Therefore, the aim of this study was to evaluate the effects of fungicides and a biological product based on Trichoderma harzianum on the inhibition of the carpogenic and ascospore germination of S.
Fungicide inhibition of carpogenic germination of S.
The variables evaluated were the inhibition of sclerotia germination (ISG), inhibition of carpogenic germination (ICG), number of apothecia (NA), and number of stipes (NS).
The biological product based on Trichoderma also showed efficient inhibition of carpogenic and ascospore germination.
Effect of crop extracts on carpogenic
germination of sclerotia, germination of ascospores and lesion development of Sclerotinia sclerotiorum.
De Bary survive in soil for long time periods, due to a structure of resistance called sclerotia, which in suitable environments can germinate in a mycelial or carpogenic way.
As for the study related to carpogenic germination on different substrates, we have evaluated the germination of sclerotia in Petri dishes containing agar-water (2%), agar-water (2%) + filter paper, sand and plastic gerbox boxes containing soil and sand in a 1:1 ratio in a completely randomized design with observations on the type of germination that occurred in different substrates.
Treatment with sand had the lowest value for both the number of carpogenic germinated sclerotia as well as the number of apothecia formed (Figure 2).
The water-agar treatment is a substrate with a few amounts of nutrients, so it can be deduced that for carpogenic germination their presence is not vital.
Singh SK, Dhar BL, Verma RN (1999) Mass production of carpogenic
sclerotial spawn in Morchella esculenta- An attempt at its domestication.
Influence of four herbicides on carpogenic
germination and apothecium development of Sclerotinia sclerotiorum.
Effects of soil moisture, organic matter and grass mulching on the carpogenic
germination of sclerotia and infection of bean by Sclerotinia sclerotiorum.