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    Author(s): F.E. Bridgwater; D.L. Bramlett; V.D. Hipkins
    Date: 1999
    Source: Proceedings of the 25th Biennial Southern Forest Tree Improvement Conference, New Orleans, Louisiana, USA
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (113 KB)

    Description

    Controlled mass pollination (CMP) among outstanding parents is one way to increase genetic gains from traditional wind-pollinated seed orchards, but the economic success of CMP depends on both genetic gains and costs. CMP has been shown. to be cost-effective (Bridgwater et al. 1998) even when costs were adjusted for risk (Byram and Bridgwater 1999, These Proceedings). Both of these studies assumed that CMP was 100% effective. That is, there was no pollen contamination during the CMP process that would reduce the expected gains from mating outstanding parents. This assumption is not always met under operational conditions due to variable strobilus development and the limited amount of time to conduct CMP. It is important for producers of CMP seeds to know how much contaminated seed might be produced under operational conditions.

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    Citation

    Bridgwater, F.E.; Bramlett, D.L.; Hipkins, V.D. 1999. Timing of Bag Application and Removal in Controlled Mass Pollination. Proceedings of the 25th Biennial Southern Forest Tree Improvement Conference, New Orleans, Louisiana, USA

    Keywords

    pollen contamination, electrophoretic analysis, strobilus developmental stage

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