Yayuk Mulyati, Siti Zubaidah, Afifuddin Latif Adiredjo, Mochammad Rofiq, Nurul Jadid, Triono Bagus Saputro, Isnawati, Fitriari I. Muhaimin, Farapti, Gadis Meinar Sari
Salicylic acid treatment induced change in the morphological traits and the content of chlorophylls and endogenous salicylic acid in two rice genotypes. Biodiversitas 26: 778-788. Salicylic acid (SA) plays a crucial role in rice plant resistance. At the same time, the elicitation mechanisms of its induction are not well understood. The exploration of rice's endogenous SA during the vegetative and generative phases in response to SA elicitation is a new area of study. Similarly, the correlation between SA and rice resistance characteristics is a fresh perspective that this research aims to address. The study focuses on the effect of exogenous salicylic acid (SA) elicitation on plant height, the content of chlorophyll a, b and total chlorophyll, endogenous SA, and the number of productive shoots and filled grains) characters in two rice genotypes, namely genotype A (Situbagendit×Cibogo3) and genotype B (Situbagendit×Ciherang8). SA at concentration 0-2.5 mg L⁻¹ was applied to the in vitro shoot culture of the rice varieties. The results showed that genotype B had significant content of chlorophyll a, total chlorophyll, endogenous SA content (generative phase), number of productive shoots, and filled rice grains compared to genotype A. SA concentration of 2 mg L⁻¹ was proven to be the optimal dose that could maximize the resistance and productivity characters of genotype B. Conversely, higher or lower concentrations tended to produce less significant or negative effects. A positive correlation between endogenous SA content and the number of productive shoots was found in genotype B. This study revealed the importance of genetic factors and elicitor concentration in improving rice resistance traits that affect productivity. These findings have practical implications, as they contribute to the development of superior rice cultivars that can support sustainable food security, offering hope for the future of agriculture. © 2025, Society for Indonesian Biodiversity. All rights reserved.
Department of Science Education, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, East Java, Malang, 65145, Indonesia; Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, East Java, Malang, 65145, Indonesia; Department of Agronomy, Faculty of Agriculture, Universitas Brawijaya, Jl. Veteran, East Java, Malang, 65145, Indonesia; Department of Biology, Faculty of Sciences, Institut Teknologi Sepuluh Nopember, Jl. Arif Rahman Hakim, East Java, Surabaya, 60117, Indonesia; Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Surabaya, C3 Lt. 2 Building, Unesa Ket intang Campus, Ketintang Street, East Java, Surabaya, 60231, Indonesia; Department of Nutrition, Faculty of Public Health, Universitas Airlangga, Jl. Ir. Soekarno , East Java, Surabaya, 60115, Indonesia; Department of Physiology and Medical Biochemistry, Faculty of Medicine, Universitas Airlangga, Jl. Mayjen Prof. Dr. Moestopo 47, East Java, Surabaya, 60131, Indonesia
