不同处理对“温185”核桃种子萌发及幼苗生长的影响  

Effects of Different Treatments on Seed Germination and Seedling Growth of Wen 185 Juglans regia L.

作　　者：丁文文 郭松 张锐[1,2,3] 包建平 郭龙[4] DING Wenwen;GUO Song;ZHANG Rui;BAO Jianping;GUO Long(School of Horticulture and Forestry,Tarim University,Aksu Xinjiang 843000,China;Key Laboratory for the Protection and Utilization of Biological Resources in the Tarim Basin of Xinjiang Production and Construction Corps,Aksu Xinjiang 843000,China;National and Local Joint Engineering Laboratory for Efficient and High-quality Cultivation and Deep Processing Technology of Characteristic Fruit Trees in Southern Xinjiang,Aksu Xinjiang 843000,China;Agricultural Development Service Center of the Third Regiment of Alar City,the First Division of Xinjiang Production and Construction Corps,Aksu Xinjiang 843000,China)

机构地区：[1]塔里木大学园艺与林学学院,新疆阿拉尔843300 [2]新疆兵团塔里木盆地生物资源保护利用重点实验室,新疆阿拉尔843300 [3]南疆特色果树高效优质栽培与深加工技术国家地方联合工程实验室,新疆阿拉尔843300 [4]新疆兵团第一师阿拉尔市三团农业发展服务中心,新疆阿克苏843000

出　　处：《种子》2023年第2期90-96,共7页Seed

基　　金：核桃全产业链创新团队——“三站链合”核桃全产业链产学研政的发展理论与实践(TDZKCX 202101);研究生科研创新计划项目(TDGRI 202011);现代核桃产业科普资源开发与基地建设(2022年科普惠民服务专项)。

摘　　要：为探讨不同植物生长调节剂对“温185”核桃种子萌发及幼苗生长的影响,以核桃预处理后的带壳种子和去壳种子为试材,GA_(3)和NAA分别设50、150、250、350、450 mg/L等5个浓度梯度,对种子的萌芽率、发芽率、烂种率及幼苗生长指标进行分析。结果表明,种子去壳处理对种子萌发和幼苗生长指标的促进作用优于带壳种子;与对照相比,GA_(3)和NAA处理均能显著提高种子的萌芽率和发芽率,去壳种子经GA_(3) 350 mg/L处理后,萌芽率和发芽率最高达到86.03%和93.06%,苗高达21.55 cm,叶片数达17.40片,腋芽为3.1个;去壳种子经NAA 350 mg/L处理后,幼苗主根长和须根数最多,分别为11.4 cm和22.4条。研究表明,经外源植物激素浸种后,去壳处理能有效提高核桃种子萌发能力,并能促进幼苗各项指标的生长,适宜浓度GA_(3)处理有利于去壳种子萌发及幼苗地上部分生长,而NAA处理相对有利于促进地下根系的生长。To investigate the effects of different plant growth regulators on the seed germination and seedling growth of Wen 185 walnut,the shelled seeds and hulled seeds after pretreatment of walnut were used as test materials.Five concentration gradients of 50,150,250,350,450 mg/L were set for gibberellin(GA_3) and naphthalene acetic acid(NAA),respectively.The germination rate,sprouting rate,rotten seed rate and seedling growth indicators were analyzed.The results showed that the effect of seed shelling on seed germination and seedling growth index was better than that of seed with shell;Compared with the control,both GA_(3) and NAA treatments could significantly improve the germination rate and sprouting rate of seeds.When GA_(3) 350 mg/L was applied to the seed,the germination rate and sprouting rate reached 86.03% and 93.06%,the seedling height was 21.55 cm,the number of leaves was 17.40,and the number of axillary buds was 3.1;When the seeds were treated with NAA 350 mg/L,the main root length and fibrous root length of the seedlings were 10.2 cm and 22.4 at most.Studies showed that after soaking with exogenous plant hormones,dehulling treatment could effectively improve the germination of walnut seeds,and could promote the growth of various indicators of seedlings.Appropriate concentration of GA_(3) treatment was beneficial to the germination of hulled seeds and the aboveground growth of seedlings,while NAA treatment was relatively beneficial to promote the growth of underground roots.

关 键 词：核桃 GA_(3) NAA 种子萌发 幼苗生长 

分 类 号：S664.1[农业科学—果树学]