Author: Punyatoya Priyambada, Sashikala Beura and Prem Narayan Jagadev
Anthurium is a slow growing perennial that requires shady, humid conditions as found in tropical forests. The media for growing Anthurium, whether in pot or bed, should be light, well drained and rich in organic matter. The spathe is usually heart-shaped. The flowers are on the spadix above the spathe. The study was plotted according to a Completely Randomized Design (CRD) with Duncan’s Multiple Range Test (DMRT). The experiment was conducted during the year 2018-2019 and 2021-2022 throughout the year under agroshadenet structure of RKVY Project on Anthurium, Dept. of Floriculture and Landscaping, (OUAT), Odisha. The flowering attributes in Anthurium andraeanum cv. Tropical Red also recorded maximum Stalk length (27.33 cm), Stalk circumference (4.92 cm), spathe length (10.52 cm), spathe width (7.4 cm) with application of Zinc oxide nanoparticles@75ppm i.e. treatment (T7). The maximum duration of bloom life i.e. discoloration of spathe on plant of flower (32.22 days) and highest number of flower yield per plant (25.37 nos.) was recorded with dose of ZnO NPs@ 75 ppm in T7 and minimum duration of bloom life of flower (29.43 days) and lowest number of flower yield per plant (19.10 nos.) were recorded under control (T1) during both the years of investigation. It is again observed in respect to spadix characteristics that the Zinc oxide nanoparticles @ 75 ppm used has shown to have maximum spadix length (5.58 cm), spadix diameter (2.82 cm.), days of opening of true flower on spadix (5.23 days), days taken for maturity of true flower (7.32 days), days taken for wilting of true flower (5.20 days) and minimum were recorded in T1 (Control) during both the years of investigation.
Spadix diameter, Bloom life of spathe, Spathe length and Stalk length
The flowering attributes in Anthurium andraeanum cv. Tropical Red also recorded maximum Stalk length (27.33 cm), Stalk circumference (4.92 cm), spathe length (10.52 cm), spathe width (7.4 cm) with application of Zinc oxide nanoparticles@75ppm i.e. treatment (T7) whereas earliness in days to flower opening from day of treatment (35.36 days), days to 1st spathe opening (5.27 days), days to unfurling of spathe from spathe appearance (2.97 days) and days to formation of marketable spathe from the day of unfurling ( 5.13 days) was found to be in the treatment T8 (Zinc oxide nanoparticle @ 100ppm). The maximum duration of bloom life i.e. discoloration of spathe on plant of flower (32.22 days) and highest number of flower yield per plant (25.37 nos.) was recorded with dose of ZnO NPs@ 75 ppm in T7 and minimum duration of bloom life of flower (29.43 days) and lowest number of flower yield per plant (19.10 nos) were recorded under control (T1) during both the years of investigation. It is again observed in respect to spadix characteristics that the Zinc oxide nanoparticles @ 75 ppm used has shown to have maximum spadix length (5.58 cm), spadix diameter (2.82 cm), days of opening of true flower on spadix (5.23 days), days taken for maturity of true flower (7.32 days), days taken for wilting of true flower (5.20 days) and minimum were recorded in T1 (Control) during both the years of investigation.
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Punyatoya Priyambada, Sashikala Beura and Prem Narayan Jagadev (2022). Impact of Micronutrients and Nanoparticles on the Flowering Life of Anthurium andraeanum cv. Tropical Red. Biological Forum – An International Journal, 14(5): 12-18.