บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Genetic analysis of postharvest flower longevity in Asiatic hybrid lilies.

Meulen-Muisers, J. J. M. van der; Oeveren, J. C. van; Jansen, J.; Tuyl, J. M. van;

Euphytica Year: 1999 Vol: 107 Issue: 2 Pages: 149-157 Ref: 22 ref.

1999

บทคัดย่อ

Genetic analysis of postharvest flower longevity in Asiatic hybrid lilies.

To investigate the genetic regulation of postharvest flower longevity in Asiatic hybrid lilies (Lilium), 10 cultivars and 45 progenies were forced, harvested and evaluated under standardised conditions in growth chambers. Analysis of variance for individual flower longevity indicated highly significant (p < 0.001) variation among parents, among progenies and among descendants within progenies. High broad-sense heritability (0.79) calculated at the individual plant level indicated that selection for long individual flower longevity can be expected to be very effective. General combining ability (GCA) effects were highly significant (p < 0.001), and the estimated narrow-sense heritability was high (0.74). Therefore, individual flower longevity of a genotype can be used as an indication for its breeding value. However, deviating results can be expected as specific combining ability (SCA) effects were also significant (p = 0.046). Small but significant correlations between individual flower longevit

y and other plant characters were found. The impact of these correlations on the selection efficiency for improved postharvest performance of lily inflorescences is discussed.