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Proceedings of the International Plant Propagator's Society

Vol. 49

Title:
Seed Treatment of New Zealand Sophora Species With Concentrated Sulphuric Acid To Hasten Germination

Author:
Eric J. Appleton

pp: 113

Abstract:
INTRODUCTION

Sophora microphylla and Sophora tetraptera are small trees with attractive yellow flowers in spring. Their mature seeds have hard yellow seed coats, which must be scarified to allow the entrance of moisture before germination can begin. Unscrarified seed can lie in the soil for many years without germinating. If only a few seedlings are needed the hard coat can be cut with secateurs or a sharp knife at the end farthest from the micropyle. Soaking in water for 24 h will swell the seed to twice its size and it can be sown.

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