[1]陈莹,赵艳菲,迟翔丹,等.设施甜瓜新品种比较试验[J].北方园艺,2022,(15):46-50.[doi:10.11937/bfyy.20215015]
　WANG Yongji,HAO Xiaoling,ZHOU Jiajia,et al.Effects of Exogenous Glycine Betaine on Seed Germination and Seedling Growth of Alfalfa Under Drought Stress[J].Northern Horticulture,2022,(15):46-50.[doi:10.11937/bfyy.20215015]
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设施甜瓜新品种比较试验

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 期数: 2022年15 页码: 46-50 栏目: 出版日期: 2022-08-15
Title:
Effects of Exogenous Glycine Betaine on Seed Germination and Seedling Growth of Alfalfa Under Drought Stress
作者:
陈莹; 赵艳菲; 迟翔丹; 金鑫; 张金鹏; 惠长敏
（吉林省蔬菜花卉科学研究院，吉林 长春 130033）
Author(s):
WANG Yongji; HAO Xiaoling; ZHOU Jiajia; GUAN Zheng; ZHANG Fenguo
(College of Life Science,Shanxi Normal University,Taiyuan,Shanxi 030000)
关键词:
甜瓜; 品种; 比较
Keywords:
glycine betaine; drought stress; Medicago sativa; seed germination; seedling growth
DOI:
10.11937/bfyy.20215015
文献标志码:
A
摘要:
以引进的3个甜瓜品种、2个本省品种和3个自选品种为试验材料，采用随机区组的试验设计方法，对8个甜瓜品种在生育期、产量、果实品质以及商品性等13个农艺性状方面进行了比较试验，研究了不同品种在产量、可溶性固形物含量、节间长度以及叶面积等方面的差异，以期筛选出适宜当地栽培的优质、高产型薄皮甜瓜新品种，丰富甜瓜市场，满足不同消费群体的需求。结果表明：自主选育品种“F20”具有丰产、优质、商品性好等特点，中心糖度可达到13.6%，较对照提高19.3%，可以作为优良新品种进行示范推广。
Abstract:
Medicago sativa was used as the test material，and 20% concentration of polyethylene glycol (PEG 6000) was selected to simulate drought stress.The seed germination and seedling growth experiments were carried out at the concentrations of 0，10，20，30，40 mmol?L-1 and 50 mmol?L-1.GB was applied by root injection and leaf application at seedling stage.The related indexes of germination stage and seedling stage were studied，and then the effects of GB on the growth of alfalfa under drought stress were analyzed，in order to study the alleviating effect of exogenous betaine on drought stress，and provide reference for further improving the stress resistance and yield of alfalfa.The results showed that，1) when glycine betaine concentration was 0 mmol?L-1 and distilled water replaced betaine，all indexes of seed germination decreased，and GB was effectively relieved.When betaine concentration was 10 mmol?L-1，the effect was the best，and the germination rate increased by 30.5% compared with C0；germination potential increased by 46.8%；the germination index increased by 36.1%；the vitality index increased by 15.4%.2) At the seedling stage，when 20 mmol?L-1 was applied to the leaves，the main root length was the longest and the increment of plant height was the largest；CAT activity was the highest when 50 mmol?L-1 was injected into the root；MDA content decreased significantly when 20 mmol?L-1 was applied to leaves.50 mmol?L-1 had the greatest effect on tissue water content and POD activity.

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备注/Memo

第一作者简介：陈莹（1978-），女，硕士，副研究员，现主要从事西甜瓜新品种选育等研究工作。E-mail：56429596@qq.com.责任作者：惠长敏（1965-），女，硕士，研究员，现主要从事西甜瓜新品种选育及新技术推广等工作。E-mail：742659417@qq.com.基金项目：吉林省科技发展计划重点研发资助项目（20200402075NC）；国家现代农业产业技术体系资助项目（CARS-25）。收稿日期：2021-12-09

更新日期/Last Update: 2022-09-09