Effect of Excess Boron on Broccoli, Cauliflower, and Radish
Open Access
- 1 July 1986
- journal article
- Published by American Society for Horticultural Science in Journal of the American Society for Horticultural Science
- Vol. 111 (4) , 494-498
- https://doi.org/10.21273/jashs.111.4.494
Abstract
The boron tolerance of broccoli (Brassica oleracea L. Italica Group), cauliflower (Brassica oleracea L. Botrytis Group), and radish (Raphanus sativus L.) was determined in large, outdoor sand cultures. Boron treatments were imposed by irrigation with culture solutions that contained 1.0, 4.0, 8.0, 12.0, 16.0, or 20.0 mg B·liter−1 for broccoli and cauliflower, and 1.0, 3.0, 6.0, 10.0, 13.0, or 16.0 mg B·liter−1 for radish. Relative yield was reduced 1.8%, 1.9%, and 1.4% with each unit (mg·liter−1) increase in soil solution B (Bsw) above 1.0, 4.0, and 1.0 mg B·liter−1 for broccoli, cauliflower, and radish, respectively. Increasing Bsw significantly reduced plant size of all 3 vegetables. Over the B range tested, no leaf injury was apparent for these 3 vegetables.Keywords
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