Novel Metrics to Characterize In Vitro Pollen Tube Growth Performance of Apple Cultivars.

ABSTRACT: In vitro germination assays are frequently used in screening trials to evaluate the pollen viability of pollinizers. To be effective, screening trials must have defined threshold criteria, from which individuals can then be assessed. However, despite decades of research on pollen viability, no established threshold is available to categorize apple cultivars based on their in vitro pollen tube lengths. This study aimed to identify and characterize the subgroups of cultivars based on their pollen tube growth performance. In vitro pollen tube lengths of 41 individuals were determined by incubating samples on artificial germination media at 15 and 25 °C. A six-number summary statistic was calculated, and hierarchical clustering on principal component (HCPC) analysis was used to determine and c

SUBMITTER: Roeder S 

PROVIDER: S-EPMC8309383 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature