Effects of 60Co-γ Ray Radiation on Seed Germination and Seedling Growth of Carex leucochlora

doi:10.11733/j.issn.1007-0435.2022.12.013

Acta Agrestia Sinica ›› 2022, Vol. 30 ›› Issue (12): 3279-3283.DOI: 10.11733/j.issn.1007-0435.2022.12.013

Effects of ⁶⁰Co-γ Ray Radiation on Seed Germination and Seedling Growth of Carex leucochlora

WANG Meng^1,2, ZHANG Kang-cheng¹, FAN Xi-feng¹, TENG Wen-jun¹, WEN Hai-feng¹, ZHANG Hui¹, GAO Kang¹, TENG Ke¹, WU Ju-ying¹, YUE Yue-sen¹

1. Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Key Laboratory of Urban Agriculture(North China), Ministry of Agriculture and Rural Affairs, Beijing 100097, China;
2. College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China

Received:2022-06-27 Revised:2022-09-02 Published:2023-01-04

⁶⁰Co-γ射线对青绿苔草种子萌发及幼苗生长的影响

王萌^1,2, 张康成¹, 范希峰¹, 滕文军¹, 温海峰¹, 张辉¹, 高康¹, 滕珂¹, 武菊英¹, 岳跃森¹

1. 北京市农林科学院草业花卉与景观生态研究所, 农业农村部华北都市农业重点实验室, 北京 100097;
2. 北京农学院植物科学技术学院, 北京 102206

通讯作者: 岳跃森,E-mail:yysen2008@sina.com
作者简介:王萌(1999-),女,汉族,河北衡水人,硕士研究生,主要从事观赏草研究,E-mail:wmeng116@126.com
基金资助:
北京市农林科学院科技创新专项(KJCX20200107,CZZJ202210,KJCX20220103)资助

Abstract

Abstract: In order to investigate the influences of different ⁶⁰Co-γ ray radiation doses on the seed germination and seedling growth of Carex leucochlora and select a suitable radiation dose,different ⁶⁰Co-γ ray radiation doses of treatments (0(CK)，75，100，150，250，450 and 650 Gy) were performed on seeds of C. leucochlora in this study and the 50% relative seedling rate was used as standrad to determine the semi-lethal dose. The results showed that the germination percentage,germination potential,germination index,vigor index,seedling formation rate,seedling height and root length of seedings decreased gradually with the increase of irradiation dose. According to the relative seedling rate of seeds,the optimal radiation dose (semi-lethal dose) was about 138 Gy. The aim of this study was to provide a theoretical basis for germplasm innovation and new variety cultivation of C. leucochlora using 60Co-γ ray radiation mutagenesis technology in the future.

Key words: Carex leucochlora, Seed, ⁶⁰Co-γ ray, Radiation

摘要： 为探究不同剂量⁶⁰Co-γ射线辐射对青绿苔草种子萌发及幼苗生长的影响，筛选青绿苔草种子适宜的辐射剂量，本研究以青绿苔草50%相对成苗率作为确定半致死量的标准，对青绿苔草种子进行⁶⁰Co-γ射线辐射处理，辐射剂量分别为0(对照)，75，100，150，250，450和650Gy。结果表明，随着辐照剂量的增加，青绿苔草种子的发芽率、发芽势、发芽指数、活力指数、成苗率以及幼苗的苗高和根长均逐渐降低；根据种子的相对成苗率，初步确定青绿苔草种子的适宜辐射剂量(半致死剂量)约为138Gy。本研究以期为今后利用⁶⁰Co-γ射线辐射诱变技术对青绿苔草进行种质创新和新品种培育提供理论依据。

关键词: 青绿苔草, 种子, 60Co-γ射线, 辐射

CLC Number:

S515

WANG Meng, ZHANG Kang-cheng, FAN Xi-feng, TENG Wen-jun, WEN Hai-feng, ZHANG Hui, GAO Kang, TENG Ke, WU Ju-ying, YUE Yue-sen. Effects of ⁶⁰Co-γ Ray Radiation on Seed Germination and Seedling Growth of Carex leucochlora[J]. Acta Agrestia Sinica, 2022, 30(12): 3279-3283.

王萌, 张康成, 范希峰, 滕文军, 温海峰, 张辉, 高康, 滕珂, 武菊英, 岳跃森. ⁶⁰Co-γ射线对青绿苔草种子萌发及幼苗生长的影响[J]. 草地学报, 2022, 30(12): 3279-3283.

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Effects of ⁶⁰Co-γ Ray Radiation on Seed Germination and Seedling Growth of Carex leucochlora

⁶⁰Co-γ射线对青绿苔草种子萌发及幼苗生长的影响

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