不同处理对沙枣嫩枝扦插效果的影响  

Influence of Different Treatments on Softwood Cutting Effect of Elaeagnus angustifolia

作　　者：王旭鹏 董聚苗 孙富强 金照光 刘振林[3] 张国君[3] Wang Xupeng;Dong Jumiao;Sun Fuqiang;Jin Zhaoguang;Liu Zhenlin;Zhang Guojun(Management Office of Changli Golden Coast National Nature Reserve,Qinhuangdao 066600,China;Agriculture Technical High School of Tangshan Abundant South Area,Tangshan 063306,China;College of Horticulture Science and Technology,Hebei Normal University of Science&Technology/Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization,Qinhuangdao 066600,China)

机构地区：[1]河北昌黎黄金海岸国家级自然保护区管理中心,河北秦皇岛066000 [2]唐山市丰南区农业技术高级中学,河北唐山063306 [3]河北科技师范学院园艺科技学院/河北省特色园艺种质挖掘与创新利用重点实验室,河北秦皇岛066000

出　　处：《防护林科技》2023年第1期54-57,共4页Protection Forest Science and Technology

基　　金：河北省重点研发计划项目(21326301D,21326346D);河北省高校园艺作物育种应用技术研发中心项目(YF201404);河北省级专业学位研究生培养实践基地(唐山植物园,202018)。

摘　　要：沙枣抗逆性强,适应范围广,利用价值高,但播种繁殖性状分离,很难保持亲本的优良特性。用沙枣嫩枝为扦插材料,通过正交试验来探索扦插时期、插穗部位和插穗长度对生根的影响。结果表明:扦插时期对沙枣嫩枝扦插生根影响最大,插穗部位影响次之。6个时期(6月9日、6月23日、7月7日、7月21日、8月4日、8月18日)以6月23日的生根率显著高于其他时期,达86.25%,根系效果指数与除7月7日外的其他时期无显著差异;7月7日的生根率显著高于除6月23日以外的其他时期,为64.82%,根系效果指数显著高于其他时期,达0.297。沙枣嫩枝扦插的最佳时间是6月下旬,此时期在无植物生长调节剂处理的情况下也可以大量生根成活。Elaeagnus angustifolia has strong stress resistance, wide rang of adaptation and high value. However, it is difficult to maintain the excellent characteristics of parents because of the separation of sowing and breeding traits. The orthogonal experiment design was performed with softwood of Elaeagnus angustifolia as cutting material to explore effects of cutting period, cutting position and cutting length on rooting. The results showed that the cutting period was a dominant factor in softwood cutting rooting of Elaeagnus angustifoliafollowed by cutting position. Based on the results obtained, six periods of Elaeagnus angustifolia softwood cutting(June 9 th, June 23 rd, July 7 th, July 21 st, August 4 th and August 18 th) were studied. The rooting rate reached 86.25% on June 23 rd, significantly higher than other periods. There was no significant difference in root effect index between June 23 rd and other periods except July 7 th. The rooting rate on July 7 th was 64.82%, significantly higher than that in other periods except June 23 rd, and the root effect index was 0.297, significantly higher than that in other periods. Therefore late June was the best time for softwood cutting of Elaeagnus angustifolia. At this time, it could also take root in large quantities without plant growth regulator treatment.

关 键 词：沙枣 嫩枝扦插 根系效果指数 生根率 

分 类 号：S793.9[农业科学—林木遗传育种] S723.1[农业科学—林学]