Akademik Veri Yönetim Sistemi
Journal of Tekirdag Agricultural Faculty, cilt.18, sa.2, ss.312-321, 2021 (ESCI, Scopus, TRDizin)
The study was carried out to determine the effects of oat grass juice on certain culture plants and weeds seeds germination and seedling growth at the Isparta University of Applied Sciences, Faculty of Agriculture, Field Crops Laboratory in 2020. Barley, wheat, oat, bean, lentils, sugar beet, sunflower, Italian ryegrass, crimson clover and alfalfa seeds as cultivated crops; cockscomb and wild mustard seeds as weed seed were used in the study. The study was established to completely randomized plot design with four replications. As application, oat grass juice and centrifuged oat grass juice doses (25, 50, 75 and 100%) were applied to these seeds. In the research, germination rate, germination index, mean germination time, shoot and root length, and wet and dry weight properties were examined. The germination rates in the experiment were 33.59-90.0% in beans; 0-76.8% in lentils; 0-71.6% in barley; 0-77.9% in wheat; 0-55.6% in oats; 11.5-90.0% in sunflower and 36.2-68.2% in alfalfa. Germination index changed between 1.08-6.62 in beans; 0-16.04 in lentils; 0-13.96 in barley; 0-6.93 in wheat; 0-6.88 in oats; It varied between 0.19-7.31 in sunflower and 2.93-10.28 in crimson clover. Shoot length except for beans, lentil, barley and oat plants, root length were determined for lentil, barley, wheat and oat plants in 25% centrifuged oat grass juice (OGJ) application and control groups. Germination occurred in some species (sunflower and alfalfa) with increasing centrifuged OGJ doses and OGJ applications, but the shoot and root length could not be determined because the seedlings were too small to be measured, and in parallel, their wet and dry weights could not be determined. According to the data obtained, it was determined that oat grass juice application and increasing centrifuged grass juice doses had negative effects on germination and seedling development. Although oat grass juice is rich in mineral substance, vitamins, protein and antioxidant content, it has been determined that it cannot be directly used as a bioactivator in seed germination and seedling development. Many substances with allelopathic effects (saponin (avenacins), hydroxamic acid, scopoletin, L-tryptophan) contained in oat grass juice prevented seed germination.