| 唐璐锜,许自龙,陈蓉萍,魏佳,刘培刚,朱燕,林天宝,刘岩,范志强.桑树种子萌发和幼苗生长耐镉耐铅能力综合评价[J].井冈山大学自然版,2024,45(6):49-58 |
| 桑树种子萌发和幼苗生长耐镉耐铅能力综合评价 |
| COMPREHENSIVE EVALUATION OF CADMIUM AND LEAD TOLERANCE IN THE SEED GERMINATION AND SEEDLING GROWTH OF MULBERRY |
| 投稿时间：2024-05-22 修订日期：2024-07-12 |
| DOI：10.3969/j.issn.1674-8085.2024.06.008 |
| 中文关键词: 桑树 Cd Pb 种子萌发 幼苗生长 品种筛选 |
| 英文关键词: mulberry Cd Pb seed germination seedling growth variety screening |
| 基金项目:“十四五”农业新品种选育重大育种专项蚕桑协作项目(2021C02072-5)；现代农业产业技术体系建设专项(CARS-18-270203)；皖西南生物多样性和生态保护安徽省重点实验室开放基金项目(2020zd04)；安庆师范大学大学生创新创业训练计划项目(20220710) |
| 作者 | 单位 | E-mail | | 唐璐锜 | 安庆师范大学生命科学学院, 安徽, 安庆 246133
浙江省农业科学院蚕桑与茶叶研究所, 浙江, 杭州 310021 | | | 许自龙 | 浙江省农业科学院蚕桑与茶叶研究所, 浙江, 杭州 310021 | | | 陈蓉萍 | 安庆师范大学生命科学学院, 安徽, 安庆 246133 | | | 魏佳 | 浙江省农业科学院蚕桑与茶叶研究所, 浙江, 杭州 310021 | | | 刘培刚 | 浙江省农业科学院蚕桑与茶叶研究所, 浙江, 杭州 310021 | | | 朱燕 | 浙江省农业科学院蚕桑与茶叶研究所, 浙江, 杭州 310021 | | | 林天宝 | 浙江省农业科学院蚕桑与茶叶研究所, 浙江, 杭州 310021 | | | 刘岩 | 浙江省农业科学院蚕桑与茶叶研究所, 浙江, 杭州 310021 | | | 范志强 | 安庆师范大学生命科学学院, 安徽, 安庆 246133 | 654539271@qq.com |
|
| 摘要点击次数: 69 |
| 全文下载次数: 96 |
| 中文摘要: |
| 为探究重金属镉（Cd）、铅（Pb）胁迫对桑树种子萌发及幼苗生长的影响，评价其耐性，筛选抗性更好的桑树种质资源，以浙桑杂1号（ZZ-1）~浙桑杂9号（ZZ-9）（9种）桑树杂交品种为材料，分别测定了不同浓度重金属Cd（0、25、100、400、1 000 mg/L）、Pb（0、250、500、1 000、2 000 mg/L）单一处理下，桑树种子萌发及幼苗生长的各项指标。结果表明：低浓度单一的Cd、Pb处理对桑树种子萌发未见明显影响，当单一Cd处理浓度＞100 mg/L，以及单一Pb处理浓度＞250 mg/L时，9种桑树种子的种子萌发指标以及种子活力指数、幼苗下胚轴和胚根长度等指标，均会随着重金属离子浓度升高而显著降低。9个品种对Cd、Pb的耐受能力存在差异，利用主成分分析和隶属函数法对其进行综合评价，其中ZZ-6耐受Cd和Pb能力最强，有望在农业生产中，作为植物修复Cd、Pb污染土壤的桑树是值得推广种植品种。 |
| 英文摘要: |
| In order to explore the effects of cadmium (Cd) and lead (Pb) stress on the seed germination and seedling growth of mulberry and to screen the germplasm resources with high resistance. Zheza-1 (ZZ-1) ~ Zheza-9 (ZZ-9) (9 kinds of mulberry hybrid varieties) were used as materials. The indexes of seed germination and seedling growth of mulberry were determined by Cd (0, 25, 100, 400, 1 000 mg/L) and Pb (0, 250, 500, 1 000, 2 000 mg/L) at different concentrations. The results showed that the mulberry seed germination were not significantly inhibited by Cd and Pb at the low concentrations; but when the single Cd concentrations were more than 100 mg/L, and the single Pb concentrations were more than 250 mg/L, the seed germination index, seed vigor index, hypocotyl and radicle length of 9 mulberry seeds decreased significantly with the increase of heavy metal ion concentration. There were differences in the resistance of 9 varieties to Cd and Pb. Principal component analysis and membership function method were used to comprehensively evaluate the resistance of 9 varieties to Cd and Pb, among which ZZ-6 had the strongest resistance to Cd and Pb, and was expected to be popularized as a planting variety of mulberry in agricultural production to repair the soil contaminated by Cd and Pb. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
