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K. SURESH KUMAR*, R. CHANDRA SHEKAR AND D. RAJANI
Subject Matter Specialist (Hort), KVK, Madanapuram, PJTSAU, Telangana
Effect of chemicals on corm and cormel production in gladiolus cvs. American Beauty and White Prosperity were studied in herbal garden at College of Horticulture, Rajendranagar, Hyderabad. The chemicals, Potassium nitrate (KNO3) at 0.5, 1.0 and 1.5 per cent, Salicylic acid (SA) at 50, 100 and 150 ppm, Propyl gallate (PG) at 0.5, 1.0 and 1.5 per cent were used on two cultivars. The corms were dipped in the solutions for a period of 10 hours before planting. Cultivar American beauty treated with Potassium nitrate at 1.5 per cent recorded highest number of replacement corms per corm (1.45), however with Salicylic acid at 150 ppm it recorded maximum number of cormels per corm (4.72). Among the chemical treatments, Salicylic acid at 150 ppm recorded maximum corm size (4.41 cm), corm weight (21.56 g), cormel weight per corm (6.59 g) and highest propagation co-efficient (184.72) with cv. White Prosperity followed by cv. American Beauty.
American Beauty, White Prosperity, Potassium nitrate (KNO3), Salicylic acid (SA) and Propyl gallate (PG)