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Correlation between nitrogen and chlorophyll content in maize (Zea mays L.) leaves

Mihaela Šatvar (UGent) , Marko Petek, Tomislav Karažija, Željko Jukić, Lepomir Čoga, Milan Poljak and Boris Lazarević
(2024) 59th Croatian and 19th International Symposium on Agriculture, Book of Abstracts. In Zbornik sažetaka p.70-70
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Abstract
Physiological examination of nitrogen (N) concentration and the correlation between N and chlorophyll content in the leaves of maize (Zea mays L.) was carried out in two consecutive years at two growth stages of maize. Eight fertilization treatments were applied in four replicates including organic and mineral fertilizers and a control treatment. Leaves were measured by portable chlorophyll meter in the field (Opti-sciences CCM-200) through vegetative stage V4 (four fully developed leaves) and reproductive stage R5 (biomass). Furthermore, leaves were also analyzed in laboratory for N concentration. In addition, the highest correlation coefficient in 2018 was 87.8 % at the V4 stage. At the R5 stage, the correlation coefficient was lower at 57.6 % probably because the weather in June caused hail, which may have partially affected the lower green biomass yield. In 2019, the correlation coefficient was 61.9 % in V4 stage and 87.1 % in R5 stage. As showed, leaf chlorophyll content was positively correlated with leaf nitrogen concentration in both year and during maize growth stages.
Keywords
correlation, nitrogen, chlorophyll, leaf, maize

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MLA
Šatvar, Mihaela, et al. “Correlation between Nitrogen and Chlorophyll Content in Maize (Zea Mays L.) Leaves.” 59th Croatian and 19th International Symposium on Agriculture, Book of Abstracts, University of Zagreb, Faculty of Agriculture, 2024, pp. 70–70.
APA
Šatvar, M., Petek, M., Karažija, T., Jukić, Ž., Čoga, L., Poljak, M., & Lazarević, B. (2024). Correlation between nitrogen and chlorophyll content in maize (Zea mays L.) leaves. 59th Croatian and 19th International Symposium on Agriculture, Book of Abstracts, 70–70. Zagreb, Croatia: University of Zagreb, Faculty of Agriculture.
Chicago author-date
Šatvar, Mihaela, Marko Petek, Tomislav Karažija, Željko Jukić, Lepomir Čoga, Milan Poljak, and Boris Lazarević. 2024. “Correlation between Nitrogen and Chlorophyll Content in Maize (Zea Mays L.) Leaves.” In 59th Croatian and 19th International Symposium on Agriculture, Book of Abstracts, 70–70. Zagreb, Croatia: University of Zagreb, Faculty of Agriculture.
Chicago author-date (all authors)
Šatvar, Mihaela, Marko Petek, Tomislav Karažija, Željko Jukić, Lepomir Čoga, Milan Poljak, and Boris Lazarević. 2024. “Correlation between Nitrogen and Chlorophyll Content in Maize (Zea Mays L.) Leaves.” In 59th Croatian and 19th International Symposium on Agriculture, Book of Abstracts, 70–70. Zagreb, Croatia: University of Zagreb, Faculty of Agriculture.
Vancouver
1.
Šatvar M, Petek M, Karažija T, Jukić Ž, Čoga L, Poljak M, et al. Correlation between nitrogen and chlorophyll content in maize (Zea mays L.) leaves. In: 59th Croatian and 19th International Symposium on Agriculture, Book of Abstracts. Zagreb, Croatia: University of Zagreb, Faculty of Agriculture; 2024. p. 70–70.
IEEE
[1]
M. Šatvar et al., “Correlation between nitrogen and chlorophyll content in maize (Zea mays L.) leaves,” in 59th Croatian and 19th International Symposium on Agriculture, Book of Abstracts, Dubrovnik, Croatia, 2024, pp. 70–70.
@inproceedings{01J6223G35N3HQY68HRMP6RPA1,
  abstract     = {{Physiological examination of nitrogen (N) concentration and the correlation between N and 
chlorophyll content in the leaves of maize (Zea mays L.) was carried out in two consecutive years at 
two growth stages of maize. Eight fertilization treatments were applied in four replicates including 
organic and mineral fertilizers and a control treatment. Leaves were measured by portable chlorophyll 
meter in the field (Opti-sciences CCM-200) through vegetative stage V4 (four fully developed leaves) 
and reproductive stage R5 (biomass). Furthermore, leaves were also analyzed in laboratory for N 
concentration. In addition, the highest correlation coefficient in 2018 was 87.8 % at the V4 stage. At 
the R5 stage, the correlation coefficient was lower at 57.6 % probably because the weather in June 
caused hail, which may have partially affected the lower green biomass yield. In 2019, the correlation 
coefficient was 61.9 % in V4 stage and 87.1 % in R5 stage. As showed, leaf chlorophyll content was 
positively correlated with leaf nitrogen concentration in both year and during maize growth stages.}},
  author       = {{Šatvar, Mihaela and Petek, Marko and Karažija, Tomislav and Jukić, Željko and Čoga, Lepomir and Poljak, Milan and Lazarević, Boris}},
  booktitle    = {{59th Croatian and 19th International Symposium on Agriculture, Book of Abstracts}},
  issn         = {{2459-5551}},
  keywords     = {{correlation,nitrogen,chlorophyll,leaf,maize}},
  language     = {{eng}},
  location     = {{Dubrovnik, Croatia}},
  pages        = {{70--70}},
  publisher    = {{University of Zagreb, Faculty of Agriculture}},
  title        = {{Correlation between nitrogen and chlorophyll content in maize (Zea mays L.) leaves}},
  url          = {{https://sa.agr.hr}},
  year         = {{2024}},
}