Original Articles

Abnormalities of the growth point and ear of barley caused by 2,4-dichlorophenoxy acetic acid

Published in: South African Journal of Plant and Soil
Volume 6 , issue 2 , 1989 , pages: 103–107

DOI: 10.1080/02571862.1989.10634491

Author(s): J.W. Loubser Department of Agriculture and Water Supply, Republic of South Africa , A. , L.P. Cairns , Republic of South Africa

Keywords: Apical meristem , barley , growth point , Hordeum vulgare L. , phenoxy herbicide damage , shoot apex

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Abstract

Treatment of barley plants with 2,4-D, when the main tiller apical meristem was in the late vegetative or double ridge stage, resulted in the production of various abnormalities including missing spikes, branched spikes, whorls of spikelets and paired spikelets instead of the normal alternate arrangement, 90° turn in the plane of the spike and the production of double seeds.

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