Impact of Different Growth Regulators and Micronutrients on Flowering and Yield Attributing Parameters of Tomato (Solanum lycopersicum L.) cv. Kalinga Tomato-121

Author: Himasweta Nayak, Sunil Kumar Dash, Gouri Shankar Sahu, Pradyumna Tripathy, Simanta Mohanty and Swarnalata Das

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Abstract

Tomato is one of the widely consumed vegetable all over the world and increased production is an essential prerequisite for its economic success. Growth regulators and micronutrients have superior results in many vegetables. For the increased production of tomato it is essential to know the application method and proper dose of growth regulators and micronutrients; to learn the proper techniques the following study was executed. The current study was carried out during 2019 rabi season at the Department of Vegetable Science, Odisha University of Agriculture and Technology (OUAT), Bhubaneswar, to determine the impact of plant growth regulators and micronutrients on flowering and yield attributing parameters of tomato cultivar ‘Kalinga tomato-121’. The experiment was laid out in Randomized Block Design having twelve treatments and three replications. Treatments consist of different plant growth regulators and micronutrients i.e. T1: Borax @ 0.2%, T2: Zinc sulphate @ 0.5%, T3: Micronutrient mixture @ 0.5% (Multiplex Multimax), T4: NAA 50 ppm, T5: NAA 50 ppm + Borax @ 0.2%, T6: NAA 50 ppm + Zinc sulphate @ 0.5%, T7: NAA 50 ppm + Micronutrient mixture @ 0.5% (Multiplex Multimax), T8: GA3 50 ppm, T9: GA3 50 ppm + Borax @ 0.2%, T10: GA3 50 ppm + Zinc sulphate @ 0.5%, T11: GA3 50 ppm + Micronutrient mixture @ 0.5% (Multiplex Multimax), T12: Control (without growth regulators and chemicals). According to the observations recorded, the minimum days taken for 1st flower initiation (24.16 days), number of flowers per cluster (7.75), number of flowers per plant (75.18), number of seeds per fruit (277.89), polar diameter (4.77 cm) and equatorial diameter (6.33 cm) were found in treatment T11- GA3 50 ppm + Micronutrient mixture @ 0.5% (Multiplex Multimax) and the minimum for all the parameters were found in control. Based on the results of the experiment it can be concluded that use of GA3 50 ppm + Micronutrient mixture @ 0.5% (Multiplex Multimax) is best for increase tomato production and productivity during rabi season in Odisha condition.

Keywords

Tomato, Growth regulators, Micronutrients, NAA, GA3, Borax, Zinc sulphate

Conclusion

On the basis of obtained results, it can be concluded that GA3 50 ppm + Micronutrient mixture @ 0.5% (Multiplex Multimax) considerably influenced the flowering and yield attributing parameters of tomato. Among the various treatment combinations of plant growth regulators and micronutrients applied on plants, because the tomato plants sprayed with GA3 50 ppm + Micronutrient mixture @ 0.5% (Multiplex Multimax) exhibited most positive result in all the parameters relating to days to 1st flower initiation, number of flowers per cluster, number of flowers per plant, number of seeds per fruit, polar diameter and equatorial diameter. From the above experiment it can be concluded that use of GA3 50 ppm + Micronutrient mixture @ 0.5% (Multiplex Multimax) is best for increase tomato production during rabi season in Odisha condition by increasing qualitative, vegetative and procreative growth & reducing flower/fruit drops. It can ultimately led to increased growth of plant which helps farmers to increase their profit.

References

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How to cite this article

Himasweta Nayak, Sunil Kumar Dash, Gouri Shankar Sahu, Pradyumna Tripathy, Simanta Mohanty and Swarnalata Das (2022). Impact of Different Growth Regulators and Micronutrients on Flowering and Yield Attributing Parameters of Tomato (Solanum lycopersicum L.) cv. Kalinga Tomato-121. Biological Forum – An International Journal, 14(4): 1389-1392.