Naslov
Physiological Responses of Basil (Ocimum Basilicum L.) Cultivars to Rhizophagus Irregularis Inoculation under Low Phosphorus Availability

Autori
Lazarević, Boris ; Carović-Stanko, Klaudija ; Šatović, Zlatko

Izvornik
Plants (2223-7747) 9 (2020), 1; 14, 14

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
basil ; chlorophyll fluorescence ; gas exchange ; mycorrhizal responsiveness ; phosphorus nutrition ; root morphology

Sažetak
Arbuscular mycorrhizas (AM) can improve phosphorus (P) nutrition and could serve as environmentally friendly approach for sustainable crop production under P limiting conditions. Objectives of this study were to assess the effect of AM on different physiological traits and to quantify the responsiveness of different basil (Ocimum basilicum L.) cultivars to AM under low P availability. Basil cultivars, ‘Genovese’, ‘Sweet Basil’, ‘Dark Opal’, and ‘Erevanskii’, were inoculated (AMI) using Rhizophagus irregularis. Photochemical efficiency and gas exchange were measured, on AMI and non-inoculated (AMC) plants, and at harvest shoot biomass, shoot P concentration, root morphological traits, frequency of mycorrhizas in root (F%), and extent of root colonization (M%) were determined. Significant differences in F% and M% were found among examined cultivars, with highest found in ‘Dark Opal‘ and lowest in ‘Erevanskii‘. AMI reduced shoot biomass and increased shoot P concentration as well as examined root traits in ‘Genovese’ and ‘Erevanskii’, whereas did not affect those traits in ‘Dark Opal’ and ‘Sweet Basil’, indicating differences in responsiveness to AM. AMI positively affected gas exchange parameters in all examined cultivars probably due to increased sink capacity of bigger root system and/or AM structures within roots.

Izvorni jezik
Engleski

Znanstvena područja
Biologija, Poljoprivreda (agronomija)

POVEZANOST RADA