YUE Hua,WANG Qian-qian.Study on Photosynthetic Characteristics of Six Varieties ofPaeonia suffruticosavar.papaveracea[J].HEILONGJIANG AGRICULTURAL SCIENCES,2011,(01):39-41.
六个紫斑牡丹品种光合特性初步研究
- Title:
- Study on Photosynthetic Characteristics of Six Varieties ofPaeonia suffruticosavar.papaveracea
- 文章编号:
- 1002-2767201101-0039-03
- Keywords:
- Paeonia suffruticosavar.papaveracea; photosynthesis; diurnal variation; light response; chlorophyll
- 分类号:
- S685.11
- 文献标志码:
- A
- 摘要:
- 采用LI-6400光合作用测定仪测定哈尔滨露地栽培的6个紫斑牡丹品种和平莲、红莲、玫瑰红、大漠风云、紫冠玉珠、红裙玉带的光合特性。结果表明:玫瑰红、大漠风云Pn日变化呈“单峰型”曲线，玫瑰红峰值出现在12∶00，而大漠风云曲线整体呈下降的趋势，其余4个呈“双峰型”曲线，12∶00有明显“午休”现象，两峰值分别出现在10∶00和14∶00。大漠风云LSP最高，LCP最低，其次为紫冠玉珠，光适应性较其它品种宽，玫瑰红LSP较低，LCP较高，具有较窄的光适应性。由叶绿素含量和叶绿素a/b可知，红裙玉带、大漠风云耐阴性最强，但日平均光合速率及光饱和速率均介于其它品种之间，叶绿素含量差异不是造成6种材料光合能力差异的主要因素。
- Abstract:
- The photosynthetic characteristics of six varieties of Paeonia suffruticosa var.papaveraceaHepinglian，Honglian，Meiguihong，Damofengyun，Ziguanyuzhu，Hongqunyudaicultivated in open field of Harbin were studied with the LI-6400 photosynthetic apparatus.The results showed that:the Pn diurnal variations of Meiguihong and Damofengyun were the ‘single peak’ curves，Meiguihong with the peak at 12∶00，and Damofengyun was a downward trend.While the other four were ‘double peak’ curves，with obvious ‘midday depression’ at 12∶00，the two peaks appeared at 10∶00 and 14∶00，respectively.Damofengyun with the highest LSP and the lowest LCP，followed by Ziguanyuzhu，had wider light adaptation than others，Meiguihong with lower LSP and higher LCP，had narrow light adaptation.By the chlorophyll content and chlorophyll a/b，it was known that Hongqunyudai，Damofengyun had stroger shady-tolerance，which were in the middle accroding to the daily average photosynthetic rate and maximum net photosynthetic rate，so chlorophyll content was not the main factor leading to the difference of 6 varities’ photosynthetic capacity.
参考文献/References:
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备注/Memo
第一作者简介：岳桦(1962-)，女，辽宁省营口市人，硕士，教授，硕士研究生导师，从事园林植物应用研究。E-mail:yuehua0123@126.com。