Peningkatan Pertumbuhan dan Produksi Bawang Merah (Allium Ascalonicum L.) Asal Tss (True Shallot Seed) pada Kondisi Cekaman Kekeringan Melalui Aplikasi Paclobutrazol dan Asam Salisilat

Abstract

Study this aim for know type and dose as well as combination paclobutrazol and sour salicylate on condition stress drought for Upgrade production onion. Research this implemented on House glass in the garden test Faculty Agriculture University North Sumatra Muhammadiyah. design experiments that have used in study this is design random factorial group with 3 factors. Factor first level drought with 2 levels treatment is: 80% and 40% field of capacity. Factor second paclobutrazol with 4 levels treatment namely 0; 15; 30; dan 45 mg/L. Factor third Sour salicylate with 3 levels namely 0; 50; dan 100 mg/L. Observation parameters observed is length plant , number of leaf , leaf area, root lenght, bulb fresh weight, bulb dry weight, bulb diameter, bulb moisture content, stomata density, total chlorophyll, relative leaf moisture content and total quercetin content. Results study show gift factor single paclobutrazol and factor single sour salicylate no increase growth and production onion. Giving paclobutrazol with level 45 mg/L at 80% field of capacity have score long plant and amount leaf highest compared to 40% field of capacity. Giving sour salicylate on concentration 50 mg/L at condition 80% field of capacity increase weight tubers fresh , tuber dry and tuber diameter. Interaction treatment paclobutrazole, acid salicylate and stress drought could increase growth and production on K1S1P3 combination