Effect of plant growth regulators and micronutrients on physical attributes of pineapple (Ananas comosus L.) under shade net condition

Abstract

The present experiment entitled “Effect of plant growth regulators and micronutrients on yield and quality attributes of pineapple (Ananas comosus L.) under shade net condition” was conducted during the year 2024-25 at Precision Farming Development Centre (PFDC), Department of Fruit Science, CoA, Indira Gandhi Krishi Vishwavidyalaya, Raipur, Chhattisgarh. The experiment was laid out in Completely Randomized Design (CRD), which consisted of twelve treatments and replicated thrice. The application of NAA 100 ppm + Boron 100 ppm + Zinc 100 ppm (T11) significantly enhanced several physical parameters. It resulted in maximum fruit length (28.48 cm), fruit girth (32.63 cm), fruit weight (804.34 g) and earliest flowering (32.33 days). But maximum D-leaf length (58.17 cm) found in GA₃ 100 ppm + Boron 100 ppm + Zinc 100 (T7).