Effect of inoculum type and timing of application of Coniothyrium minitans on Sclerotinia sclerotiorum: influence on apothecial production
UNSPECIFIED. (2004) Effect of inoculum type and timing of application of Coniothyrium minitans on Sclerotinia sclerotiorum: influence on apothecial production. PLANT PATHOLOGY, 53 (5). pp. 621-628. ISSN 0032-0862Full text not available from this repository.
Official URL: http://dx.doi.org/10.1111/j.1365-3059.2004.01068.x
The effects of different inocula of the mycoparasite Coniothyrium minitans on carpogenic germination of sclerotia of Sclerotinia sclerotiorum at different times of year were assessed. A series of three glasshouse box bioassays was used to compare the effect of five spore-suspension inocula of C. minitans, including three different isolates (Conio, IVT1 and Contans), with a standard maizemeal-perlite inoculum. Apothecial production, as well as viability and C. minitans infection of S. sclerotiorum sclerotia buried in treated soil, were assessed. Maizemeal-perlite inoculum. at 10(7) CFU per cm(3) soil reduced sclerotial germination and apothecial production in all three box bioassays, decreasing sclerotial recovery and viability in the second bioassay and increasing C. minitans infection of sclerotia in the first bioassay. Spore-suspension inocula applied at a lower concentration (10(4) CFU per cm(3) soil) were inconsistent in their effects on sclerotial germination in the three box bioassays. Temperature was an important factor influencing apothecial production. Sclerotial germination was delayed or inhibited when bioassays were made in the summer. High temperatures also inhibited infection of sclerotia by C. minitans. Coniothyrium minitans survived these high temperatures, however, and infected the sclerotia once the temperature decreased to a lower level. Inoculum level of C. minitans was an important factor in reducing apothecial production by sclerotia. The effects of temperature on both carpogenic germination of sclerotia and parasitism of sclerotia by C. minitans are discussed.
|Item Type:||Journal Article|
S Agriculture > SB Plant culture
|Journal or Publication Title:||PLANT PATHOLOGY|
|Publisher:||BLACKWELL PUBLISHING LTD|
|Official Date:||October 2004|
|Number of Pages:||8|
|Page Range:||pp. 621-628|
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