Experimental study of leaf wax n-alkane response in winter wheat cultivars to drought conditions

摘要

Highlights?Leaf wax in winter wheat field experiments with varying irrigation at two locations was studied.?Chain length ofn-alkanes was longer at the warmer, wetter location.?Concentration was higher for colder, higher location and deficit irrigation.?Carbon isotopic composition was sensitive to location and deficit irrigation.?Bulk andn-alkane carbon isotopic composition recorded water use efficiency.AbstractLeaf wax forms the boundary between plant leaf and atmosphere. The properties of the wax layer reflect physiological and biochemical adaptation and response to environmental stress, including drought. Agricultural field cropping experiments provide an intermediary between complex natural ecosystems and controlled laboratory growth experiments, routinely involving