Determining the Effect of Plant Growth Regulators on Growth, Yield and Economics of Brinjal (Solanum melongena L.) | Chapter 01 | Recent Progress in Plant and Soil Research Vol. 5

 During 2014-15, a field experiment was conducted at the Instructional cum Research Farm, Department of Horticulture, Biswanath College of Agriculture, Assam Agricultural University, Sonitpur district of Assam to determine the effect of plant growth regulators on the growth, fruit yield, and economics of brinjal (cv. JC-1). With ten treatments and three replications, the experiment was set up in a Randomized Block Design (RBD). GA3 (25, 50, and 100 ppm), IAA (25, 50, and 100 ppm), and NAA (25, 50, and 100 ppm) were used at varied concentrations (25, 50 and 100 ppm). During the study period, the growth regulators had a substantial impact on the morphological, physiological, and yield-related characteristics of brinjal. The results showed that GA3 treatment at 100 ppm considerably increased morphological features such as plant height (93.70 cm), number of leaves per plant (53.10), and number of branches per plant (6.90). (T3). GA3 at 100 ppm (T3) produced the highest leaf area index (2.82), while GA3 at 50 ppm (T2) produced the highest total dry weight per plant (802.40 g) at harvest. However, treatment with NAA at 50 ppm resulted in the highest leaf chlorophyll content index (44.50). (T8). The GA3 at 50 ppm (T2) treatment resulted in a considerably greater total number of flowers per plant (38.49), number of fruits per plant (18.56), and fruit yield (1.58 kg plant-1 and 377 q ha-1). The T2 (50 ppm GA3) treatment yielded the highest gross return (Rs. 3,01,600 ha-1) and the highest net profit (Rs. 1,95,867 ha-1) with the highest benefit cost ratio of 2.85. As a result, GA3 was found to be the most effective in increasing morphological, physiological, yield attributing, and net benefit in brinjal.

Author(S) Details

Jellan Kropi
Department of Horticulture, Biswanath College of Agriculture, Assam Agricultural University, Biswanath Chariali, 784176, Sonitpur, Assam, India.

Amit Phonglosa
Directorate of Extension Education, Odisha University of Agriculture and Technology, Bhubaneswar, 751003, Odisha, India.

Bhakta Prasad Gautam
Department of Horticulture, Biswanath College of Agriculture, Assam Agricultural University, Biswanath Chariali, 784176, Sonitpur, Assam, India.

Ratna Kinkor Goswami
Department of Crop Physiology, Biswanath College of Agriculture, Assam Agricultural University, Biswanath Chariali, 784176, Sonitpur, Assam, India.

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