scholarly journals A review of the direct and indirect effects of nitrogen on botrytis bunch rot in wine grapes

2008 ◽  
Vol 61 ◽  
pp. 306-310 ◽  
Author(s):  
D.C. Mundy
Keyword(s):  
Indirect Effects ◽  
Metabolic Pathways ◽  
Nitrogen Nutrition ◽  
Integrated Management ◽  
Quality Parameters ◽  
Management Systems ◽  
Direct And Indirect Effects ◽  
Wine Grapes ◽  
Berry Quality ◽  
Bunch Rot

Nitrogen is an important macronutrient for grapevines influencing a number of metabolic pathways and plant structures This review provides a summary of some direct and indirect effects of nitrogen fertilisation on bunch rot incidence in the field Direct changes due to increased nitrogen nutrition include greater thickness of the wax on berry surfaces and increased concentrations of the biochemical defence compounds produced in them Indirect changes that result from increased nitrogen include development of tighter bunches and denser canopies As integrated management systems become more complex a better understanding of different components such as nitrogen nutrition is required to allow vineyard managers to make informed decisions on how potential changes to current practices may influence disease and berry quality parameters

Knowledge management systems success: a contingency perspective

2008 ◽  
Vol 12 (1) ◽  
pp. 119-132 ◽  
Author(s):  
Mohamed Khalifa ◽  
Angela Yan Yu ◽  
Kathy Ning Shen
Keyword(s):  
Knowledge Management ◽  
Organizational Performance ◽  
Indirect Effects ◽  
Strong Support ◽  
Survey Study ◽  
Management Systems ◽  
Knowledge Management Systems ◽  
Direct And Indirect Effects ◽  
Content Type ◽  
Empirical Results

PurposeThis paper aims at clarifying important contingencies for the success of knowledge management systems (KMS). More specifically, a model is developed based on the IS success model, the resource‐based view and the knowledge‐based view to explain both direct and indirect effects of KMS on organizational performance.Design/methodology/approachTo test the proposed model, a survey study was conducted involving over 100 organizations that implemented various functions of KMS. The data were analyzed using structural equation modelling for the simultaneous testing of the measurement and structural models.FindingsThe empirical results provided strong support for the proposed research model. KMS usage was found to have both direct and indirect effects on organizational performance. In particular, organizational agility and innovativeness were confirmed as important mediators of KMS effects.Research limitations/implicationsThe findings of this research highlight the necessity of adopting a contingency theory for studying the effects of KMS on organizational performance and demonstrate the important role of some of these contingencies.Practical implicationsPractically, the empirical results shed light on the significance and relative importance of specific KMS applications. i.e. enterprise portals, supply chain management, customer relationship management, and competitive intelligence.Originality/valueThis research fills an important theoretical gap in KM research and provides valuable insights for practitioners.

Direct and indirect effects of dynamic social impact

2005 ◽  
Author(s):  
Dana M. Binder ◽  
Martin J. Bourgeois ◽  
Christine M. Shea Adams
Keyword(s):  
Indirect Effects ◽  
Social Impact ◽  
Direct And Indirect Effects
Sign in / Sign up

Export Citation Format

Share Document