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personal data approved: 2016. I. 29.
Personal data
Lajos Helyes
name Lajos Helyes
year of birth 1956
name of institution
Szent István University, Gödöllő
Doctoral Council of the University (chairman)
doctoral school
SzIE Plant Science Doctoral (PhD) School (Core member)
Council of the Doctoral School (chairman)
SzIE Doctoral School of Biology Sciences (Academic staff member)
the share of work in the different doctoral schools. SzIE Plant Science Doctoral (PhD) School 79%
SzIE Doctoral School of Biology Sciences 21%
accreditation statement submitted to: Szent István University, Gödöllő
HAC accreditation
full compliance
(2014. XII. 12.)
Contact details
E-mail address helyes.lajosmkk.szie.hu
phone number +36 28 522-071
own web page
Academic title
scientific degree, title Ph.D.
year degree was obtained 1996
discipline to which degree belongs plant breeding and botany
institution granting the degree SZENT ISTVÁN EGYETEM (to be translated)
scientific degree, title DSc
year degree was obtained 2008
discipline to which degree belongs plant breeding and botany
institution granting the degree HAS
Employment
1983 - Szent István University, Gödöllő
university professor or researcher
Thesis topic supervisor
number of doctoral students supervised until now 9
number of students who fulfilled course requirements 5
students who obtained their degrees:
Ferenc Lantos PhD 2011  PSDS
(50%) Sára Brandt PhD 2007  DSBS
Zoltán Pék PhD 2005  PSDS

students with degree granting in process:
András Bőcs PhD (2016/08)  PSDS
completed course requirement, without degree or degree granting in process:
Konrád János Deák (PhD) 2015/08  PSDS
(50%) Zsuzsanna Ambrózy (PhD) 2015/08  PSDS
present PhD students:
(50%) Ahmed Bakr Jawdat (PhD) (2018/08)  DSES-SzIE
Sándor Takács (PhD) (2018/08)  PSDS
(50%) Tibor Terbe (PhD) (2018/08)  PSDS
Arnold Koncsek (PhD) (2017/08)  PSDS
Miklós Pék (PhD) (2017/08)  PSDS
Tuan Le Anh (PhD) (2017/08)  PSDS
hiányos adatú hallgatói:
Zsuzsa Nagy PhD (2016/08)  PSDS
András Bőcs PhD ()  PSDS
  Thesis topic proposals
Research
research area Effect of biotic and abiotic factors on nutritional values of vegetable crops (tomato, sweet pepper, onion, eggplant, carrot broccoli, etc.) particularly on antioxidants (lycopene,etc) content
research field in which current research is conducted plant breeding and botany
Publications
2016

Koncsek A, Kruppai L, Helyes L, Bori Z, Daood H G: Storage stability of carotenoids in paprika from conventional, organic and frost-damaged spice red peppers as influenced by illumination and antioxidant supplementation, JOURNAL OF FOOD PROCESSING AND PRESERVATION 40: (3) pp. 453-462.
type of document: Journal paper/Article
language: English
DOI 
2015

Deák K, Szigedi T, Pék Z, Baranowski P, Helyes L: Carotenoid determination in tomato juice using near infrared spectroscopy, INTERNATIONAL AGROPHYSICS 29: (3) pp. 275-282.
type of document: Journal paper/Article
language: English
DOI 
2015

Helyes L, Nagy ZS, Daood H, Pék Z, Lugasi A: The simultaneous effect of heat stress and water supply on total polyphenol content of eggplant, APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH 13: (2) pp. 583-595.
type of document: Journal paper/Article
language: English
DOI 
2015

Nagy Z., Daood H., Ambrózy Z., Helyes L.: Determination of Polyphenols, Capsaicinoids, and Vitamin C in New Hybrids of Chili Peppers, JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2015: Paper 102125. 10 p.
type of document: Journal paper/Article
language: English
DOI 
2014

Daood HG, Palotás G, Palotás G, Somogyi G, Pék Z, Helyes L: Carotenoid and antioxidant content of ground paprika from indoor-cultivated traditional varieties and new hybrids of spice red peppers, FOOD RESEARCH INTERNATIONAL 65: pp. 231-237.
type of document: Journal paper/Article
number of independent citations: 7
language: English
DOI 
2012

Helyes L, Lugasi A, Pék Z: Effect of irrigation on processing tomato yield and antioxidant components., TURKISH JOURNAL OF AGRICULTURE AND FORESTRY 36: (6) pp. 702-709.
type of document: Journal paper/Article
number of independent citations: 11
language: English
DOI 
2011

Pék Z, Szuvandzsiev P, Neményi A, Helyes L, Lugasi A: The Effect of natural light on changes in antioxidant content and color parameters of vine-ripened omato (Solanum lycopersicum L.) fruits., HORTSCIENCE 46: (4) pp. 583-585.
type of document: Journal paper/Article
number of independent citations: 17
language: English
URL 
2006

Brandt S, Pék Z, Barna É, Lugasi A, Helyes L: Lycopene content and colour of ripening tomatoes as affected by environmental conditions, JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 86: (4) pp. 568-572. pp. 568-572.
type of document: Journal paper/Article
number of independent citations: 146
language: English
DOI 
2006

Helyes L, Lugasi A: Formation of certain compounds having technological and nutritional importance in tomato fruits during maturation., ACTA ALIMENTARIA 35: (2) pp. 183-193.
type of document: Journal paper/Article
number of independent citations: 32
language: English
DOI 
2006

Helyes L, Lugasi A, Pék Z: Tomato fruit quality and content depend on stage of maturity., HORTSCIENCE 41: (6) pp. 1400-1401.
type of document: Journal paper/Article
number of independent citations: 39
language: English
Number of independent citations to these publications:252 
Scientometric data
list of publications and citations
number of scientific publications that meet accreditation criteria:
192
number of scientific publications:
248
monographs and professional books:
4
monographs/books in which chapters/sections were contributed:
14 
number of independent citations to scientific publications and creative works:
765
further relevant information regarding accreditation (in Hungarian)
2004-ben sikeresen habilitáltam, 2008-tól az MTA doktora. Tudományos tevékenységem során összesen 277 közleményem jelent meg, amelyből 169 tudományos közlemény, ebből 115 angol nyelvű. Összes hivatkozásaim száma:751, ebből független 698 Hirsch-index 15 (to be translated)

 
All rights reserved © 2007, Hungarian Doctoral Council. Doctoral Council registration number at commissioner for data protection: 02003/0001. Program version: 1.2318 ( 2016. XI. 26. )