Study the impact of Trichoderma harzianum filtrate on vitality of some hard wheat seeds, and on their interior associated fungi

Abstract

The aim of this study is to clarify the effect of the treatment with Trichoderma harzianum filtrate on vitality of some hard wheat seeds and on their interior associated fungi. Three samples of hard wheat seeds (Triticum durum Desf) were brought from Oum-elbouaghi (Algeria) silos yields, follower for varieties: Vitron, Waha, and GTA.Seed treatment with Trichoderma harzianum filtrate showed: 1-An increase in the proportion of seed germination in Waha and in GTA with ratios equal to: 0.47% and 05.56% in two cultivars respectively, compared to untreated seeds (controls).Moreover, improvement in growth and strength of seedlings were clearly evident in three treated cultivars compared to untreated seeds (control), where those which their growth was low, and some deformation and anomalies were clearly evident. 2- A strong decrease in the interior associated fungi numbers, with ratios equal to: 74.074%, 79.166%, and 93.75% in: Vitron, GTA, and Waha respectively, compared with untreated seeds (controls)