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Chemical Management of Seed Borne Mycoflora of Pigeonpea Seeds and Effect of Different Fungicides on Seed Germination and Seedling Vigour


Affiliations
1 Department of Plant Pathology, N.P.G. College, Barhalganj, Gorakhpur (U.P.), India
     

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A total six systemic and non-systemic fungicides and 2 fungicidal combinations belonging to the different groups in their respective dose were evaluated as dry seed dresser for their efficacy in controlling the pathogens associated with pigeonpea seeds and increasing sees germination and seedling vigour. The fungicides captan eliminated at the fungal species except 3.0 per cent colonies of Fusarium moniliforme and 2.0 colony of Rhizcotonia solani. Indofil- 45 also eliminated several fungal species but the frequency of Fusarium moniliformae and Rhizoctonia solani were recorded 5.0 per cent and 1.0 per cent, respectively. Difoltan was comparatively less effective. Although this fungicides eliminated 6 fungal species but Fusarium moniliformae, Alternaria alternate and Curvularia lunata were observed with the frequencies of 5.0 per cent, 3.0 per cent, respectively. The fungicides Benomyl, carbendazim alone and their combination with Thiram completely eliminated the mycoflora from the seed. Other chemicals were found less effective. Carbendazim in combination with Thiram was found superior to other treatment with regard to seed germination while captan and carbendazim proved superior in better root growth. The shoot growth was found quiteromising when the seed were treated with thiram, Benomyl +Thiram and Carbendazim+ Thiram, indofil M-45 and Captan.

Keywords

Check, Seed Vigour, Germination.
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  • Chemical Management of Seed Borne Mycoflora of Pigeonpea Seeds and Effect of Different Fungicides on Seed Germination and Seedling Vigour

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Authors

S. N. Sharma
Department of Plant Pathology, N.P.G. College, Barhalganj, Gorakhpur (U.P.), India

Abstract


A total six systemic and non-systemic fungicides and 2 fungicidal combinations belonging to the different groups in their respective dose were evaluated as dry seed dresser for their efficacy in controlling the pathogens associated with pigeonpea seeds and increasing sees germination and seedling vigour. The fungicides captan eliminated at the fungal species except 3.0 per cent colonies of Fusarium moniliforme and 2.0 colony of Rhizcotonia solani. Indofil- 45 also eliminated several fungal species but the frequency of Fusarium moniliformae and Rhizoctonia solani were recorded 5.0 per cent and 1.0 per cent, respectively. Difoltan was comparatively less effective. Although this fungicides eliminated 6 fungal species but Fusarium moniliformae, Alternaria alternate and Curvularia lunata were observed with the frequencies of 5.0 per cent, 3.0 per cent, respectively. The fungicides Benomyl, carbendazim alone and their combination with Thiram completely eliminated the mycoflora from the seed. Other chemicals were found less effective. Carbendazim in combination with Thiram was found superior to other treatment with regard to seed germination while captan and carbendazim proved superior in better root growth. The shoot growth was found quiteromising when the seed were treated with thiram, Benomyl +Thiram and Carbendazim+ Thiram, indofil M-45 and Captan.

Keywords


Check, Seed Vigour, Germination.

References