THE USE OF SODIUM HYPOCHLORITE IN TESTING THE SEED VIABILITY OF WILD OATS

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Abstract
When seeds of wild oats (Avena fatua L.) were imbibed in water for 24 h, followed by 24-h immersion in 6% sodium hypochlorite (NaOCl), the hulls were completely degraded. The embryos were clearly defined before the hull was completely degraded. Several hours were required for the maximum number of sharply defined embryos to develop after NaOCl treatment to dry seeds, and hull degradation was less rapid in these seeds relative to seeds that had been previously imbibed in water for 24 h. The maximum percentage of caryopses with sharply defined embryos was found to be closely correlated to percentage of viable seeds estimated by germination plus tetrazolium tests; thus the NaOCl treatment can be used to estimate the viability of wild oat seeds.

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