EFFECT OF SEED DRESSING CHEMICALS ON EMERGENCE, YIELD AND AGAINST SOIL & SEED BORN DISEASES OF WHEAT

Abstract

Field studies were carried out at Adaptive Research Farm, Sheikhupura Punjab, Pakistan having rice- wheat cropping system to evaluate the efficacy of three different fungicides against seed or soil borne wheat diseases (Root rot, Loose smut & Black Point disease) during two successive seasons 2015-16 & 2016-17.The fungicides were Thiophenate methyl, compound fungicides i.e. Tubeconzol+ imidachloprid and Difenoconazol + cypnoconazol used as seed treatment at the rate of 2.5 g , 4 ml & 1 ml per kg of seed respectively. Incidence of root rot, loose smut & black point disease was recorded by selecting 15 plants, 100 plants & 100 seeds randomly of each treatment from each plot respectively in comparison with untreated control. All the fungicides significantly increased the seedling emergence per square meter about 15 percent as compared to untreated plot. Tubeconzol+ imidachloprid and Difenoconasol +cypnoconazol were the most effective seed dressing fungicide and reduced the number of rotted roots , loose smut infected spikes and black point infested seeds. Maximum number of productive tillers per square meter, healthy grains per spike and yield kg per hectare were recorded with compound fungicide Tubeconzol+ Imidachloprid followed by Difenoconazol + Cypnoconazol treated plots as compared to untreated plot.

Bipolaris sorokiniana-Induced Black Point, Common Root Rot, and Spot Blotch Diseases of Wheat: A Review

“…A study in Pakistan revealed that tebuconazole + imidacloprid and difenoconazole + cyproconazole were the most effective chemicals for the management of black point disease of wheat ( Shahbaz et al., 2018 ). Triazole fungicides (e.g., propiconazole and tebuconazole) inhibit the synthesis of sterols, which are building blocks of the membranes of fungal cells.…”

Transcriptome-Wide Identification and Expression Analysis of Genes Encoding Defense-Related Peptides of Filipendula ulmaria in Response to Bipolaris sorokiniana Infection

“…Biocontrol agents, together with methyl jasmonate or salicylate, were also found to be effective in controlling this disease [43,44]. Management of black point in seeds can be achieved through the use of resistant varieties, fungicides (tebuconazole, imidacloprid, difenoconazole, and cyproconazole), or biocontrol agents [45]. The limitations of all these methods are the same as for the treatment of all fungal infections mentioned above.…”