Born in Knezha.
Graduated from secondary school in the town of Knezha in 1980 with excellent grades. Holds both Bachelor's and Master's degrees. Completed higher education in 1987 with a degree in Agricultural Engineering – Field Crops, graduating with distinction and awarded a gold medal. Successfully defended a diploma thesis entitled "Quantitative-genetic studies on the inheritance of grain yield, crude protein content and yield in maize."
Languages:

English – satisfactory (completed a six-month English language course in 1989–1990 at the Foreign Language School under the Institute for the Qualification of Personnel – Sofia)

Russian – very good

Defended Dissertation for the Academic Degree "PhD":

Title: Creation and genetic-breeding studies on waxy maize inbred lines homozygous for the waxy gene (wx)
Supervisor: Acad. Nikola Iliev Tomov

Research Interests:

·      Breeding of maize from different maturity groups for grain for feed, food, and industrial processing

·      Use of maize for silage production

Academic Positions (IC-Kneja and others):

·      Associate Professor in Maize Breeding at the Maize Research Institute – Kneja (since 2002)

Leadership and Other Roles (IC-Kneja):

·      Chair of the General Assembly of Scientists (GAS) at IC-Kneja: 2014–2024
In other institutions:

·      Chair of the "Agrobiology" Section at the Union of Scientists in Bulgaria – Vratsa Branch (1998)

Scientific Achievements (Hybrids and Technologies):

Officially Registered Maize Hybrids by Assoc. Prof. Dr. G. Yordanov:

·      Kneja 561 – grain and silage maize hybrid – Patent Certificate Reg. No. 11132 P2 (2017), Sofia

·      Kneja 564 – grain and silage maize hybrid – Patent Certificate Reg. No. 11209 P2 (2020), Sofia

·      Kneja 703wx – amylopectin (waxy) maize hybrid for grain and silage – Patent Certificate Reg. No. 10822 (2009), Sofia

·      Kneja 3su – sweet corn hybrid for human consumption – Patent Certificate Reg. No. 10969 (2011), Sofia

·      Kneja 2su – sweet corn hybrid for human consumption – Patent Certificate Reg. No. 10815 (2008), Sofia

·      Kneja 653 – grain and silage maize hybrid – Plant Variety Certificate Reg. No. 11295 P2 (issued: 25.01.2024)
Patent holder: Maize Research Institute – Kneja, 5835 Kneja, Pleven District, Bulgaria

·      Kneja Sweet 1 – sweet corn hybrid for human consumption – Plant Variety Certificate Reg. No. 11297 P2 (issued: 25.01.2024)

·      Kneja Pop 1 – popcorn hybrid for human consumption – Plant Variety Certificate Reg. No. 11298 P2 (issued: 25.01.2024)

Participation in National and International Projects:

·      ZFTK 33 – Breeding and seed production of high-yielding and stress-tolerant maize hybrids under climate change conditions – a guarantee for sustainable agriculture
Funded by SAA (2023–2026); Project Leader: Assoc. Prof. Dr. Valentina Valkova

·      ZFTK 34 – Creation of new genetic plasma for breeding high-yielding maize hybrids with improved grain quality for technological processing
Funded by SAA (2023–2025); Project Leader: Assoc. Prof. Dr. Mima Ilchovska

·      ZFTK 5 – Breeding, maintenance breeding, and seed production of high-yielding maize hybrids from all maturity groups and usage directions
Funded by SAA (2019–2022); Project Leader: Assoc. Prof. Dr. V. Valkova

·      ZFTK 4 – Studies on heterosis, inheritance of economically important quantitative traits, and methods for the creation, improvement, and identification of new stress-tolerant maize genotypes
Funded by SAA (2019–2021); Project Leader: Assoc. Prof. Dr. P. Valchinkova

Awards and Distinctions:

·      Diploma and medal for sweet corn hybrid Kneja 3su from the Union of Inventors in Bulgaria at ITI’2012 (08–10.11.2012, Sofia)

·      Diploma and medal for Kneja 564 from the Union of Inventors in Bulgaria at AGRA–ITI’2020 (19–23.02.2020, Plovdiv)

·      Diploma for innovation award for popcorn hybrid Kneja Pop 1 at the international agricultural exhibition AGRA 2023 (21–24.02.2023, Plovdiv International Fair)

·      Diploma for innovation award for sweet corn hybrid Kneja Sweet 1 at AGRA 2023 (21–24.02.2023, Plovdiv International Fair)

Key Publications:

·      To date, he has 90 scientific publications, including 80 as sole author and 10 in co-authorship.

·      Yordanov, G. (2023). Study on the Manifestations of Heterosis in Two New, Highly Productive Bulgarian Maize Hybrids – Kneja 561 and Kneja 564. Cob Length and Cob Weight.
Journal of Mountain Agriculture on the Balkans, Vol. 26, Issue 4, pp. 162–179.

·      Yordanov, G. (2023). Influence of the Disease "Late Reddening" of Maize on the Productivity and Grain Quality of Commercial Hybrid Maize Kneja 683A.
Journal of Mountain Agriculture on the Balkans, Vol. 26, Issue 6, pp. 160–178.

·      Yordanov, G. (2019). Self-pollinated maize line 1252 G 05.
Field Crop Studies, Vol. XII(1): pp. 85–92. ISSN: 2535-1133 (Online), 1312-3882 (Print)

·      Yordanov, G. (2019). Ecological trial on the productive capacity of the new high-yielding Bulgarian hybrid Kneja 561 for forage grain under conditions in Romania and Serbia.
Journal of Mountain Agriculture on the Balkans, Vol. 22(3), pp. 123–131
[Research Institute of Mountain Stockbreeding and Agriculture, Troyan; ISSN 2367-8364 (Online), ISSN 1311-0489 (Print)]
https://rimsa.eu/images/forage_production_vol_22-3_2019.pdf