This article introduces an automatic test for the correct specification of a vector autoregression (VAR) model. The proposed test statistic is a Portmanteau statistic with an automatic selection of the order of the residual serial correlation tested. The test presents several attractive...

Global warming is predicted to have adverse effects on crop productivity and will present an enormous challenge to sustainable development and food security, especially in dryland regions. Prior studies have identified that adapted crop cultivars could effectively act to offset the effects of...