SUN Shan,XU Xiuyu,ZHANG Lisi,et al.Effect of Fulvic Acid on Transpiration and Photosynthetic Characteristics of Sweet Cherry Rootstock ‘Gisela’ Cutting Seedling[J].Northern Horticulture,2018,42(10):45-49.[doi:10.11937/bfyy.20173714]
黄腐酸对甜樱桃砧木“吉塞拉”扦插苗蒸腾作用及光合特性的影响
- Title:
- Effect of Fulvic Acid on Transpiration and Photosynthetic Characteristics of Sweet Cherry Rootstock ‘Gisela’ Cutting Seedling
- 关键词:
- 甜樱桃砧木“吉塞拉”; 移栽; 黄腐酸; 光合特性; 蒸腾作用
- Keywords:
- Sweet Cherry Rootstock ‘Gissela’; transplantation; fulvic acid; photosynthetic characteristics; transpiration
- 文献标志码:
- A
- 摘要:
- 以甜樱桃砧木“吉塞拉”扦插苗为试材,分析了喷施浓度为0.08、0.16、0.32 g?L-1代谢型抗蒸腾剂黄腐酸对其光合速率、蒸腾速率、气孔导度及水分利用效率的影响,并对“吉塞拉”绿枝扦插苗的移栽成活率进行了研究。结果表明:喷施黄腐酸可显著降低叶片的气孔导度和蒸腾速率,提高植株的水分利用效率,且黄腐酸浓度越高效应越显著。与清水对照相比,喷施0.08、0.16、0.32 g?L-1的黄腐酸,使移栽成活率分别提高了4.0、8.3、6.7个百分点。上述结果表明喷施代谢型抗蒸腾剂黄腐酸能通过调节气孔开度而减少水分损失,且以0.16 g?L-1黄腐酸的效果最好,可提高“吉塞拉”扦插苗的移栽成活率。
- Abstract:
- Sweet cherry rootstock ‘Gisela’ cutting seedling was used as material,the effects of fulvic acid (metabolic antitranspirant) on photosynthetic rate,transpiration rate,stomatal conductance and water use efficiency were analyzed in order to study the transplanting survival rate of ‘Gisela’ cutting seedling.The results showed that the transpiration rate,stomatal conductance were evidently reduced by foliar spraying fulvic acid,while water use efficiency was improved,the effects of fulvic acid were more remarkable along with the spraying concentration increased.The depressing in photosynthesis was mainly caused by stomatal factors.Compared with clean water control,fulvic acid solutions of 0.08 g?L-1,0.16 g?L-1,0.32 g?L-1 increased the transplanting survival rates by 4.0,8.3 and 6.7 percentage point,respectively.In conclusion,spraying fulvic acid just after transplantation could reduce the water loss through adjusting stomatal opening,the effect fulvic acid solution of 0.16 g?L-1 was the best,and then the survival rate of transplantation was increased.
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备注/Memo
第一作者简介:孙山(1966-),男,博士,研究员,现主要从事果树生理与品种资源等研究工作。E-mail:sunshan03@163.com.责任作者:高华君(1971-),男,博士,研究员,现主要从事果树栽培资源等研究工作。E-mail:hjgaosdau@hotmail.com.基金项目:山东省自然科学基金资助项目(ZR2012CM039);泰安市科技发展计划资助项目(20123063)。收稿日期:2018-02-05