Agriculture and forestry

At first glance, the evergreen Caper Spurge (Euphorbia lathyris) is a less-than-impressive plant. Nevertheless, this herb does indeed pack some punch: the seeds contain 40-50 percent fatty oil. This abundantly flowing ‘latex’ also contains 8-12 percent volatile unsaturated hydrocarbons known as terpenes. What as really attracting the interest of scientists is the terpenes that take the form of energy-rich ‘triterpenoids’. This is because they represent a possible additive for biofuels.

The Asimina triloba plant, also known as the pawpaw, is native to North America and was valued by North America’s indigenous people for centuries. In addition to its highly aromatic fruit, the tree is hardy and resistant to pests. The fruit trees are rare in Europe and Germany because the tree does not propagate well. The company Bock Bio Science GmbH has been researching on ways to increase the pawpaw population in local orchards since 2012. The goal of the biologists from Bremen is the biotechnical mass propagation of plants in the laboratory.

Biochar has long been known in agriculture as a soil improver. The charred remains of plant biomass not only promote soil quality but also stimulate plant growth. In addition, its potential to compensate for the greenhouse gas carbon dioxide, is immense. Researchers at the University of Tübingen have now colonised biochar made of wood with microfungi and developed a special substrate for horticulture, which promotes root growth in seedlings and makes them more resistant to fungal diseases.

Methanol is one of the chemical industry’s most important source materials. It is colourless, flammable and smells of alcohol, and the starting point for manufacturing paints and varnishes as well as fuel. In 2015, the global demand for methanol was about 65 million tonnes. However, this compound of carbon monoxide, water and oxygen is produced mainly from finite resources such as mineral oil, natural gas or coal.

The sugar beet is one of the more recent arrivals on the fields of the world’s temperate zones, not least because it took until the 18th century for German plant breeders to significantly increase the sugar content of fodder beet. Once this had been achieved, the groundwork was laid for the industrial production of sugar. Today, about one third of the sugar consumed worldwide derives from sugar beet (Beta vulgaris), generating an annual turnover of around €25 billion. Beet is also used in the production of bioenergy, including bioethanol.

The development of agricultural crops that can meet the requirements of the future is demanding innovative approaches to research. Climate change and the growing world population are motivating researchers to look for new ways of safeguarding human nutrition. Here, knowledge about the genomic sequence of important agricultural crops represents a crucial basis for breeding new varieties that provide stable harvest yields even in varying weather conditions, and which are equipped to combat diseases and pests.

The tomato is one of the most important vegetables on our dinner plates. From cherry tomatoes to beef tomatoes, there’s an enormous assortment to choose from, if you know where to find them. Many of the tomatoes commonly available in supermarkets derive from an accelerated breeding process known as smart breeding. The technique is based on genetic analyses and the presence of molecular markers in the genome of a plant.

Floods, drought, frost and hail are making the lives of farmers increasingly difficult. Until now, the consequences remain moderate. If necessary, trading relationships across national borders can compensate for gaps in crop yields, and government support can help farmers to bridge any financial shortfalls. But will it be possible to master the consequences of climate change in the future as well? What will happen if we fail to meet the international climate target of restricting global warming to under two degrees compared to the pre-industrial period?