Plant growth regulators to manipulate cereal growth in northern growing conditions

v2003okKVADiss.: Helsinki : Helsingin yliopisto, 200

Impact dehulling oat grain to improve quality of on-farm produced feed. I. Hullability and associated changes in nutritive value and energy content

High hull content of oat (Avena sativa L.) limits its use as on-farm feed. Dehulling, used in the oat processing industry, can be performed on-farm, to increase nutritive value and energy content. A laboratory model of an impact oat dehuller, similar to a commercial device, was used to study the effects of rotation speed, grain characteristics and moisture content on hullability and groat energy content. Grain of oat cultivar Salo [from official variety trials, MTT Agrifood Research Finland, Jokioinen (60°49'N), 1996–2000] was assessed for quality prior to dehulling. Impact dehulling rotation speed ranged from 200 to 500 r min-1 at 50 r min-1 intervals, with moisture content of grains ranging from 10% up to 18%. Dehulling improved oat energy content markedly. Hullability was better at higher rotation speeds. 350 r min-1 was determined to be adequate to result in improved quality as no marked additional improvements were demonstrated by increasing rotation speed further. As the proportion of hulless groats increased with higher rotation speeds, nutritional and energy content of groat yield improved consistently. The higher the grain moisture, the higher the proportion of grains retaining hulls. Impact dehulling proved to be a potentially useful method to increase energy content of oat grains on-farm

Use of quality seed as a means to sustainably intensify northern European barley production

v2014okKA

Nutrient use efficacy and resistance to seed borne diseases in European spring barley cultivars and landraces

A two-year field experiment was conducted during 2011‒2012 to study the breeding effect on N use efficiency traits of barley. All together 195 genotypes (72 the Nordic Genetic Resource Center landraces and 123 cultivars released during 1916-2010) were grown in two N regimes (35 and 70 kg N/ha) at the experimental farm of MTT Agrifood Research Finland (presently Natural Resources Institute Finland) in Jokioinen. The results revealed clear positive breeding effect on N use efficiency in barley cultivars. Breeding had also improved grain yield, disease resistance and traits related to yield, like grain number, grain weight and harvest inde

Kasvinjalostus luomutuotannon monimuotoisuuden turvaajana

Loppuraportti, COBRA201

Mallasohran sadon ja laadun rakentuminen – jyvän valkuaispitoisuuden hallinta?

ei saatavill

Leveraging the benefits of modularity in the provision of integrated solutions: A strategic learning perspective

The purpose of this study is to improve the current understanding of the ways a manufacturer can learn to leverage the benefits associated with modular solution designs in its transition to a solution provider. We find that a modular solution design acts as a key integration mechanism, allowing the provider to orchestrate actors in the supply network for simultaneous exploitation of resources related to the existing solution modules and exploration of new ones. Yet, to implement a modular solution design effectively, the provider needs to engage in strategic learning that improves its ability to explore customers' readiness to adopt new types of solutions, while it develops an ability to deploy the derivative solutions by utilizing the resources related to its core product business. Mastering the co-evolutionary processes of strategic learning that combine elements of explorative and exploitative learning facilitates a pursuit of the industrializer path to service-based growth. For managers, our findings demonstrate the ways a manufacturer may unlock the economies of scale in solution business by leveraging the benefits of a modular solution design.</p

Impact dehulling oat grain to improve quality of on-farm produced feed. 2. Groat breakage and storability

Dehulling improves markedly the feed value of oat (Avena sativa L.), but good storability of groat mass is required when large quantities of oat are dehulled at any one time. A laboratory model of an impact oat dehuller, similar to a commercial device, was used to study the effects of rotation speed and grain moisture content on groat breakage and the storage life of oat groats. Grain of oat cultivar Salo [from official variety trials, MTT Agrifood Research Finland, Jokioinen (60°49'N), 1996–2000] was dehulled with an impact oat dehuller using rotation speeds of 200 to 500 r min-1 at 50 r min-1 intervals. In an additional experiment, grains were moistened resulting in moisture content ranging from 10% to 18%. Proportion of broken groats and size distribution of groat particles were measured. Storability was determined through analysing the evolution of pentanal, hexanal and free fatty acid content after storing groats at 10, 20 and 30°C for two and five months. At higher rotation speeds more broken groats resulted, but dehulling did not cause any marked rancidification of the groats. Thus, impact dehulling is a practical method to increase the energy content of oat grains on-farm without such problems as groat breakage induced oxidation of fatty acids