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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
N. Sri i Hartati
Pusat Penelitian Bioteknologi, Lembaga Ilmu Pengetahuan Indonesia Jl. Raya Bogor Km 46, Cibinong, Bogor 16911, Indonesia
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance

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Pola Akumulasi Prolin dan Poliamin Beberapa Aksesi Tanaman Terung pada Cekaman Kekeringan Siti Kurniawati; Nurul Khumaida; Sintho Wahyuning Ardie; N. Sri i Hartati; Enny Sudarmonowati
Indonesian Journal of Agronomy Vol. 42 No. 2 (2014): Jurnal agronomi indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (426.049 KB) | DOI: 10.24831/jai.v42i2.8432

Abstract

ABSTRACT Drought stress is one of the major limiting factors for plant growth and production. Therefore, the mechanism of drought tolerance is important to be studied. Eggplant (Solanum spp.) is relatively tolerant to drought stress compared to other member of Solanaceae family. The objective of this study was to study the mechanism of drought tolerance in eggplant related to accumulation pattern of proline and polyamines. Seven eggplant accessions were drought stressed for 21 days and rewatered for the following next 7 days. Drought stress treatment significantly decreased the soil water content and reduced plant height of all accessions. Eggplant responded the drought stress by reducing stomatal density and stomatal opening to reduce transpiration rate. Drought stress also induced proline and polyamine (PA) accumulation in the leaf tissues. These accumulations started at 14-days after drought stress period when soil water content less than 20% and reached their peaks at 21 days after drought stress. The highest level of proline (134.70 μmol g-1) and that of putrescine (20.836 ng g-1)  could  be used as indicators for eggplant drought stress condition. Keywords: physiological responses, polyamine (PA), proline, putrescine, stomata
Co-Authors Enny Sudarmonowati Nurul Khumaida Sintho Wahyuning Ardie Siti Kurniawati