja, od četiti ispitivane sorte, dve nisu zadovoljile kriterijume za stavljanje semena u promet