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Improvement of seed quality and field emergence of Fusarium moniliforme infected sorghum seeds using biological agents
Author(s) -
Raju N S,
Niranjana S R,
Janardhana G R,
Prakash H S,
Shetty H Shekar,
Mathur S B
Publication year - 1999
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/(sici)1097-0010(199902)79:2<206::aid-jsfa167>3.0.co;2-y
Subject(s) - chaetomium globosum , trichoderma harzianum , pseudomonas fluorescens , fusarium , germination , biology , seed treatment , horticulture , cultivar , biological pest control , agronomy , botany , genetics , bacteria
Five different cultivars of sorghum seeds infected with a varied degree of Fusarium moniliforme were treated with biocontrol agents. Pure cultures of Pseudomonas fluorescens , Trichoderma harzianum and Chaetomium globosum at the rate of 1×10 8 cfu g −1 and talcum based formulations of (28×10 7 cfu g −1 ), (19×10 7 cfu g −1 ) and (4×10 6 cfu g −1 ) at the rate of 6 g kg −1 and 10 g kg −1 of seeds were used, respectively. The treated seeds were evaluated for per cent reduction of F moniliforme , seed germination, vigour index and field emergence. It was found that the pure culture of P fluorescens was more effective in reducing the F moniliforme infection followed by T harzianum and C globosum than the Bavistin treated and untreated seeds. Formulations of P fluorescens were effective in reducing the F moniliforme infection and also in increasing the seed germination, vigour index and field emergence, followed by T harzianum and C globosum treatments in comparison with control. © 1999 Society of Chemical Industry