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Abstract:Book review in this article:
Plant Growth Substances 1970. Proceedings of the 7th International Conference on Plant Growth Substances Held in Canberra, Australia, December 7–11, 1970. Editor: G arr , D. J.
Harpaz, I., Maize Rough Dwarf, a Planthopper Virus Disease affecting Maize, Rice, Small Grains and Grasses.
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