Management of Fusarium sheath rot in cytoplasmic male sterile lines of rice
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Authors
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R.C. SHARMA, S.S. GILL, D.P. JOSHI and T.S. BHARAJ
Department of Seed Science and Technology, Punjab Agricultural University, Ludhiana 141 004
Keywords:
Fusarium sheath rot, eMS lines, genotypesAbstract
Cytoplasmic male sterile (CMS) lines of rice developed and identified at Punjab Agricultural University, Ludhiana, were found to be highly susceptible to Fusarium sheath rot (Fusarium moniliforme [Gibberella fujikuroi]), becoming one of the major problems of hybrid seed production. Disease management studies conducted during 1990-96 revealed that the disease can be managed to a great extent by integrating different management strategies, viz. timely sowing, judicious use of nitrogenous fertilizers,flag leaf clipping and sprays of gibberellic acid (GA3) and carbendazim at panicle initiation stage and thereafter. GA3 sprays controlled the disease indirectly by enhancing panicle exsertion. Foliar spray of Bavistin (carbendazim) reduced the disease incidence.
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