Assessment of causality between climate variables and production for whole crop maize using structural equation modeling

This study aimed to assess the causality of different climate variables on production whole crop maize (Zea mays L.; WCM) in central inland region Korea. Furthermore, effect these was also determined by looking at direct and indirect pathways during stages before after silking. The WCM metadata (n = 640) were collected from Rural Development Administration’s reports new variety adaptability 1985–2011 (27 years). data based year location Korean Meteorology weather information system. Causality, this study, defined various cause-and-effect relationships between climatic factors, such as temperature, rainfall amount, sunshine duration, wind speed relative humidity seeding silking stage harvesting stage. All except stage, which indicates occurred period when season changed spring summer. Therefore, structure constructed taking account that divided In particular, through appropriate temperature range damage caused heat-humidity having while night-heat not affecting production. There a large variation soil surface Over 350 mm affected dry matter yield (DMY) temperatures less than 22°C 900 DMY over 27°C For longitudinal effects 300 26°C respectively.