Various Scarification Methods for Reducing of Hard Seed in Cicer Milkvetch (Astragalus cicer)

Authors : Berna Efe, Sabahaddin Ünal
Pages : 13-17
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Publication Date : 2020-12-31
Article Type : Conference Paper
Abstract :Cicer Milkvetch is a legume forage crop having long life- perennial, resistance to cold, non-bloat for animals. The establishment of legume forage crops is very difficult. One of the major constraints in successful stand establishment of forage legumes is hard seed. This trait inhibits and delays the emergence of plant seedling. It leads poor plant growth and low weed competition moreover it causes low yield and poor quality of herbage. For this reason, detecting and knowing of hard seed rates of plant species for sowing rate, uniform emergence and perfect stand establishment are significant. Various methods are used for identifying this rate. In this study, the effects of various scarification methods on hard seed in Cicer Milkvetch were investigated. This test in completely randomized plot design in Lutana variety with four replications was conducted in the department of forage crops and meadow-rangeland in the Central Research Institute for Field Crops in 2018. Treatments are counted following as treatment 1 (heat 1), treatment 2 (heat 2), treatment 3 (freeze-thaw), treatment 4 (mechanical method), treatment 5 (heat 1 + mechanical method), treatment 6 (heat 2 + mechanical method), treatment 7 (freeze-thaw + mechanical method) and treatment 8 (control). When evaluated study results, treatment 3 (57.2%) and treatment 7 (61.6%) negatively affected for seed germination rate and caused a significant decrease in seed germination rate compared to control (81.7%). Other 5 treatments reasoned positively effect on germination seed rate and led an increase in that. The highest germination rate was obtained from treatment 1 (97.0%) and after that treatment 6 (90.0%) was followed it. As a result, mechanical method and heat treatment or combinations of both may be advised to reduce hard seed impact in Cicer Milkvetch.
Keywords : Nohut geveni, sert tohumluk, tohum kabuğu inceltme metotları, çimlenme oranı

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