Effect of Foliar Spraying With Zink, Boron and Seaweed Extract on Some Production and Quality Indicators of Pepper (Capsicum annum L.) Fruits

Abstract

A study was conducted in the village of Ain Al-Sharqiyah, Jableh city, in an open agricultural field during the spring season of the 2024. The research aimed to study the response of pepper plants (Capsicum annum L.), variety "Qarn al-Ghazal," to foliar spraying with zinc, boron, and seaweed extract on the yield and qualitative characteristics of the pepper fruits.The experiment included five treatments: (T1 Control, sprayed with tap water only; T2 Zinc at 1 g/L; T3 Boron at 1 g/L; T4 Zinc and Boron together at 0.5 g/L each; T5 Seaweed Extract at 1 g/L),with four replications for each. The experiment was designed using a Complete Randomized Blocks design. The results were statistically analyzed using the GenStat 15, and the variance between the means of the different treatments was determined by calculating the Least Significant Difference (L.S.D.) at a 5% significance level. The plants were sprayed three times with a two-week interval between each spray.The results showed a significant superiority of the foliar spray treatment with seaweed extract in the studied traits over the other treatments, recording (16.92 cm for fruit length, 1.95 cm for fruit diameter, 36.73 g for fruit weight, 9.45% for dry matter percentage, and 145.3 mg/100g for vitamin C content).Meanwhile, the zinc spray treatment outperformed the other treatments in yield per plant (894.6 g) and yield per unit area
 (4.57 kg/m²).