Effect of seed nitrogen on response to applied nitrogen in six spring barley (Hordeum vulgare L.) cultivars in a glasshouse |
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Authors: | M A Rahman P J Goodman |
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Institution: | (1) Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth, UK;(2) Present address: Department of Plant Science, University of Guyana, Georgetown, Guyana |
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Abstract: | Summary Variation in the nitrogen content of seed of six barley cultivars was brought about by growing parent plants at four nitrogen levels. Shoot dry weight of plants grown for 23 days from these seeds was generally enhanced by an increase in seed nitrogen content. The most responsive cultivar was a primitive type of barley from Ethiopia. Cultivars with a longer breeding history were less responsive. Risø 1508 apparently had physiological and biochemical limitations in responding to extra seed nitrogen. In the barley cultivars studied extra seed nitrogen seems to supplement, rather than substitute for, nitrogen fertilizer in the seed bed. |
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Keywords: | Barley Cultivars Early vigour Glasshouse Hordeum vulgare L Nitrogen Seed |
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