文献类型： 外文期刊

作者： Yu, Xihong ¹ ; Gao, Zhaohang ¹ ; Juan, Jiaxiang ³ ; Cheng, Yao ¹ ; Zhao, Meilan ⁵ ; Ma, Dongni ⁵ ; Xu, Xinbo ⁵ ; Jiang, X ¹ ;

作者机构： 1.Northeast Agr Univ, Coll Hort & Landscape, Harbin, Heilongjiang, Peoples R China

2.Northeast Forestry Univ, Innovat Ctr Undergrowth Econ Resource Dev & Utili, Harbin, Heilongjiang, Peoples R China

3.Shanghai Acad Agr Sci, Inst Edible Fungi, Minist Agr, Key Lab Appl Mycol Resources & Utilizat,Natl Res, Shanghai, Peoples R China

4.Shanghai Acad Agr Sci, Inst Edible Fungi, Shanghai Key Lab Agr Genet & Breeding, Shanghai, Peoples R China

5.Aijia Biol Technol Ltd Co, Harbin, Heilongjiang, Peoples R China

关键词： NWFP; Precise agriculture; Mutagenesis; Nursery culture; Breeding botany

期刊名称：INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY （ 影响因子：0.822； 五年影响因子：0.906 ）

ISSN： 1560-8530

年卷期： 2019 年 22 卷 5 期

页码：

收录情况： SCI

摘要： Natural Aralia elata reserves have been heavily exploited for medical and edible uses, resulting in an essential demand to rehabilitate the understory population using artificially cultured seedlings. Thorns around the cone tip generate a significant obstacle to affect the efficiency of A. elata development. In this study, ethyl methanesulfonate (EMS) was employed to induce mutagenesis and then growth and biomass in A. elata seedlings. EMS was applied to seedlings by root soaking or whole-plant spraying at doses of 0 (control), 19 (EMS-19), 38 (EMS-38) and 76 mu M (EMS-76). Height growth was higher in the spraying treatment by 10% than in the root-soaking treatment. Compared to the control, the EMS-38 treatment resulted in lower cone-thorn density (1.3 individuals cm(-2)) and the EMS-76 treatment resulted in lower fine root biomass (0.07 g plant(-1)), length (215 cm), and tip-number (39.8). Through digital analysis on shoot image, EMS-treated seedlings had lower green-color index (41-56) than controlled seedlings (61-84). Color and brightness indices were positively correlated with fine root growth and biomass, while red-color index had a positive relationship with height growth. (C) 2019 Friends Science Publishers