The effects of temperature and moisture on after-ripening of Cenchrus ciliaris seeds |
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| Authors: | Farzad Sharif-Zadeh Alistair J Murdoch |
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| Institution: | Seed Science Laboratory, Department of Agriculture, The University of Reading, Earley Gate, 237, Reading, RG6 6AU, U.K. |
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| Abstract: | After-ripening of Cenchrus ciliaris L. spikelets was modelled during storage at various temperatures and equilibrium relative humidities (e.r.h.). At 40 and 50% e.r.h., the rate of after-ripening increased linearly with increase of storage temperature. The highest after-ripening rate was achieved by storing the seeds in 40°C and 50% e.r.h. At 70% e.r.h., however, seeds remained viable at 20 and 30°C but largely failed to after-ripen. Use of the model to predict the storage period required for decreasing dormancy to any desired level is described. The application to re-seeding degraded rangelands in arid areas is discussed. |
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| Keywords: | after-ripening model Buffel grass Cenchrus ciliaris seed dormancy seed germination rangeland re-seeding |
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