Effect of Foliar Spraying with Boron and Ascorbic Acid on Growth and Yield Traits of Chili Pepper Grown in Plastic House

This study evaluated the effect of foliar spraying with boron (0, 50, and 100 mg L-1) and ascorbic acid (0, 100, and 200 mg L-1) on the growth and yield of chili pepper plants grown in a plastic house. The treatment spraying boron at a rate of 100 mg L-1 had significantly better results in terms of relative chlorophyll content in leaves, main stem diameter, plant height, branch count, leaf count, fruit count, fruit weight, and plant yield (48.23 Spad, 21.02 mm, 70.02 cm, 4.500 branches, 156.81 leaves, 74.88 fruits, 19.00 g, and 1492.5 g plant-1 respectively). A concentration of 200 mg L-1 ascorbic acid sprayed on plants produced the best results in terms of plant height, number of branches, number of leaves, number of fruits, weight of fruits, and plant yield (21.88 mm, 72.79 cm, 4.878 plant branches, 166.59 leaves, 77.74 fruits, 21.97 g, 1745.7 g plants-1 respectively). The study found that the main stem diameter, plant height, branches number, leaves number, fruits number, fruit weight, and plant yield were all best increased by an interaction treatment consisting of spraying boron at 100 mg L-1 and ascorbic acid at 200 mg L-1. compared with the control group, the values reached 22.47, 74.38 cm, 5,000 branches, 170.76 leaves, 90.46 fruits, 26.38 g, and 2430.4 g plant-1 respectively