1. Preliminary study on chlorophyll content differences in NS sunflower hybrids and their impact on seed yield and oil content
- Author
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Babec, Brankica, Babec, Brankica, Cvejić, Sandra, Ćuk, Nemanja, Krstić, Miloš, Gvozdenac, Sonja, Jocić, Siniša, Radeka, Ilija, Klisurić, Nedjeljko, Miklič, Vladimir, Babec, Brankica, Babec, Brankica, Cvejić, Sandra, Ćuk, Nemanja, Krstić, Miloš, Gvozdenac, Sonja, Jocić, Siniša, Radeka, Ilija, Klisurić, Nedjeljko, and Miklič, Vladimir
- Abstract
Chlorophyll content indicates plant health, photosynthetic efficiency, and nutrient status. High chlorophyll contents often correlate with vigorous growth and higher yields, while changes can signal environmental stresses like drought. During drought, chlorophyll content can decrease, reflecting impaired photosynthesis and nutrient uptake, making it a valuable indicator of drought tolerance. This study examines the variations in chlorophyll content across twenty different NS sunflower hybrids and its correlation with seed yield and oil content. Chlorophyll measurements were conducted at four growth stages, from bud to flowering phases within a month during 2022. Each hybrid exposed unique chlorophyll dynamics, reflecting their genetic diversity and adaptability to varying environmental conditions. Statistical analysis revealed no significant correlations between seed yield and chlorophyll content in any of the four growth stages measured. However, negative correlations between oil and chlorophyll content were obtained at all four growth stages, but statistical significance was obtained at the end of budding (r = – 0,443⃰) and the beginning of the flowering phase (r = -0,433⃰). In conclusion, the lack of significant correlations between tested traits and chlorophyll content suggests that other factors as well as wider variability of sunflower genotypes is essential.
- Published
- 2024