Full TGIF Record # 236929
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Publication Type:
i
Report
Author(s):Han, Lei; Sun, Zhen-yuan; Qian, Yong-qiang; Peng, Zhen-hua
Author Affiliation:Forestry Research Institute, Chinese Academy of Forestry, Beijing, China
Title:Changes in biological characteristics of Poa pratensis carried by Shenzhou-3 spaceship
Source:[Caoye Kexue] [Pratacultural Science]. Vol. 21, No. 5, May 15 2004, p. 17-19.
Publishing Information:[Lanzhou Shi, China]: ["Cao Ye Ke Xue" Bian Jibu]
# of Pages:3
Abstract/Contents:"Dry seeds of Poa pratensis Nasu were carried by SZ-3 spaceship (treatment) and compared with seeds on the earth (CK). For the seeds, characteristics including germination rate, and leaf number, tiller number, leaf width, and plant height 80 days after sowing were determined. The treatment showed 6 more leaves than CK, and a mutation with 81 leaves appeared (CK had only 21 leaves maximum). For the control, tiller number ranged from 0 to 5 but was 0 to 26 for the treatment. Leaf width increased from 1.96 mm for the CK to 2.43 mm for the treatment; and 17.8% of plants in the treatment had widths of 3.3 to 5.5 mm, but CK plants averaged less than 3.2 mm. Plant height was 9 to 108 mm for the CK but 3 to 155 mm for the treatment. We can see at least two different beneficial types of mutated plants by summarizing the changes in growth norms. One is that of plants dwarfing, which can reduce the number of mowing times in the growing season, and reduce the cost of management and maintenance. The other one is plants with fast growth and higher tiller and leaf number, which can shorten lawn establishment time. These mutation types are valuable for production application and breeding."
Language:Chinese
References:8
Note:Abstract also appears in English
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Han, L., Z.-y. Sun, Y.-q. Qian, and Z.-h. Peng. 2004. Changes in biological characteristics of Poa pratensis carried by Shenzhou-3 spaceship. (In Chinese) [Caoye Kexue] [Pratacultural Science]. 21(5):p. 17-19.
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