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Research Article Open access CC BY 4.0

Effect of Different Plant Growth Regulators on Seed Germination, Seedling Growth and Establishment of Papaya (Carica papaya L.) c.v. Taiwan-7

Abhishek, Samir E. Topno, Annjoe V Joseph

Journal of Advances in Biology & Biotechnology · pp. 795–802 · Published 22 Jun 2024

10.9734/jabb/2024/v27i71038

Abstract

An experiment was conducted at the Department of Horticulture, Sam Higginbottom University of Agriculture, Technology & Sciences, Prayagraj (U.P)-211007, India during year 2023-24. The experiment was laid out in Randomized Design (RBD). There were Ten treatments including control replicated three times in which growing media such as pond soil, vermicompost, and Plant growth regulators mixed in various percentages. The different levels of plant growth regulators Such as GA3, NAA and BA with different compositions in different combinations showed positive responses on the physical quality attributes of the papaya plant. The maximum values of physical quality characteristics of papaya plant like Survival percentage (90.68) number of germination days (10.01), germination percentage (90.01), number of leaves (10.46), plant height (12.76 cm), leaf area (38.4 cm2) and chlorophyll content (52.84), Number of primary roots (10.46), number of secondary roots(27.68) and stem diameter (3.85 cm) were recorded in T3 (GA3 with 150 ppm) and followed by the treatment T6 (NAA with 150 ppm) while, minimum values of these characters maximum value of physical parameter  was recorded in control treatment (T0). From the present investigation it is concluded that treatment (T3) Performed best in terms of growth parameters followed by (T6) and (T9). The maximum B:C ratio (2.02) was also observed in the same treatment i.e. (T3).

Plant growth regulators vermicompost Taiwan-7 GA3 NAA

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