Vol. 10, Issue 7 (2021)

Author(s):
Sutrishna Bordoloi and Madhumita Choudhury Talukdar

Abstract:
A field experiment was conducted at the Experimental Farm, Department of Horticulture, Assam Agricultural University, Jorhat during the period of 2017-18 to evaluate the growth and flowering attributes of Anthurium under influence of GA3 and bio-fertilizer (Azospirillum). The experiment was laid out in a randomized block design (RBD) with three replications. The treatments were T₁ (19 all, It is a recommended fertilizer and it contains balanced nutrients NPK in a ratio of 19:19:19), T₂ (19 all + Azospirillum), T₃ (19 all + Azospirillum + 100 ppm GA₃), T₄ (19 all + Azospirillum + 150 ppm GA₃), T₅ (19 all + Azospirillum + 200 ppm GA₃), T₆ (19 all + Azospirillum + 250 ppm GA₃),T₇ (19 all + 100 ppm GA₃),T₈ (19 all + 150 ppm GA₃),T₉ (19 all + 200 ppm GA₃),T₁₀ (19 all + 250 ppm GA₃). Data analysis over the period of experiment revealed that the highest plant height (42.78 cm), highest number of leaves (9), highest leaf length (32.26 cm), highest leaf breadth (20.23 cm), highest leaf area (309.37 cm²), highest plant spread (29.23 cm) were found in treatment T₃ which is followed by T_7. Among flower parameters highest number of flower per plant (14.33) was recorded in the treatment T₃. This trend was reflected in spathe length (18.98cm), spathe breadth (13.43cm) and flower stalk length (42.27cm) for T_3. The highest self-life of spathe (52.20 days) and highest vase life of spathe (32.20 days) were recorded in treatment T₃. The study led to the conclusion that maximum growth parameters and flowering attributes of Anthurium could be achieved by application of treatment T₃.