A geostatistical approach to estimate probability of occurrence of Tuber melanosporum in relation to some soil properties

The role of chemometrics in single and sequential extraction assays: A Review. Part II. Cluster analysis, multiple linear regression, mixture resolution, experimental design and other techniques

“…The authors concluded that this kind of soil characterization is useful for farmers, since it enables them to follow crop management practices fitted with the real soil situation. Castrignanò et al [71] applied FKA also to estimate the probability of occurrence of…”

Alkalinity and structure of soils determine the truffle production in the Pyrenean Regions

“…However, this parameter is seldom measured and we lack quantitative references on the subject. Bragato (1997), Lulli et al (1999), Castrignano et al (2000) and Bragato et al (2001) have measured the soil structure at the scale of a truffle bed, according to the method set up by Oades and Waters (1991), i.e. prewetting then gentle wet sieving of aggregates.…”

“…showed that soil structure was granular and aggregate size was 1-2 mm near the soil surface. Castrignano et al (2000) studied the same truffle bed by using geostatistical analysis: they showed that the spatial pattern of the probability of finding a productive burn was related to the soil structure, suggesting that T. melanosporum may prefer a soft and wellaerated soil environment to grow and fruit. Bragato et al (2001) show that, inside the burn, soil aggregate size decreased and the conditions were more oxidative than outside: this pattern was related to a 50% decrease of total organic C and microbial biomass C, assuming that the disappearance of herbaceous cover in the burn and the increase in soil macroporosity might increase air flow in soil surface layers (Bragato, 1997).…”

Black Truffle Production, Soils and Mediterranean Woods: Spanish Research Contributions (1962-2006)

“…Different studies have examined which soil properties have the greatest impact on Tuber biology; these include comparisons of the soil requirements of different species of truffles [22][23][24][25][26][27][28], analyses of soil variability and its relationship with climate [29,30], and studies relating soil parameters to production and development of T. melanosporum [14,[30][31][32][33][34][35][36][37][38][39][40][41][42].…”

“…However, Sourzat [39] indicates that the soil parameters that T. melanosporum tolerates are highly variable. Callot et al [37], Lulli et al [38], Castrignano et al [40] and Ricard [42] report that the development of T. melanosporum increases in deep, well-drained, aerated soils with a reservoir of available water during dry periods. Total organic carbon content must be low in order not to modify their pH, and they require considerable porosity, originated by biological activity (above all, by worms and ants).…”