Role of Boron in Enhancing Sunflower Yield Components

Abstract

Boron (B) is one of the important elements that are required in small amounts, often referred to as micronutrients. Boron also has a major impact on the growth and various physiological processes in plants which affects the yield and overall growth. This research was aimed at determining the effect of B application on the yield components of sunflower (Helianthus annuus L. 2019) crop. The experiment was carried out at Amir Muhammad Khan Campus, The University of Agriculture, Peshawar, during the kharif season of 2022. The experiment was conducted using a randomized complete block design (RCBD). The four levels of Boron (0, 4, 8, and 12 kg ha⁻¹) were applied in order to assess the effect of Boron on sunflower growth. It was observed that the application of Boron per hectare significantly improved the key yield components such as plant height (153.73 cm), number of leaves (15.64), seed weight (62.12g of seeds), and oil content (44.11%). In addition, the grain yield per hectare also improved (1054kg). Meanwhile, the biological yield was 4371kg. These results are critical in demonstrating the effectiveness of Boron in optimizing sunflower productivity in Mardan's region. This study also emphasizes the need for a better understanding of oilseed crop management practices by examining Boron as a potential nutrient in improving sunflower yields.