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Link to this article: http://journals.cambridge.org/abstract_S0960258500002361How to cite this article: P. Hofmann and A. M. Steiner (1994). Seed quality as cause for differences in longevity behaviour after seed pretreatment in wheat ( Triticum aestivum L.). AbstractHydration-dehydration seed pretreatments are well-known to improve germination rate, germination and vigour. However, contradictory results have been reported concerning the effect of a pretreatment on longevity. The present paper shows that the effect of a seed pretreatment on longevity is largely dependent on the quality of the seed at the time of pretreatment. Pretreating wheat seeds of high quality increased the rate of viability loss during subsequent storage. On the other hand, pretreating wheat seeds of relatively low quality decreased the rate of seed deterioration during subsequent storage. In the light of these findings, hitherto contradictory results in the literature could be explained.

We consider theoretically and empirically how the location and organization of knowledge production evolve within domestic firms during the period of their acquisition by foreign multinationals. Acquisitions do not increase the risk of closure of the subsidiary's research labs unless acquired by MNEs at the technological frontier. Conditional on keeping research in the subsidiary, there is a large decrease of innovation expenditures, transfer of knowledge and reorganization towards high-skilled workers. We show that innovations increase, which is a consequence of the complementarity between foreign technology transfers and skilled-workers in the subsidiary.

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