玉米自交系JH089种子萌发及幼苗生长的抗逆性

doi:10.6048/j.issn.1001-4330.2020.01.001

新疆农业科学 ›› 2020, Vol. 57 ›› Issue (1): 1-11.DOI: 10.6048/j.issn.1001-4330.2020.01.001

• 作物科学·分子生物 • 下一篇

玉米自交系JH089种子萌发及幼苗生长的抗逆性

赵海菊¹, 艾丽曼·阿布来孜¹, 塔伊尔·买买提江¹, 梁晓玲², 王长海³, 兰海燕¹

1. 新疆大学生命科学与技术学院/新疆生物资源基因工程重点实验室,乌鲁木齐 830046;
2. 新疆农业科学院粮食作物研究所,乌鲁木齐 830091;
3. 北京九圣禾农业科学研究院有限公司,北京 100081

收稿日期:2019-09-21 出版日期:2020-01-20 发布日期:2020-02-06
通信作者: 兰海燕(1969-),女,新疆乌鲁木齐人,教授,博士,硕士/博士生导师,研究方向为植物学,(E-mail)lanhaiyan@xju.edu.cn
王长海(1969-),男,新疆乌鲁木齐人,研究员,研究方向为作物遗传育种,(E-mail)wangchanghai@jiuheseed.com
作者简介:赵海菊(1981-),女,山东济宁人,博士研究生,研究方向为植物学,(E-mail)zhaohaiju@163.com
基金资助:
新疆维吾尔自治区重大科技专项(2018A01001);国家自然科学基金(31660068);自治区重点实验室开放课题(2016D03015)

Study on Seed Germination and Seedling Growth Resistance of Maize Inbred JH089

ZHAO Haiju¹, Ailiman Abulaizi¹, Tayier Maimaitijiang¹, LIANG Xiaoling², WANG Changhai³, LAN Haiyan¹

1. Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China;
2. Institute of Food Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China;
3. Beijing Join Hope Academy of Agricultural Science Co., Ltd., Beijing 100081, China

Received:2019-09-21 Online:2020-01-20 Published:2020-02-06
Correspondence author: LAN Haiyan(1969-), female, Urumqi, Xinjiang, professor, research field: botany, (E-mail) lanhaiyan@xju.edu.cn
WANG Changhai (1969-), male, Urumqi, Researcher, research field: crop genetics and breeding, (E-mail) wangchanghai@jiuheseed.com
Supported by:
Supported by the Science &Technology Major Special Foundation of Xinjiang Uygur Autonomous Region (2018A01001);National Natural Science Foundation of China (31660068);the Open Subject Funding of the Xinjiang Key Laboratory (2016D0315)

摘要/Abstract

摘要： 【目的】研究玉米优良自交系JH089在不同胁迫下种子萌发特性及幼苗生长情况,分析其对各种胁迫的耐受性,研究自交系JH089的抗逆性,为选育抗逆杂交种提供理论依据。【方法】以玉米自交系JH089为材料,在萌发期及2叶期进行不同浓度NaCl(100、200、250、300、400、500 mmol/L)、PEG 6000(10%、20%、30%)及4℃胁迫处理,测定萌发率、抗旱指数、株高、叶形等指标。【结果】玉米自交系JH089在萌发期随着NaCl或PEG处理浓度的增加,萌发所需时间延长,活力指数及抗旱耐盐指数下降。在幼苗期盐浓度高于200 mmol/L 或者PEG高于20%时株高、叶长和叶宽显著降低,出苗率大幅下降,植株生长显著减缓,叶片受胁迫程度明显,较长时间低温处理幼苗生长受到抑制。【结论】玉米自交系JH089能耐受低浓度的盐或旱胁迫,短时间低温对幼苗生长无显著影响,但较高强度或较长时间胁迫则造成明显伤害。

关键词: 玉米; 自交系JH089; 耐盐性; 耐旱性; 低温; 形态指标

Abstract: 【Objective】 To study the seed germination characteristics and seedling growth of maize inbred JH089 under different stresses, and analyze its tolerance in the hope of providing a theoretical basis for resistant breeding.【Method】 Maize inbred line JH089 was used as the experimental material to determine the indicators such as germination percentage, drought resistance index, plant height and leaf shape, etc. in germination and two-leaf stages under different concentrations of NaCl (100, 200, 250, 300, 400, 500 mmol/L, respectively), PEG 6000 (10%, 20%, 30%) or at 4℃. 【Result】 The results indicated that, with the increase of treatment concentration, the germination of maize inbred JH089 was significantly delayed, the vigor and other indexes of drought and salt tolerance were gradually decreased. When NaCl concentration was higher than 200 mmol/L or the PEG was higher than 20%, the seedling emergence rate, plant height, leaf length and leaf width decreased significantly, the plant growth became slower, and different symptoms were observed on the leaf. Seedling growth was inhibited by low temperature treatment for a long time. 【Conclusion】 The results of this study showed that maize inbred line JH089 could tolerate lower rather higher concentration of drought or drought stress, and short time low temperature had no significant effect on seedling growth, but higher intensity or longer time stress caused significant injury.

Key words: maize; inbred JH089; salt tolerance; drought tolerance; low temperature; morphological indexesFund project

中图分类号:

S513

赵海菊, 艾丽曼·阿布来孜, 塔伊尔·买买提江, 梁晓玲, 王长海, 兰海燕. 玉米自交系JH089种子萌发及幼苗生长的抗逆性[J]. 新疆农业科学, 2020, 57(1): 1-11.

ZHAO Haiju, Ailiman Abulaizi, Tayier Maimaitijiang, LIANG Xiaoling, WANG Changhai, LAN Haiyan. Study on Seed Germination and Seedling Growth Resistance of Maize Inbred JH089[J]. Xinjiang Agricultural Sciences, 2020, 57(1): 1-11.

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玉米自交系JH089种子萌发及幼苗生长的抗逆性

Study on Seed Germination and Seedling Growth Resistance of Maize Inbred JH089

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