Influence of Soil and Irrigation Management on the Quality of Seedless Crimson Table Grapes

The market for table grapes is moving into mass production of specialty seed-less grapes in covered areas, aiming at obtaining premium prices with early or late production of high quality products. Production of quality seedless grapes is not straightforward since it is requires the correct combination of various independent characteristics, such as color, sugars, size and quantity at the right moment for successful harvesting and marketing. The present study was carried out at the two largest Portuguese producers located in Alentejo, and has the objective of studying the effect of irrigation management strategies and two different soils on the various relevant parameters for successful production and marketing. The management strategies were the application of ten day stress at the end of the cycle, in order to promote early maturing of the grapes. Three different timings of the stress were applied. Soil moisture, sap flow, bark thickness, as well as leaf water potential, stomatal conductance and chlorophyll content were measured regularly during the production season. The results indicate that the roots explore a rather large soil volume and the plants can successfully withstand reasonable periods of drought without significant changes to the plant physiology. Additionally late rains can mask the effect of any farmer applied drought and invalidate any farmer induced stress to the plants. Water-logged soils tend to cause early onset of maturity, but cause the ripening stage to extend over a longer period of time, and thus, in effect result in a delay in the harvest date. Topography also has some effect on the ripening, since hot air tends to accumulate under the plastic at the higher areas of the field. This work is funded by PRODER, 4.1, within the scope of project MORECRIMSON

Competências extra-musicais solicitadas na obra para clarinete solo Der Kleine Harlekin de Karlheinz Stockausen

O objeto de estudo do presente trabalho é a obra Der kleine Harlekin para clarinete solo do compositor Karlheinz Stockhausen. Dada a falta de coesão sentida ao longo da obra aquando da visualização das seis gravações disponíveis, surgiu a necessidade de analisar o papel da consciência corporal do músico na performance, a aproximação da obra à commedia dell' arte e, consequentemente, a temática da utilização da máscara durante a mesma. Paralelamente, o trabalho apresenta ainda uma análise pormenorizada de todas as indicações disponíveis nas intruções da obra, bem como uma conexão entre a liberdade presente em cada uma dessas indicações e a compreensão de uma narrativa ao longo da performance por parte do público, dando especial atenção à ação como elemento base das escolhas interpretativas; Extra-musical skills in the works of musical theater for solo clarinet Abstract: This is an investigation into the piece Der kleine Harlekin for clarinet solo by Karlheinz Stockhausen. Six recordings were analysed and it was possible to understand that, at some moments, there is no cohesion throughout the all work. Thus, an analysis is made on the importance of body awareness, the approach to commedia dell' arte and, thereafter, the use of the mask on performance. Furthermore, the work also presents a detailed analysis of all the information available in the work instructions as well as a connection between their freedom and the understanding of a narrative throughout the performance by the public, giving special attention to the action as a base element of the interpretative choices.