Photosynthetic responses of hydroponically grown basil (<i>Ocimum basilicum</i> L.) to drought and high-EC stress.

ABSTRACT:

Background

Basil (Ocimum basilicum L.), a widely cultivated culinary and medicinal herb in the Lamiaceae family, is particularly vulnerable to various environmental stressors. This study examines how water deficit and elevated nutrient-solution electrical conductivity (EC) affect the photosynthetic efficiency of basil plants grown in an nutrient film technique (NFT) hydroponic system.

Methods

Chlorophyll fluorescence was assessed using both continuous-excitation and modulated pulse-amplitude-modulated (PAM) techniques. Fluorescence parameters were monitored in plants at two developmental stages, immature and mature, under drought and high-electrical-conductivity (EC) stress.

Results

Both stressors altered Photosystem II (PSII)-related fluorescence parame

SUBMITTER: Mirgos M 

PROVIDER: S-EPMC12903902 | biostudies-literature | 2026

REPOSITORIES: biostudies-literature