| Lilium callosum, which has orange flowers,moderate height, as well as ability of resistance of disease,heat and salt, is a main parent of resistance breeding of lily 1-year-old,2-year-old , 4-year-old, 5-year-old L. callosum cultivated in Northeast forestry university in Harbin and wild L.callosum in Qiqihar are studied in this paper.The study shows that the stem of 1-year-old L.callosum doesn't put forth and that there are 50.60 percent of stem put forth and 65.97 percent of cultivated 2-year-old L.callosum are flowered.The optimal temperature for seed germination of cultivated 4-year-old Lcallosum is 25 ℃ .The percentage of seeds germination is decreased with increase or decrease of temperature. But the exception is 5 ℃ when the rate of the seed germination could been greatly improved and seed couldn't germinated at 35℃. Seed germination of different fruit in the same infructescence varies with the fruit's location in the fructescence. Seed germination of the lowest fruit is superior to the middle fruits,then the upset.The result also reveals that seed germination is also influenced by the seed location in the fruit.in which seed in the middle is superior to the lowest and then the upset. Seed germination has positive correlation to the weight of a thousand seeds .Under the same experiment environment.seed germination of wild L.callosum keeps up with that of cultivated L.callosum while the germination duration was also longer than cultivated L.callosum for about 14 days.At last, seed germination of L.callosum which has been stored indoor for 1 year don't decrease.L.callosum flowers in afternoon and flowerage lasts about 2~3h. Variation rate of cultivated L.callosum flower has been greatly improved.The breeding system of L.callosum is mainly outcrossing, and party incrossing.Using well-sold 'Prato' as female parent and wild and high resistance L.callosum as male parent, the hybridization experiment was carried out and the interspecific hybrid was obtained. The result show that the female parent has 33% fruit rate and 8% embrionic seeds Although the difference in form of 'Prato' and L.callosum was significent, they had certain reproduction affinity, the charactiristic of the hybrid is situated between parents.As cultivated.the total number of Lcallosum which can develop bulblet spontaneously is less than 7.70% of the total plants.The optimal condition for growth of bulblet is 25℃.Moreover, the number of bulblet is linked with the position of scale. The number of bulblet has positive correlation with the diameter of bulblet.The average distribution of each organ in 1-year-old spring sowing L.callosum which origin from new seeds is listed in turn: bulb (44.80%)>leaf(41.80%)>root(13.40%). The average distribution of each organ in 1-year-old autumn sowing L.callosum which origin from new seeds is listed in turn: bulb (60.87%)>leaf(22.46%)>root(16.66%). The average distribution of each organ in 1 -year-old autumn sowing L.callosum which origin from seeds stored for 1 year indoor is listed in turn: bulb (59.84%)>leaf(22.30%)>root( 17.86%). The average distribution of each organ in 2-year-old L.callosum which didn't develop stem is listed in turn: bulb (77.55%)>leaf(13.8()%)>root(8.65%). The average distribution of each organ in flowered 2-year-old L.callosum is listed in turn: bulb (65.26%) >fruit (12.38%) > leaf (8.42%) >root (6.30%) .
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