Factors influencing survival of sclerotia ofSclerotium cepivorumin New Zealand soils

Autor:	Alison Stewart, C. M. Frampton, G. E. Harper
Rok vydání:	2002
Předmět:	Sclerotium biology Agronomy Loam Soil water Significant difference Soil classification Horticulture biology.organism_classification Desiccation Soil type Agronomy and Crop Science Field conditions
Zdroj:	New Zealand Journal of Crop and Horticultural Science. 30:29-35
ISSN:	1175-8783 0114-0671
Popis:	The influence of soil type, location, and sclerotial condition on survival of sclerotia of Sclerotium cepivorum Berk, was examined under field conditions. There was no significant difference in sclerotial survival in the two soil types tested (Patumahoe clay loam and Wakanui silt loam). Experiments were conducted at two locations (Auckland and Lincoln, New Zealand), which differed substantially in both average soil temperature and rainfall. Location had little effect on sclerotial survival over time. The condition of the sclerotia, related to structural damage caused by desiccation and re‐wetting in the field, was an important influence on survival. A significant proportion of sclerotia (40–60%) decayed after just 2 months in soil, after which numbers declined slowly over a period of 2 years. The sudden drop in viability over the first few months in soil was attributed to damage caused by adverse environmental conditions and subsequent attack by microbes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::db737a3559669706c97a7c5f86fafec2 https://doi.org/10.1080/01140671.2002.9514196 Zobrazit plný text záznamu