Seed Concerns – Self-Pollinated Species Harold Bockelman National Small Grains Collection

The National Small Grains Collection Predominantly self-pollinated More than 95% of the 128,855 accessions are self- pollinated Exceptions are Secale (rye), Aegilops, and some Hordeum species

NSGC Regeneration Locations Aberdeen, IDspring plantingspring habit: barley oat wheat triticale rye fall plantingwinter habit: wheat triticale rye Parlier, CAfall plantingwinter habit: barley facultative, mixed, and unknown habits Stuttgart, ARspring plantingrice (up to 130 days to maturity) Puerto Ricowinter plantingrice (>130 days – daylength sensitive types) Greenhouseswinter plantingwild species; critical inventory and viability summer plantingOryza species

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Maintaining the Integrity of Accessions Heterogeneous Accessions Population Size Seed Viability Good descriptor data Field design Quality control at all stages

What about a predominantly self-pollinating species that exhibits 5% outcrossing? Distance Placement Bagging