1,721,040 research outputs found
Effetto dell'entita' della traspirazione sul contenuto di calcio delle bacche di due varieta' di Vitis vinifera (Barbera e Croatina).
Effetto del portinnesto sul contenuto minerale, sul pH e sulla concentrazione di acidi organici del mosto del vitigno Chardonnay.
La prova condotta sul vitigno Chardonnay, cl. 130 SMA, innestato su 7 portinnesti (5C, 1103P, K5BB, G13, 8B, 41B, SO4) ha esaminato gli andamenti e i contenuti alla raccolta di alcune componenti della bacca (K+, pH, acidità titolabile, acido tartarico, acido malico). I portinnesti SO4 e K5BB hanno indotto i contenuti più elevati di K+ nel mosto, mentre 1103P e %c i più bassi. SO4 e K5BB hanno determinato i valori di pH del mosto più elevati, 1103P e 5C i più bassi. E' stata trovata una correlazione positiva tra pH e K+ del mosto. L'effetto del portinnesto può essere attribuito alla variazione della concentrazione di K+ dei piccioli delle foglie
Potassium uptake in grapevine and relationship between K-contents and K-absorption in excised roots of grapevine varieties.
Results confirm a great genetical difference in K+ uptake of grapevine genotypes. Riparia and Rupestris genotypes induce high and low absorption capability in their offspring, respectively.
In agreement with other authors and with what was carried out on erbaceous plants, the use of excised roots for evaluating K+ absorption capability is achievable. The early evaluation method of nutritional needs in grapevine rootstocks is very useful in genetic improvement, which normally takes long time to reach some significant results
Going Beyond Counting First Authors in Author Co-citation Analysis
The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Effect of seeds number per berry on mineral concentration in grapevine (Vitis vinifera L.) berries.
Differences varietales de l'absorption de Potassium (Rb86) dans certains porte-greffes de vigne. II.Cinetiques de l'influx de Rb86 dans racines excises.
Le travail de création de nouveaux porte-greffes de vigne el l'évaluation de leur valeur agronomique a connu une période de grand développement surtout dans les premières années après l'invasion phyllosserique. Le modèle d'absorption du K+ (Rb86) a été examiné sur quatre porte-greffe de vigne en employant des fragments de racines excisées
Effect of seeds number per berry on mineral concentration in grapevine (Vitis vinifera L.) berries.
Variations on the Author
“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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