Study on flowering bioloial characteristics of Lilium callosum

The biological characteristics of flowering of cultivated and wild Lilium callosum including flowering age,flowering period and the process of flowering,variation of floral structure,as well as pollination experiment and medium were studied.The results showed that the percent of flower stalk formation of 2-year-old cultivated was 50.60%,and the flowering percent was 33.38%.All 3-year-old plants flowered.The group flowering period was 22 days and the flowering peak lasted 7-8 days.The flowering time was 15:30 PM and flowerage lasted about 2-3 hours.The single flowering period was 4 days.The rate of petal variation about cultivated L.callosum increased greatly than wild plants in the second year.Meanwhile,the rate of androecium degeneration and androecium longer than gynoecium had increased with the prolonging of cultivated time,while the rate of gynoecium degeneration decreased.The way of pollination on L.callosum was mostly cross-pollination.Though self-pollination could seed setting,the percentage of it was very low.Pollinated from blossom 2 days ago to bloomed 3 days later,while the rates of fruiting and full seeds of single fruit both increased obviously.