摘要
为研究七叶一枝花的生长发育适宜的土壤水分,为人工种植和引种驯化提供理论基础和技术支持,以长势一致的3年生七叶一枝花为试验材料,研究土壤不同含水量对其光合生理特性的影响。结果表明:处理30d时,各处理间Pn和Pro含量差异显著,其中,20%含水量处理显著提高七叶一枝花的Pn、Tr、Pro和Chl含量,分别提高2.04μmol/(m2·s)、0.34 mmol/(m2·s)、7.12 mg/g和2.12mg/g;5%含水量处理显著提高七叶一枝花的Ci、Sug和MDA含量,分别提高48μmol/mol、1.47mg/g和0.0133μmol/g。综合比较,七叶一枝花栽培以20%土壤含水量较适宜。
To explore the optimum soil moisture for growth and development of P. olyphylla, and provide the theoretical basis and technical support for artificial cultivation and introduction and domestication, by taking P. polyphylla as testing material, the effects of different soil moisture content on photosynthesis and physiological characteristics were studied. The results showed that there were significant differences among different treatments at 30 d. The Pn, Tr, Pro and Chl contents were increased by 2. 04 /,mol/(m2 · s), 0. 34 mmol/(m2 · s), 7. 12 mg/g and 2. 12 mg/g under 20% water moisture treatment, respectively. And the contents of Ci, Sug and MDA were increased by 48ptmol/mol, 1.47 mg/g and 0. 0133μmol/g under 5% soil moisture treatment, respectively. The result indicated that keeping the soil moisture to 20G is the proper irrigation management for P. polyphylla.
出处
《贵州农业科学》
CAS
2015年第8期42-45,共4页
Guizhou Agricultural Sciences
基金
贵州省教育厅青年项目"梵净山珍稀药用植物七叶一枝花产业化种植人工模拟环境研究"[黔教合KY(2013)205]
贵州省教育厅特色实验室建设项目"梵净山特色动植物资源重点实验室"[黔教合KY(2011)232]
贵州省教育厅创新人才团队项目"梵净山特色动植物资源保护与利用创新人才团队"[黔教合KY(2012)08]
关键词
七叶一枝花
土壤含水量
光合特性
生理特性
Paris polyphylla, soii moisture-content
photosynthetic characteristics
physiologicalcharacteristics