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Physiological Responses of Rice (Oryza sativa L. ‘Situ Bagendit’) to Varying Water Stress and Soil Type

  • Diah Rachmawati
  • Fikky Amalia
Conference paper

Abstract

Drought causes decreased growth and induced physiological responses. The objective of this research was to analyze the physiological responses of rice (Oryza sativa L. ‘Situ Bagendit’) to varying water stress and soil texture type. This research used a complete randomized design with two factors: (i) drought stress treatment of 100%, 50% and 25% of field capacity; (ii) soil texture type: clay, clay loam and sandy clay loam. The variables observed were plant heights, number of leaves, relative water content (RWC), plant biomass, chlorophyll and proline levels. Data were analyzed using ANOVA, followed with DMRT analysis (with α = 0.05). This research showed that drought decreased RWC, plant heights, and plant biomass. Drought caused accumulation of proline levels as compatible solute that regulates osmotic balance. Soil media with sandy clay loam texture showed optimal growth based on plant height, number of leaves and shoot biomass. The interaction between drought and soil type showed significant differences in relative water content, total chlorophyll and proline levels.

Keywords

Drought Proline Rice RWC Soil type 

Abbreviation

RWC

Relative Water Content

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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  1. 1.Faculty of BiologyUniversitas Gadjah MadaYogyakartaIndonesia

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