The Effects of Trichoderma harzianum on Germination of Onion ( Allium cepa L.) Seeds Under Salt Stress Conditions

Abstract

Although several works have been published on abilities of Trichoderma harzianum strains to reduce the effects of some abiotic stress factors, their effects on salinity conditions have not been explained. This study was conducted to investigate the effects of T. Harzianum T22
Rifai KRL-AG2 on germination of Onion (Allium cepa L.) seeds under salinity conditions which prepared using NaCl. The seeds of ‘Kantartopu-3’ cultivar were treated with different concentrations of T. harzianum strain T22. Seeds of onion were tested at germination
salinity of 0, 2.4, 4.8 and 9.8 dSm-1 in darkness. Germination percentage (%), mean germination time (days), shoot length (mm) and seedling fresh weight (mg) were measured at 12 days after sowing. Treatments of T. Harzianum strain T22 showed different responses to measured
parameters under abiotic stress conditions.