4 documents found, page 1 of 1
Fitogenetic Resources Conservation in Seed Banks – review
Pirata, MadalenaPlants are essential for the ecosystem proper functioning. They are a source of food for many species, a source of oxygen, it is possible to collected compounds for the pharmaceutical industry and fibers for making clothing, they have a very important role in slowing down climate change and soil destruction. The possibility of losing some plant species is real, and there is a growing concern with the preservati...
Germinative characteristics of tamarillo seeds (Solanum betaceum Cav.) from red...
Pirata, MadalenaThis study appears in the context of the application of germination tests to samples of tamarillo (Solanum betaceum Cav.) seeds of the red and orange strains, post-harvest of the ripe fruits, to serve as a comparison term to the viability tests of ex situ seeds conserved. Germination tests were carried out in Petri dishes with two treatments that were distinguished by the total absence of light and a photoperio...
Testing four methods to assess leaf area in young olive trees
Coelho, Renato; Dambiro, José; Carlos, Rui; Pirata, Madalena; Campos, Tiago; Queirós, Rui; Carrilho, João; Barreto, Sérgio; Tufik, CamilaAssessment of leaf area is of fundamental importance to calculate diverse physiological parameters such as the total rate of transpiration or photosynthesis of a plant or its leaf area index (LAI). This paper reports the determination of total leaf area in 3 year-old olive trees of two varieties using four different methods and leaf counting as the control method. Leaf area was determined on 7 plants of each va...
Effects of different irrigation levels on the quality of Trincadeira grapes – M...
Pirata, Madalena; Coelho, Renato; Silva, Luis Leopoldo; da Silva, José RafaelThis work reports the research on Trincadeira grape vine subject to three increasing levels of irrigation: i) non irrigation, ii) farmer irrigation or iii) full irrigation. During grape’s maturation, berry size and quality parameters were analyzed. Only in September all analysed parameters were significantly different: non-irrigated plants had smaller berries and lower brix, anthocyanins and polyphenols than ir...