MYCOPATH, Vol 1, No 2 (2003)

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Effect of seed-borne fungi on seed quality components of different wheat varieties and their response to fungicide seed treatment

M.A. Pathan, M.M. Jiskani and K.H. Wagan

Abstract


Five different species of seed-borne fungi, i.e., Alternaria alternata, Aspergillus niger, Fusarium moniliforme, Curvularia lunata and Stemphylium sp. were isolated from infected seeds of twelve wheat varieties. Alternaria alternata was isolated as a predominant fungus with highest frequency from Pak-70 followed by Mehran-89. The maximum growth of seedlings was recorded in Anmol and Sarsabz followed by H-68 and minimum from Pak-70, Mehran-89, Soghat and Johar respectively. The germination percentage of all wheat varieties were significantly increased in seeds treated with Baytan, Vitavax, Benlate and Captan as compared to Derosal and Rizolex. Baytan, Vitavax, Benlate, Captan and Dithane M-45 significantly increased the seedling emergence, plant height, number of seeds per spike, 1000-seed weight and grain yield per plot of wheat variety Pak-70. Rizolex had the least effect among the fungicides studied.


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