Short-term Storage of Almond Pollen

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  • 1 Department of Pomology, University of California, Davis, CA 95616
  • 2 Departamento de Mejora y Patología Vegetal, Centro de Edafologia y Biologia Aplicada del Segura–Consejo Superior de Investigaciones Cientificas, P.O. Box 4195, E-30100 Murcia, Spain

Almond [Prunus dulcis (Mill.) D.A. Webb] breeding programs require successful techniques for pollen storage. We studied the pollen viability of two almond cultivars, `Ramillete' and `Desmayo Largueta', during 8 weeks of storage, in conditions that simulated standard situations including storage at 4, 22, and 4 °C alternating with 22 °C (4 °C/22 °C). Viability remained at 60% or more for 2 weeks under all three conditions. After the second week, germination capacity decreased rapidly at 22 °C, but remained above 50% for as long as 8 weeks at 4 °C or 4 °C/22 °C.

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