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Archive for November, 2011

Mendel's garden in St. Thomas's Abbey, Brno.

In search of the Platzgeist (TIME 100)

Posted on November 30th, 2011 by Alun Salt

It’s easy to pin scientific credit on a person. He or she usually has a name on the key publication, but how do you credit a place? Science is a human activity, so is it just the humans that matter or are there things were place contributes as much as people? While I was kicking [...]

A seedbank. Photo: Rodomiro Ortiz.

Education and Research of Plant Breeding for the 21st Century

Posted on November 29th, 2011 by Rodomiro Ortiz

General Perspective During the 20th Century national, regional and international gene banks established major collections for most crops to ensure the conservation of plant genetic resources. However, the use of this crop genetic endowment remains limited due to the lack of systematic research to provide a comprehensive framework for the efficient identification and introgression of [...]

Rainer Zenz/Wikimedia Commons

Chips and the Washington Convention

Posted on November 29th, 2011 by Nigel Chaffey

CITES (the Convention on International Trade in Endangered Species of Wild Fauna and Flora – apparently, also known as the Washington Convention) is a treaty whose aim is to ensure that international trade in specimens of wild animals and plants does not threaten the survival of the species in the wild. Enacted in 1975, it offers [...]

Towards a model for cut-rose

Towards a model for cut-rose

Posted on November 28th, 2011 by Alex

The production system of cut-rose (Rosa × hybrida) involves a complex combination of plant material, management practice and environment. Using XL programming, Buck-Sorlin et al. present a 3-D structural–functional model for the system that allows the creation of a wide range of initial structures thanks to simple interactive rules for pruning, cutting and bending. The model [...]

The Galapagos Islands, iconic in the history of Evolutionary Theory, but is this the place it was discovered?

The scale of science and history (TIME 100)

Posted on November 28th, 2011 by Alun Salt

TIME has recently published 100 greatest places in the world. The book is a collection of sites that, the editors argue, have had the biggest impact on world history. It’s excellent blog material because hardly anyone has read it (including me), any list will be personal and omit something someone feels is important and, following [...]

Simulating grazing of a 3-D sward canopy

Simulating grazing of a 3-D sward canopy

Posted on November 27th, 2011 by Alex

The productivity and stability of grazed grassland rely on dynamic interactions between the sward and the animal. Combes et al. record 3-D canopy structures of swards of white clover (Trifolium repens) using an electromagnetic digitizer and adapted software, and synthesize virtual canopies in order to calculate bite mass of grazing animals and to determine effects on [...]

Modelling crown and wood characteristics of Pinus

Modelling crown and wood characteristics of Pinus

Posted on November 25th, 2011 by Alex

Functional–structural tree models can be used not only for biomass and crown architecture modelling, but also for wood properties. Using L-system language, Fernández et al.  develop a model based on plant allometry and environmental signals so that a harmonic growth can be achieved, and by using monthly steps detailed three-dimensional information for crown and wood characteristics [...]