Yield response of autumn planted sunflower hybrids to zinc sulfate application. | [Journal of Agricultural Research • 2014]

Author(s):

1. Sanaullah: Agronomic Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan

2. Mumtaz A. Cheema: Department of Agronomy, University of Agriculture, Faisalabad, Pakistan; Grenfell Campus Memorial University of Newfoundland, Canada

3. M. A. Wahid: Department of Agronomy, University of Agriculture, Faisalabad, Pakistan

4. A. Ghaffar: Agronomic Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan

5. A. Sattar: College of Agriculture, Bahuddin Zakariya University, Bahadur Sub-Campus, Layyah, Pakistan

6. S. Abbas: Agronomic Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan

Abstract:

A field trial was conducted during 2011 to investigate the impact of zinc sulfate (five levels ie. 15, 30, 45, 60, 75 kg/ha) on yield and yield parameters of autumn planted sunflower (Helianthus annuus L.) hybrids at Agronomic Research area University of Agriculture, Faisalabad, Pakistan. The results revealed that maximum stem diameter (3.04 cm) head diameter (18.35 cm), number of achenes per head (1074), achenes yield (2578 kg/ha) and biological yield (12578 kg/ha) were recorded @ 45 kg ZnSO4/ha. The maximum values for 1000 achenes weight (64.62 g) and harvest index (21.11%) were achieved in treatment where zinc sulfate was applied @ 60 kg/ha which was at par with 45 kg ZnSO4. Plant height was non-significant among all the zinc sulfate levels. The sunflower hybrid Hysun-33 produced maximum achene yield (2461 kg/ha) @ 45 kg ZnSO4/ha. Zinc sulfate applied @ 45 kg/ha produced maximum values for all these traits as compared to minimum in control. As far as interaction between zinc levels and hybrids is concerned maximum head diameter (19.57cm), achenes per head (1093), achenes (2645 kg/ha) and biological yields (13019 kg/ha) were given by Hysun-33 @ 45 kg/ha zinc sulphate. It is concluded that zinc sulphate application promoted yield and yield components of sunflower hybrids.

Page(s): 523-533

DOI: DOI not available

Published: Journal: Journal of Agricultural Research, Volume: 52, Issue: 4, Year: 2014

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