Artigos científicos, teses e dissertações
Publicados nas melhores instituições de ensino

ABSTRACT: Cratylia argentea is a promising shrub forage legume native of Cerrado ecosystem. Information concerning the reproductive phenology, seed morphology, and seed production and storage are presented. Seed production varies with genotype, age, and spacing of the plants. See...

ABSTRACTWe studied the effects of seed storage on germination and dormancy alleviation in three species of Fabaceae endemic to campo rupestrein southeastern Brazil. Fresh seeds of Collaea cipoensis, Mimosa maguirei and Mimosa foliolosawere set to germinate and germination of seed...

This work was carried out in the Laboratory of Seeds Analysis in the Department of Fitotecnia at Federal University of Viçosa from March 2004 to November 2005, in order to evaluate the effect of sarcotesta presence, seed moisture content and kind of packaging on papaya seed conse...

Drying of seeds, when imposed prematurely, elicits a switch in metabolism; events unique to development, such as synthesis of storage protein, are terminated, whereas syntheses associated with germination and growth are initiated. To determine the role of desiccation in down-regu...

Seed-type vacuolar processing enzyme (VPE) activity is predicted to be essential for post-translational proteolysis of seed storage proteins in the protein storage vacuole of developing seeds. To test this hypothesis, we examined the protein profiles of developing and germinating...

The objective of this research was to artificial chill of soybean seeds before bagging, through out the insuflation of cold air produced by a PSC 40 COOLSEED, measure the thermal stability over a period of time and, periodically evaluate the vigor, germination in the two blocks a...

The seeds of higher plants accumulate large quantities of storage protein. During seed maturation, storage protein precursors synthesized on rough endoplasmic reticulum are sorted to protein storage vacuoles, where they are converted into the mature forms and accumulated. Previou...

The objectives of this research were to identify reliable methods to evaluate the physiological potential of cucumber seeds, verify the relationship between seed physiological potential and field performance, as well as to define a suitable procedures for seed priming, drying and...

Germination and viability maintenance of limão cravo (Citrus reticulata var. austere Hib. ? Swingle) seeds under artificial drying and several storage conditions, respectively, were studied. Environmental factors as temperature and light, and presence / absence of seed coats (tes...

A novel protein, MP73, was specifically found on the membrane of protein storage vacuoles of pumpkin seed. MP73 appeared during seed maturation and disappeared rapidly after seed germination, in association with the morphological changes of the protein storage vacuoles. The MP73 ...

Seeds are usually stored in physiological conditions in which they gradually lose their viability and vigor depending on storage conditions, storage time, and genotype. Very little is known about the underlying genetics of seed storability and seed deterioration. We analyzed a...

ABSTRACT. Elephantopus mollis Kunth (Asteraceae) is an aromatic medicinal species native to South and Central America with hepatoprotective, anti-inflammatory, antitumor and leishmanicidal properties. We evaluated its maturation, ideal harvest moment, processing and seed storage,...

Seed storability is affected by several factors including genotype and environmental conditions. Corn seed producers are highly concerned with variations in seed longevity of different hybrids, resulting in lower performance than desired during the normal sowing season as much as...

ABSTRACT. In this work, we report the effects of the harvesting time, the stages in fruit ripening and the influence of potassium nitrate in V. quercifolia seed germination. In addition, information about the storage period and light requirements is provided. Fruits were harveste...

The research aimed to study the influence of the seed moisture content and storage temperature on Talauma ovata seed conservation. Thus, two seed lots with initial moisture content of 23.5% (lot 1) and 23.8% (lot 2) were dried and obtained tree moisture content levels in each lot...

Experiments were designed to test whether variation in percent lysine in seed proteins could be recovered in plants regenerated from callus subjected to inhibitory levels of lysine plus threonine. Anther-derived callus was subjected to 1 millimolar lysine plus threonine for three...

Abstract The objective of this study was to evaluate the effect of the addition of Moringa oleifera Lam. seed flour for partial fat replacement in chicken mortadella on physicochemical characteristics, chemical composition, and lipid oxidation. Four mortadellas were prepared: C (...

Seed coating treatments are among the most interesting and potentially beneficial for enhancing the performance of the same. This fact, which helps the producer to improve the performance and development of seedlings, with the possibility the use of micronutrients such as zinc, i...

The role(s) of specific proteases in seed protein processing is only vaguely understood; indeed, the overall role of processing in stable protein deposition has been the subject of more speculation than direct investigation. Seed-type members of the vacuolar processing enzyme (VP...

Increase in moisture content of seeds of Lactuca sativa L. and Fraxinus americana L. in air-dry storage caused a rapid decline in longevity and an increase in the rate of accumulation of chromosome aberrations. Storage of seeds fully imbibed but unable to germinate allowed a high...

Currently, chemical treatment has been a reality for increasing the potential emergence of seeds, especially for those species of high commercial value, such as hybrid maize. This study aimed to evaluate the seed germination and vigor of maize subjected to different products and ...