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> News > USU Doctoral Student in Agricultural Science, Lentina Sitinjak, Achieves Excellent Results in Open Dissertation Defense

USU Doctoral Student in Agricultural Science, Lentina Sitinjak, Achieves Excellent Results in Open Dissertation Defense

Published At

05 January 2026

Published By

Threesna Sharfina

USU Doctoral Student in Agricultural Science, Lentina Sitinjak, Achieves Excellent Results in Open Dissertation Defense
Thumbnail USU Doctoral Student in Agricultural Science, Lentina Sitinjak, Achieves Excellent Results in Open Dissertation Defense
The Doctoral Program in Agricultural Science at Universitas Sumatera Utara (USU) held an Open Dissertation Defense for Lentina Sitinjak on Monday, 29 December 2025. The examination was conducted in a hybrid format at the IMT-GT Room, USU Rectorate Building, with the candidate achieving an excellent result.

The Doctoral Program in Agricultural Science at Universitas Sumatera Utara (USU) once again conducted an Open Dissertation Defense, which was held in a hybrid format on Monday, 29 December 2025, at the IMT-GT Room, USU Rectorate Building.

 

The Open Defense was undertaken by Lentina Sitinjak (Student ID: 198104005) with a dissertation entitled “Agroecology and the Effect of Asystasia gangetica (L) Infestation on the Growth and Yield of Oil Palm Plants.” The dissertation examines agroecological aspects and the influence of the ground cover plant Asystasia gangetica on the growth performance and productivity of oil palm, which is highly relevant to sustainable plantation management.

 

The examination session was chaired by Prof. Edy Ikhsan, SH, Vice Rector I of USU. The promoter was Prof. Edison Purba, PhD, with co-promoters Dr. Ir. Chairani Hanum, MP, and Prof. Luthfi A. Mahmud Siregar, SP, MSc, PhD. The board of examiners consisted of Prof. Denny Kurniady (Universitas Padjadjaran), Dr. Nini Rahmawaty, SP, MP, and Prof. Dr. Ir. Yaya Hasanah, MS (USU).

The examination, which commenced at 10:00 a.m. (WIB), proceeded smoothly and was marked by rigorous academic discussion. Based on the evaluation of the board of examiners, Lentina Sitinjak was declared to have passed with an excellent result.

 

This achievement is expected to contribute significantly to the advancement of agricultural science, particularly in the application of agroecological principles to sustainable oil palm plantation systems, and to serve as a reference for further research in related fields.

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