Floral Biology and Chromosome Number of Nine Peach Cultivars

บทคัดย่อ

The studies on floral biology of nine peach cultivars planted at the Royal Ang Khang Station, Fang District, Chiangmai Province were conducted during December 1982 and March 1983. It was found that the maximum receptivity falled between 11.00 am. and 12.00 pm. The cross fertilization of peach with stored pollen was successful but the percentage of fruit set depended on the pollen viability. Storability of pollen at different temperatures showed that O°C storing tended to prolong the viability of pollen compared to those stored at 12°C. Chromosome number of nine peach cultivars was 2n = 16, however, the size was extremely small and lose discernible morphological markers for identification.