Radiosensitivitas dan Pengaruh Radiasi Sinar Gamma terhadap Pertumbuhan dan Produksi Tomat (Solanum lycopersicum L.)

*P. P. Insani  -  Departemen Pertanian, Fakultas Peternakan dan Pertanian, Universitas Diponegoro, Indonesia
S. Anwar  -  Departemen Pertanian, Fakultas Peternakan dan Pertanian, Universitas Diponegoro, Indonesia
K. Karno  -  Departemen Pertanian, Fakultas Peternakan dan Pertanian, Universitas Diponegoro, Indonesia

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Abstract

This study aims to determine the radiosensitivity of tomato plants given by gamma ray radiation through the LD50 value, and to examine the effect of gamma ray irradiation dose on the growth and production characteristics of tomato plants. The research was carried out in March – August 2022 at the screenhouse and Laboratory of Physiology and Plant Breeding, Diponegoro University. The irradiation given at the National Nuclear Energy Agency of Indonesia, National Research and Innovation Agency, Jakarta. The study used a completely randomized design (CRD) with a dose of gamma ray radiation as a treatment, namely: (G0) Control, (G1) 125 Gy, (G2) 250 Gy, (G3) 375 Gy, and (G4) 500 Gy and consisted of 5 replicates. The results showed that the LD50 value of tomatoes was 460,23 Gy. Gamma rays had a significant effect on the growth and production characteristics of tomatoes, such as plant height, flowering age, harvest age, number, and weight per plant, but had no effect on stem diameter characters.

Keywords: Irradiation, LD50, Gamma-ray, Tomato
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