Yield Attributing Traits and Economic Efficacy of Pineapple as Influenced by Plant Growth Regulators and Micronutrients

Author: Bijay Kumar Baidya, Kundan Kishore, Deepa Samant, S.N. Dash, R.K. Panda, Ankita Sahu and Kuldeep K. Shukla

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Abstract

An experiment was conducted to study the influence of growth regulators and micronutrients on yield attributing traits and economic efficacy of pineapple (Ananas comosus L.) cv. MD-2. Challenges faced by pineapple growing farmers are not getting optimum and uniform-sized fruits required for high yield which leads to fetching lesser prices in the market and the fruits are also of no export standards. Therefore, the study was conducted during 2020-21 and 2021-22 to find out the effective concentration of plant growth regulators and micronutrients as well as their combination for obtaining a high yield of pineapple fruits. In the present study, it was observed that the application of growth regulators and micronutrients at the flower initiation stage was found beneficial for increasing the yield of pineapple fruits. While the combined spraying of NAA 200 mg L-1 along with boron 100 mg L-1 and zinc 100 mg L-1 at the flower initiation stage was beneficial for getting higher fruit yield (35.98 ton ha-1) and maximizing the gross return (` 8.16 lakhs ha-1) as well as net return (` 4.57 lakhs ha-1) with a high benefit-cost ratio (2.33) of pineapple cv.MD-2.

Keywords

Plant growth regulators, micronutrients, NAA (naphthalene acetic acid), GA (gibberellic acid), BR (brassinosteroid), boron, zinc, yield, economics, pineapple, MD-2

Conclusion

Based on the finding of the investigation it may be concluded that application with NAA 200 mg L-1 along with boron 100 mg L-1 and zinc 100 mg L-1 at the flower initiation stage is beneficial for getting optimum sized fruits which results in higher fruit yield as well as higher net return with high benefit to cost ratio of pineapple. It is also observed that the application of brassinosteroid showed the lowest benefit-to-cost ratio as the price of brassinosteroid is much higher compared to other plant growth regulators and produced comparatively lesser yield which is not profitable. Hence the application of NAA along with boron and zinc is profitable in pineapple fruit when compared to other treatments.

References

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How to cite this article

Bijay Kumar Baidya, Kundan Kishore, Deepa Samant, S.N. Dash, R.K. Panda, Ankita Sahu and Kuldeep K. Shukla (2023). Yield Attributing Traits and Economic Efficacy of Pineapple as Influenced by Plant Growth Regulators and Micronutrients. Biological Forum – An International Journal, 15(1): 264-267.