Author(s):
1. Muhammad Ehsan Safdar:
Department of Agronomy, College of Agriculture, University of Sargodha,,Pakistan
2. Mehak Kiran:
Department of Agronomy, College of Agriculture, University of Sargodha,,Pakistan
3. Muhammad Mazhar Iqbal:
Department of Soil and Environmental Sciences, College of Agriculture, University of Sargodha,,Pakistan
Abstract:
Sunflower (Helianthus annuus L.) is moderately drought tolerant crop since water stress reduces its achene yield. Nickel (Ni) is considered a phytotoxic element at its higher concentration while its low concentration has been proved to have beneficial effects on the growth, and physiological water use efficiency of sunflower. Studies were conducted to assess the impact of Ni on growth and yield of sunflower hybrid (ORISUN-648) under drought conditions. Two foliar applications of nickel sulfate (NiSO4) were made at vegetative growth and flowering phases of crop growth at its 0 ppm, 1.5 ppm and 3.0 ppm concentrations under fully irrigated and restricted irrigation regimes. The results revealed that water stress significantly reduced the leaf area index, crop growth rate, head diameter, total dry matter, and achene yield of sunflower crop. But significant improvement occurred in leaf area index, crop growth rate, 1000-achene weight and achene yield of sunflower by foliar application of 3 ppmNiSO4 solution under droughted environment. However, its plant height was not improved by different Ni foliar application treatments suggesting Ni may not have substantial effect on vertical growth of sunflower crop. But, significant improvement (29%) in total dry matter of sunflower by foliar application of Niunder drought conditions suggests its positive role in drought amelioration in sunflower.
Page(s):
138-138
DOI:
DOI not available
Published:
Journal: 1st International Conference on "Recent Advances in Green Biotechnology and Climate Resilience", September 15-16, 2025, Volume: 1, Issue: 1, Year: 2025
Keywords:
drought tolerance
,
Foliar application
,
leaf area index
,
Crop Growth Rate
,
Nickel sulfate
References:
References are not available for this document.
Citations
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