Title: Seed Dressing Fungicides Against Partial Bunt Of Wheat
Authors: Habib Ahmed Khosa,Umer zaib, Abdul Hayee Jamali,Munir Ahmed Rind,Mana khan,Habibullah Kakar
Volume: 8
Issue: 8
Pages: 107-124
Publication Date: 2024/08/28
Abstract:
Disease management is a key component of high-yielding wheat production. Seed treatment fungicides form low cost crop insurance. In order to assess the efficacy of different fungicides as a seed dressing against Partial Bunt of wheat caused by Tilletia indica, an in vivo study was conducted at the experimental field of Agriculture Research Institute Quetta during 2018. In vitro study was carried out to isolate seed borne fungi from wheat grains collected from Tandojam city. In vivo study was comprised of six fungicides treatments (T1 = Vibrax 100, T2 = Thiophenate 540, T3 = Definite, T4 = Protocol, T5 = Success and T6 = Control) which was tested against Partial Bunt of wheat in randomized complete block design with three replication. The results showed that wheat grains cultured on potato dextrose medium indicated colonies of seven fungal genera including Atlernaria, Aspergillus, Fusarium, Rhizopus and Tilletia presenting twelve fungal species. Among them, the Aspergillus flavus was dominant with 18.8%occurrence. The in vivo study revealed that in comparison to control seed dressing with Vibrax 100 and Thiophenate 540 exhibited maximum germination percentage (98.83 and 98.00), less disease incidence (7.96%), less infected spikes and spikelets, 65.23 grains spike-1, tillers m-2 (413.67), biological yield (9114 kg ha-1), grain yield (3851 kg ha-1), seed index (43.03 g) and harvest index (45.18%). However, untreated seed showed maximum number of 197 infected spikes m-2 treatment-1 and 20.67 spikelets spike-1 respectively.