Impact of Micronutrients and Plant Growth Regulators on Brinjal (Solanum melongena L.) Growth, Yield and Quality

Sadia Afrin

Department of Horticulture, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Bangladesh.

Nazrul Islam

Department of Horticulture, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Bangladesh.

Sika Mustaki

Department of Horticulture, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Bangladesh.

Tafsin Araf

Department of Horticulture, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Bangladesh.

Shormin Choudhury *

Department of Horticulture, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Bangladesh.

*Author to whom correspondence should be addressed.


Abstract

The present research work conducted to find out the effect of plant growth regulators and micronutrients on growth, yield, and quality of Brinjal (Solanum melongena L.) under open field condition. The experiment was designed in a Randomized Complete Block Design (RCBD) with three replicates. The experiment was conducted on Horticulture farm at Sher-e-Bangla Agricultural University; Dhaka, Bangladesh from July 2022 to June 2023. The experimental treatments included three levels of PGR i.e. No PGR, 200 ppm gibberellic acid (GA3) and 100 ppm Naphthaleneacetic acid (NAA) and three levels of micronutrients i.e.no micronutrients, 200 ppm Boron and 200 ppm Zn. The treatments had a substantial effect on growth, yield, and quality of Brinjal. GA3 treated plants performed better than NAA and no PGR treated plants and Zn produced higher yields and quality than Boron and no micronutrients treated plants in most of the parameters. Considering treatment combination of PGR and micronutrients, plant height, leaf area (471.33 cm2), SPAD value (52.95), number of flowers plant-1 (65.33), number of fruits plant-1 (58.38), yield plant-1  (3312.8g), lipid (0.35%) were observed highest from the treatment combination of 200 ppm GA3 with 200 ppm Zinc whereas dry weight of whole plant (158.80 g), individual fruit weight (67.33g) and  fiber (12.28%) were observed from the treatment combination of 100 ppm NAA with 200 ppm zinc but in case of number of branch (14.00) and Ash (8.44%) were observed  from the treatment of 100 ppm NAA application . Maximum parameter showed lowest value under no treatment combination. This study suggests that foliar application of GA3 with micronutrients such as Zinc during flowering stage of eggplant is the most effective strategy for improving the nutritional quality of Brinjal fruits and increasing crop yields, both of which will help to reduce micronutrient malnutrition and hunger worldwide.

Keywords: Brinjal, Solanum melongena L, plant growth regulators, micronutrients, yield, quality


How to Cite

Afrin, S., Islam , N., Mustaki , S., Araf , T., & Choudhury , S. (2024). Impact of Micronutrients and Plant Growth Regulators on Brinjal (Solanum melongena L.) Growth, Yield and Quality. Asian Journal of Soil Science and Plant Nutrition, 10(2), 72–79. https://doi.org/10.9734/ajsspn/2024/v10i2262

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