Micronutrients
- 1 June 1987
- journal article
- nutrient elements
- Published by Taylor & Francis in Journal of Plant Nutrition
- Vol. 10 (9) , 2109-2115
- https://doi.org/10.1080/01904168709363761
Abstract
Barley (Hordeum vulgare L., cv. Stirling) was grown in pots of a sandy soil. Increasing additions of boron (B) to the soil increased symptoms of B toxicity and decreased the growth of shoots and grain yield. Symptoms due to B excess were markedly expressed before plant growth was decreased. With additions to the soil, B accumulated in the older leaves of barley and increased the rate of leaf senescence. Root growth was reduced much more than shoot growth. Critical toxic concentrations of B in the shoots of barley at booting were in the range of 50–70 μg/g dry weight.Keywords
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