Characteristics of Seed-germination and Fruit for Sageretia thea in Jeju Region
2015
Song, S.C., Jeju Special Self Governing Province Agricultural Research and Extension Services, Jeju, Republic of Korea | Song, C.K., Jeju National University, Jeju, Republic of Korea | Kim, J.S., Jeju National University, Jeju, Republic of Korea
Characteristic of seed for Sageretia thea fruits collected from the habitat of harvest season in Jeju and their germination ratio in different temperatures were considered. The average weight was 0.2 g, average diameter was 7.2 mm, average length was 6.5 mm, and size distribution range was 5.1 ~ 10.0 mm. The number of seeds per fruit was 1.8, and 1000 grain weight was 7.77 g with diameter of 3.7 mm and thickness of 1.7 mm in size. The fruit maturation was investigated to be from April 27 to June 1, when the best maturation period was about a week, May 11 to May 18. Also, the fruits grown on May 4 to May 11 were seen to have the bigger in transverse size and weight with a tendency of the earlier maturation date has the greater the number of seeds. S. thea seeds pretreated for 24 hours at 50 Celsius were not germinated, while most of those pretreated for 24 hours at 4 Celsius were successfully germinated at any degree of temperature (except at a temperature of 10 Celsius). Particularly, the highest germination rate of 55% was made at 15 Celsius, and plumule and radicle were best grown within the temperature range of 25 Celsius.
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