Comparativc Studies of the Fertilizer Response of Japanese Old and New Two-rowed Cultivars of Barley

Abstract

This study was planned to know how the two-rowed barley varieties have been improved in Japan during about 100 years in various agronomic characters and malting quality, especially in their fortilizer response. The materials used in this study are as listed in Table 1, consisting of very old cultivars of foreigh origin, and old and newly crossbred cultivars thereaLter in Japan. Two six-rowed cultivars were also included in the materials for comparison. A comparative field test was made under four levels of fertilizer application according to split-plot design with three replications at Okayama University, and malt analysis was performed at Tochigi Branch, Tochigi Agricultural Experiment Station.