Induction of resistance to root rot disease of wheat grown under field condition

Abstract

Four compounds namely Fenor (F-760), Strom, salicylic acid (SA) and thiamin (B 1 ) were tested against root rot disease of wheat under field condition. Wheat grains were soaked in these compounds for 6 h before sowing. Mean disease rating, disease appearance, and distribution of disease were estimated as parameters of disease severity. All tested compounds significantly reduced the root rot of wheat severity during seedling, flowering and ripening stages. Fresh and dry weights were also affected by application of these compounds. Water maintenance capacity in all stages was increased as a result of seed treatments by the above-mentioned compounds. Crop yield and parameters of spikes and grains were significantly improved. These results were discussed and analyzed statistically using LSD test.

Intrinsic Onion Resistance against Bacterial Bulb Rots by Chemical Inducers

“…Application of thiamine hydrochloride (TH) at 1mM in the current study on onion resulted in significant reduction in the bacterial rot diseases throughout storage, the matter which can be explained by the significant increase in the total phenols content and the decrease in the lipid peroxidation and electrolyte leakage in the TH-treated plants comparing with the untreated control plants. These results confirm the successful role of TH in inducing the natural resistance of plant against diseases and agreed with Hashem and Hamada (2002) who used TH for controlling root rot disease of wheat under field condition and found that thiamin significantly reduced the disease severity during seedling, flowering and ripening stage. Also Alhakimi and Alghalibi (2007) used thiamin for controlling broad bean rot disease caused by Fusarium solani and Rhizoctonia solani.…”