Effect of Different Phosphorous Doses on Growth and Yield of Sunflower (Helianthus Annuus L.)
Year: 2024
Type: article
Abstract: The analysis of variance demonstrated a significant (P<0.05) effect of various phosphorous rates on sunflower. The application was comprised of different phosphorous rates, i.e., P=0 kg ha-1 (control), P=42 kg ha-1 (30% < Recommended), P=48 kg ha-1 (20% < Recommended), P=60 kg ha-1 (recommended), P=72 kg ha-1 (20% > Recommended), and P=78 kg ha-1 (30% > Recommended). Statistical analysis showed that varying phosphorous rates significantly impacted sunflower growth and yield when compared to the control level of 0.00 kg ha-1. The test revealed that adding 78 kg ha-1 (30% more than recommended) of phosphorous resulted in the highest plant height (170.59 ± 1.261a), stem girth cm (8.80 ±0.138a), head diameter (cm) plant-1 (8.80 ±0.138a), seeds head-1 (2013.7 ± 2.292a), seed index (1000-seed weight, g) (62.42 ± 0.223a), highest seed weight head-1 (g), (82.54 ± 1.494a), seed yield (kg ha-1) (2401.7 ± 9.643a), and the oil content % (42.49 ± 0.363a). However, phosphorous 0 kg ha-1 (control) demonstrated the minimum results and was observed with plant height cm 146.67 ±0.950e, stem girth 4.78 ±0.152e cm, head diameter (cm) 30.99 ± 0.633e cm, seeds head-1 (1105.7 ± 0.633e), seed index (1000-seeds weight) (41.55 ± 0.696e), seed weight head-1 (g) (62.06 ± 1.115e), and oil content of (32.96 ± 1.644e). The experiment's results demonstrated that a phosphorous rate of 72 kg/ha (20% more than recommended) was suitable for achieving the maximum sunflower yield, as there were no significant differences when the phosphorous level was increased to 78 kg/ha (30% more than recommended).
Source: TSF journal of biology
Authors: Sadam Hussain Khoso, Ghulam Mustafa Laghari, Asif Ali Kaleri, Aijaz Ali Chachar, Danish Manzoor, Ali Muhammad Chachar, Waqar Ahmed Rajput, Tameer Hyder Shah, Amjad Ali Sodhro, Waqar Mithal Jiskani, Sarang Ali Bhand
Institution: Sindh Agriculture University
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W4407871485