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题名: Photosynthetic characteristics of two alpine flowers, Meconopsis integrifolia and Primula sinopurpurea
作者: null(张石宝)1; Chang, Wei2; Hu, Hong2
刊名: JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY
英文摘要: Meconopsis integrifolia and Primula sinopurpurea are ornamental plants native to high elevations in the Himalayas, thus cultivating them at lower altitudes poses challenges. In order to understand the physiological adaptability of M. integrifolia and P sinopurpurea to the different environments which are needed for the introduction and domestication of wild flowers, this study investigated their photosynthetic performance at lower altitudes in a nursery at an altitude of 3,260 m asl, and their photosynthetic responses to varying light and temperature conditions. On a clear day, the maximum photosynthetic rates in both species occurred at approx. 11:00 h, then decreased, indicating photo-inhibition at midday. Stomatal limitation played an important role in the depression of photosynthesis at midday. Although M. integrifolia had a lower light-saturated photosynthetic rate than P sinopurpurea, the daily mean photosynthetic rates of the two species were not significantly different. Photosynthesis in both alpine flowers was considerably sensitive to high temperature. The significant decreases in photosynthetic rates in P sinopurpurea and M. integrifolia at higher temperatures would limit their photosynthetic performance and growth at low altitudes.
出版日期: 2010-07-01
卷号: 85, 期号:4, 页码:335-340
语种: 英语
收录类别: SCI
学科分类: Horticulture
ISSN号: 1462-0316
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/14097
Appears in Collections:资源植物与生物技术所级重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Kunming 650223, Yunnan, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China

Recommended Citation:
Zhang, SB; Chang, W; Hu, H.Photosynthetic characteristics of two alpine flowers, Meconopsis integrifolia and Primula sinopurpurea,JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY,2010,85(4):335-340
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