SUN Xiaogang,ZHANG Xue,GU Na,et al.Effects of Drought Stress on Physiological Characteristics of Malus ‘Jimei’[J].Northern Horticulture,2020,44(12):82-88.[doi:10.11937/bfyy.20192812]
干旱胁迫对‘吉美’海棠生理特性的影响
- Title:
- Effects of Drought Stress on Physiological Characteristics of Malus ‘Jimei’
- 文献标志码:
- A
- 摘要:
- 以‘吉美’海棠（Malus ‘Jimei’）嫁接苗为试材，采用盆栽试验法，设置对照（CK）、轻度干旱（SD）、中度干旱（MD）和重度干旱（HD）胁迫4个处理组，研究了不同干旱胁迫条件下‘吉美’海棠植株的生理特性规律，以期为‘吉美’海棠的适应性推广提供参考依据。结果表明：随着土壤相对含水量的降低及干旱胁迫时间的延长，‘吉美’海棠的叶片水势及相对含水量（RWC）逐渐降低；光合系统被破坏，气孔关闭，气孔导度（Gs）、蒸腾速率（Tr）及净光合速率（Pn）降低，胞间CO2浓度（Ci）则呈上升趋势，其中，引起Pn下降的原因为非气孔因素；最大光化学效率（Fv/Fm）、实际光能转化率（ΦPSⅡ）和光化学淬灭系数（qP）值下降，PSⅡ遭到破坏；保护酶超氧化物歧化酶（SOD）和过氧化物酶（POD）活性在处理初期略有上升但随着土壤相对含水量的降低及处理时间的增加，均出现了下降并失去了保护酶功能。‘吉美’海棠具有一定的抗旱能力，能适应土壤相对含水量范围在55%～65%的环境；在‘吉美’海棠适宜的光照和温度条件下允许短期轻度干旱胁迫和较短期的中度干旱胁迫，当土壤相对含水量低于45%时应及时补充水分，从而避免持续的重度干旱胁迫所带来的影响，必要时提供人工灌溉措施。
- Abstract:
- The grafted seedlings of Malus ‘Jimei’ were used as experimental materials,and four treatment groups including control (CK),slight drought (SD),moderate drought (MD) and heavy drought (HD) were carried out in the pot experiment.The physiological characteristics of Malus ‘Jimei’ plants under different drought stress conditions were studied,in order to provide reference for the adaptive promotion of Malus ‘Jimei’.The results showed that with the decrease of soil relative water content and the extension of drought stress time,the leaf water potential and relative water content (RWC) of Malus ‘Jimei’ decreased gradually.Stomatal conductance (Gs),transpiration rate (Tr) and net photosynthetic rate (Pn) decreased with the destruction of photosynthetic system,stomatal closure,and intercellular CO2 concentration (Ci) increased.Among them,non-stomatal factors caused the decrease of Pn.Maximal photochemical efficiency (Fv/Fm),the actual light energy conversion (ΦPSⅡ) and light chemical quenching coefficient (qP) values fell,the PSⅡ destruction;The activity of protective enzymes SOD and POD increased slightly in the early stage of treatment,but decreased with the decrease of soil relative water content and the increase of treatment time,and the protective enzyme function was lost.In conclusion,Malus ‘Jimei’ had certain drought-resistant ability and could adapt to the environment with soil relative water content ranging from 55%-65%.Short term slight drought stress and short term moderate drought stress were allowed under the suitable light and temperature conditions of Malus ‘Jimei’.When the relative soil water content was less than 45%,water should be replenishment in time to avoid the impact of continuous severe drought stress.Artificial irrigation measures should be provided when necessary.
参考文献/References:
[1]徐扬.川西高原4种苹果属植物营养器官的解剖结构研究及抗旱策略评价[D].成都:四川农业大学,2016.[2]党云萍,李春霞.干旱胁迫下八棱海棠中丙二醛及质膜透性的变化[J].北方园艺,2012(21):33-35.[3]蒲伟凤,纪展波,李桂兰,等.作物抗旱性鉴定方法研究进展（综述）[J].河北科技师范学院学报,2011,25(2):34-39.[4]冯航.干旱胁迫对紫背天葵几种生理指标的影响[J].南方农业,2016,10(18):219,221.[5]徐扬,陈小红,赵安玖.川西高原4种苹果属植物叶片解剖结构与其抗旱性分析[J].西北植物学报,2015,35(11):2227-2234.[6]孙志虎,王庆成.应用PV技术对北方4种阔叶树抗旱性的研究[J].林业科学,2003(2):33-38.[7]张治安,陈展宇.植物生理学实验技术[M].长春:吉林大学出版社,2008.[8]吴红强,杨柳青,曾红,等.凹叶景天在水分胁迫下的生理响应研究[J].中南林业科技大学学报,2016,36(8):109-114.[9]高国日,刘娟娟,陈道国,等.土壤干旱对2个沙棘品种叶片水势和光合特性的影响[J].浙江农林大学学报,2017,34(6):999-1007.[10]ZHANG J Z,SHI L,SHI A P.Photosynthetic responses of four Hosta cultivation to shade treatment[J].Photosynthetic,2004,42(2):213-218.[11]FARQUHAR G D,SHARKEY T D.Stomatal conductance and photosynthesis[J].Annual Review of Plant Physiology,1982,33(3):317-345.[12]毕建杰,刘建栋,叶宝兴,等.干旱胁迫对夏玉米叶片光合及叶绿素荧光的影响[J].气象与环境科学,2008(1):10-15.[13]何炎红,郭连生,田有亮.白刺叶不同水分状况下光合速率及其叶绿素荧光特性的研究[J].西北植物学报,2005,25(11):2226-2233.[14]许大全,张玉忠,张荣铣.植物光合作用的光抑制[J].植物生理学通讯,1992,28(4):237-243.[15]陈建.四种灌木植物光合效率对土壤水分的响应过程与机制[D].泰安:山东农业大学,2008.[16]林魁,黄枝,徐永.光质对生菜种子萌发及幼苗生长的影响[J].山西农业大学学报(自然科学版),2018,38(8):32-39.[17]王学文,付秋实,王玉珏,等.水分胁迫对番茄生长及光合系统结构性能的影响[J].中国农业大学学报,2010,15(1):7-13.[18]张金政,张起源,孙国峰,等.干旱胁迫及复水对玉簪生长和光合作用的影响[J].草业学报,2014,23(1):167-176.[19]邹颖良,张锡国.水分胁迫对番茄幼苗叶片保护酶活性及膜质过氧化的影响[J].广东第二师范学院学报,2018,38(5):72-77.
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备注/Memo
第一作者简介：孙晓刚（1969-），男，硕士，教授，研究方向为园林植物栽培生理与景观生态。E-mail：383792969@qq.com.基金项目：吉林省重点科技成果转化资助项目（20170307014NY）。收稿日期：2019-09-19