现代农业科技2023年第7期园艺学不同灌水定额对欧李抗逆性状、耗水特性及水分利用效率的影响张洪银蔡崭红殷韶梅吴佳瑞王昊马文礼*（宁夏农垦农林牧技术推广服务中心，宁夏银川750024）摘要通过研究不同灌水定额下欧李抗逆性状及耗水特性，本试验探索了欧李在宁夏中北部半干旱地区栽培的可行性和最优灌水定额。结果表明：成年欧李树在灌水定额为7mm时仍能完成生育全过程，表明其具有较强的抗旱性；随着灌水定额的增加，丙二醛含量和细胞膜透性均呈先降低后升高的变化趋势，游离脯氨酸和叶绿素a含量均呈先升高后降低的变化趋势。综合分析欧李抗逆性、耗水特性及水分利用效率可知，灌水定额为20mm处理是兼顾产量和节水效益的最佳处理，与灌水定额为7mm处理相比，虽然水分利用效率不高，但产量增加84.08%。总体来看，在该地区将欧李作为经济林兼作生态林的栽培树种，具有良好的经济效益和生态效益。关键词欧李；灌水定额；抗逆性状；产量；水分利用效率中图分类号S662.3文献标识码A文章编号1007-5739（2023）07-0052-04DOI：10.3969/j.issn.1007-5739.2023.07.015开放科学（资源服务）标识码（OSID）：EffectsofDifferentIrrigationQuotasonStressResistance,WaterConsumptionCharacteristicsandWaterUseEfficiencyofPrunushumilisZHANGHongyinCAIZhanhongYINShaomeiWUJiaruiWANGHaoMAWenli*(NingxiaAgriculturalReclamation,Agriculture,ForestryandAnimalHusbandryTechnologyExtensionServiceCenter,YinchuanNingxia750024)AbstractThroughstudyingthestressresistanceandwaterconsumptioncharacteristicsofPrunushumilisunderdifferentirrigationquotas,thisexperimentexploredthefeasibilityandoptimalirrigationquotaofPrunushumiliscultivationinthesemi-aridareaofthecentralandnorthernNingxia.TheresultsshowedthattheadultPrunushumiliscouldstillcompletethewholegrowthprocesswhentheirrigationquotawas7mm,indicatingthatithadstrongdroughtresistance.Withtheincreaseofirrigationquota,thecontentofmalondialdehydeandthepermeabilityofcellmembranedecreasedfirstandthenincreased,andthecontentoffreeprolineandchlorophyllaincreasedfirstandthendecreased.Throughcomprehensiveanalysisofstressresistance,waterconsumptioncharacteristicsandwateruseefficiencyofPrunushumilis,itcouldbeseenthatthetreatmentwithirrigationquotaof...
