YAN Qiu-jie,HUANG Dan,GU Ying-qiong,et al.ffect of Exogenous Calcium to Disporum cautoniense Leaves Growth at Natural Low Temperature[J].Northern Horticulture,2015,39(03):66-69.[doi:10.11937/bfyy.201503021]
外源钙对自然低温下富贵竹叶片生长的影响
- Title:
- ffect of Exogenous Calcium to Disporum cautoniense Leaves Growth at Natural Low Temperature
- Keywords:
- Disporum cautoniense; natural low temperature; calcium chloride; relative electrical conductivity; MDA; free proline
- 文献标志码:
- A
- 摘要:
- 为探究能够提高富贵竹叶片生长的适宜外源钙浓度，用水培法研究了冬季自然低温下0.3%~0.7%氯化钙溶液对富贵竹叶片黄叶面积及黄叶指数，叶片干尖率及叶片含水量、叶绿素含量、丙二醛含量、游离脯氨酸含量及电导率等形态和生理指标的影响。结果表明：0.3%氯化钙溶液处理下，富贵竹叶片的黄叶面积，叶片干尖率和叶绿素b含量低于对照，黄叶指数高于对照，但均与对照无显著差异；叶片含水量极显著地高于对照；叶绿素a含量、相对电导率、丙二醛含量和游离脯氨酸含量极显著地低于对照，但与对照的差值最小。综合各项指标，0.3%的氯化钙溶液优于0.4%~0.7%氯化钙处理浓度。因此，0.3%氯化钙溶液有利于自然低温下水培富贵竹叶片的生长。
- Abstract:
- In order to explore the suitable exogenous calcium concentration for the better growth of Disporum cautoniense leaves，the morphological and physiological indexes of Disporum cautoniense cultured in 0.3%~0.7% calcium chloride solution at the natural low temperature of winter were measured.The results showed that the yellow leaf area，the rate of yellow blade tip and chlorophyll b content of the calcium chloride solution treatment under 0.3% were lower than the control，and the yellow leaf index were higher than the control.There were no significant difference between the above index and the control.The leaf water content was higher than the control very significantly.The chlorophyll a content，the relative electrical conductivity，MDA content and the free proline content were lower than the control very significantly，but the differences with the control attached minimum.From all indexes，the 0.3% of calcium chloride solution was better than 0.4%~0.7% of calcium chloride solution concentration.Therefore，the suitable exogenous calcium chloride concentration to Disporum cautoniense leaf growth at natural low temperature was 0.3%.
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备注/Memo
第一作者简介：闫秋洁（1980-），女，甘肃酒泉人，博士研究生，讲师，现主要从事植物抗逆遗传等研究工作。E-mail：veronica008@163.com. 责任作者：杨毅（1963-），男，四川彭州人，博士，教授，现主要从事植物抗逆等研究工作。基金项目：国家自然科学基金资助项目（31171586）。