As humans continue to alter ecosystems through land-use activities, revegetation projects will be one important way to restore or maintain impacted plant communities. Certain species, such as knobcone pine (Pinus attenuata Lemmon), have been used in some revegetation projects because of their preferable traits. Information on seed production and viability is critical to planning effective proje...

In this paper, a formal model for antivirus update agent system is presented based on mobile agent technology and predicate/transition Petri nets. The mobile agent system contains two mobile agents called DCA and UNA. It sends out agents to update antivirus on client computers in a network. Each agent takes on a specified responsibility. First, DCA roams through the network and check the last d...

1. Previous studies have demonstrated that wind dispersal is an effective mode of seed dispersal for pines ( Pinus , Pinaceae) with seeds weighing <90 mg, but not for largerseeded ( ≥ 90 mg) pines. Consequently, most large-seeded pines rely on birds in the family Corvidae for seed dispersal, but some do not, and most of their seeds fall near the parent tree. Why seeds of these pines are not dis...

Purpose: CONICET is the most important research institution in Argentina. It depends directly from Argentina’s President but its internal authorities are elected by around 8,000 researches across the country. During 2011 the CONICET developed a web voting system to replace the traditional mail-based process. In 2012 and 2014 CONICET conducted two web election with no complains from candidates a...

Yam is an important food and cash crop in Nigeria. The seed system mostly farmer-based its challenges opportunities are not well documented. This study reports results of surveys, interviews, focus group discussions participant observations that describe local practices characterizing yam cultivation the five states Our findings show ware dynamic highly commercialized goods There a high demand ...

The reawakened interest in competition issues in agricultural markets might appear to have found its ideal poster child in the seed industry. Concentration is high and market structure has shown remarkable dynamics over the last 15 years, with high-profile mergers and acquisitions by key players. A dominant firm— Monsanto—seems to have emerged, at least from the perspective of biotech traits pe...

The model plant Oenothera has contributed significantly to the biological sciences and it dominated the early development of plant genetics, cytogenetics, and evolutionary biology. The great advantage of using Oenothera as a model system is a large body of genetic, cytological, morphological, and ecological information collected over more than a century. The Oenothera system offers a well-studi...