A MULTIDISCIPLINARY APPROACH TO PRESERVE AND VALUE THE CHESTNUT HERITAGE

In Italy the spread of chestnut (Castanea sativa Mill.) has favored the evolution of a rich varietal heritage in different pedoclimatic areas. Conservation of this wide germplasm is very important to save valuable genotypes, because they may retain special adaptative and technological traits and so meet the demands of the market that nowadays requires, more and more, typical products of high quality. The preservation and valorization of this heritage can be achieved through a multidisciplinary approach. Genetic, morphologic, chemical and sensory analyses allow to define the properties and the characteristics of each chestnut cultivar and can be helpful in choosing the most proper uses of the nuts. In this work, we describe our experience on chestnut characterization aimed to select plant material to be exploited in the different growing areas and show how a multidisciplinary approach greatly improves the efficacy of the characterization and the reliability of the evaluation of the germplasm. The final aim is to provide growers with selected plant material able to yield nuts suitable for the fresh market or for processing and offer to consumers high quality products from vocated areas

Piccoli frutti «made in Italy» : un comparto in aumento

Il comparto dei berry (mirtillo e lampone in particolare) sta decisamente crescendo in Italia: la ricerca ha fatto e continua a fare molto e diversi attori della fi liera sono disponibili a investire. Per questo la corretta scelta varietale per ogni areale di produzione resta fondamentale al fine di rendere redditizio l\u2019impianto

Scegliere la cultivar di lampone, mirtillo e rovo per il 2011

Austenitic stainless steel cylinders and rings are spray water quenched to create residual stresses at or greater than the yield strength. The residual stresses are measured using neutron diffraction, and two mechanical strain relaxation methods: deep hole drilling and incremental centre hole drilling. This paper compares the measurements with predictions of quenching using finite element analysis. Also finite element analysis is used to mimic deep hole and incremental centre hole drilling methods and to reconstruct residual stresses as if they have been measured. The measurements reveal similar trends to the predictions but there is only limited agreement between their magnitudes. However, there is better agreement between the reconstructed stresses and the measurements. Both the two mechanical strain relaxation methods reveal that large discrepancies occur between measurements and predictions arise because of plasticity. Irrespective of this and surprisingly there is good agreement between deep hole drilling and neutron diffraction measurements